Thursday, August 6, 2020

Beirut explosion

Beirut explosion…
Thank you from the heart for all your lovely emails, beautiful message, and warm support!
My family and I are doing well. We are staying in the north part of Lebanon, 35 km from the explosion and even, the buildings trembled feeling like an earthquake. Unfortunately, many Lebanese citizens and some close friends that were 15 km away, suffered deeply that atrocity.
Living in Lebanon has never been that easy. After 50 years of wars and corruption, the people are suffering today more than ever! The Lebanese people are well known for their strength in rebuilding again and again. And we will never surrender!
We always wanted to have a state without corruption, with fair Justice, and a peaceful normal life for once! …At least for our children.
Thank you very much for all your kind messages. 
Stay safe and may happiness surround your families.

Wednesday, July 22, 2020

Skywalk Cayenne 6 XS

SKYWALK Cayenne 6 XS 

One of my favorite gliders was the Cayenne 5 XS! It was an awesome glider! A spicy but balanced feel for a C, precise handling, and very efficient in weak conditions! Simply a delight! I kept that glider for a long time enjoying it. It had a special feel and I’m sure the Cayenne 5 pilots know well what I’m talking about.
Now Skywalk introduced for 2020 another newer version. The Cayenne6. 
I have one in XS size ready for take-off.
The risers are very well made.  A system for steering with the C risers. A new cloth material (TX light ) Skywalk says that it is a unique combination of polyurethane and silicone coating that makes the fabric extremely resistant to the aging process.
In this test, I will compare the C6 mainly to the C5 and will state the differences. I did fly it against the latest C’s and my C comparison is already updated. 

Take off at 95 all up on the XS is really easy, even in no wind. It inflates rapidly. 

First thermal, and first turn….The cayenne 6 turning abilities are very far from the excellent Cayenne 5.  The Cayenne 6 has a slightly longer brake travel, but without a prompt answer for the glider to core rapidly. So I opened my X rated 6 chest strap to +50.  Inside a turn, I had to lean well and brake in order to get that tighter radius! especially in small bubbles. 
 It was difficult to turn it sometimes really narrow, even with a wide chest strap.
After several turbulent and non-turbulent cores, I can affirm that the C6 is not as agile as the C5 was. In fact, it is not as agile as many C’s I have tested, especially in turbulent thermals. When conditions are homogenous, the turn is ok.
 That’s surely a Skywalk decision to deliver the glider with exactly that kind of agility.  Perhaps many pilots would favor it. It is a matter of personal preference. 

The climb rate in weak is good but I didn’t feel it as good as the C5. However, the climb in strong air seems slightly better.  
 The difference between the C5 XS and the C6 XS in weak thermals is that those excellent spicy movements that were on the C5 are completely erased on the C6.  Onboard the old C5, I was able to feel every bit of lift and the leading edge would bite them efficiently, and that was coupled with superb handling. On the C6 the pitch movements are nearly absent, and the information about the air is highly diminished.  
In strong air the C6 could be considered as moderately comfortable for a C, with some sideways movements sometimes, but not really annoying. 

Please note that it is important to know that comfort for a good pilot is always related to a good handling glider. I mean if there’s a dynamic glider but highly controllable on the brakes and with very good brake authority! Then this glider would be considered as comfortable enough for any stated category considering the level of the pilot, as it can be placed exactly where the pilot wishes. 

But if that glider won’t deliver a swift brake authority, then it is up to the conditions to place that glider in turbulent air and the pilot must work harder on his weight shift and insist on the brake controls to place and kept it above his head, or to put it in tight cores… Unfortunately,  the C6 lacks that direct handling that was available in the old C5.
Saying that the C6 remains more comfortable to fly in strong air than many “high” C’s. 

The gliding facing the valley breeze is very good for the category. The glide angle is much better than the Cayenne 5. It seems to surf the air more efficiently. In that matter, I felt that the Cayenne 6 could be inserted in the top 5, gliding C machines. It seems that the C6 has a nice ability to surf the airmass efficiently and move forward while gaining height in lifts. 
The C6 is slightly faster than the already fast Cure 2 at trim speed, but the Cure 2 has 1-2 km/h plus top speed.  The top speed on the Cayenne 6 is easy to reach with a moderate to light pressure.  
The C steering on the C6 is probably one of the best that I found on the C’s that resembles the Delta 4 one. The controls are smooth and the pitch control is highly efficient for a 3 liner! Good point here.

The ears are stable and efficient. They reopen slowly without pilot intervention. 

Conclusion: 
After the Tequila 5, here is another glider that follows the same pattern. The Cayenne 6 feels mellower in the way it informs the pilot, have less sharp handling and agility than the Cayenne 5, but with an overall increase in gliding performance over the C5 at trim and at full bar. The latest Skywalk gliders seem to share different concepts.  My personal wish is hoping that Skywalk won’t lose the excellent feel and feedback of the Chili 4 when they need to replace it. 
Everyone has his own preference.  That is why, test flying the Cayenne 6 is the best way a future buyer could do, in order to get a more personal idea. 


This is only my opinion. Make your own !

Thursday, July 16, 2020

PHI Allegro M (75-95)



 


























The Allegro is the new 2020 
EN-C glider from PHI.


















The Allegro is a semi-light glider, and launching even in nil wind is very easy. In stronger breeze Its as easy for a C glider.

I flew the Allegro in two sites, one at 800 ASL in moderate conditions, and on another site at 2600 m in strong conditions. I flew the WV, X-rated 6 at 92 all up.
I also flew it at 87 and found also that it flies quite nice at that weight! while keeping the homogenous structure.

The Allegro doesn’t seem to dive in turns when applying brakes in thermals. The turn inside the thermals can be described as an efficient, flat turn with excellent coring ability! It can be turned really tight inside the core!
The Allegro has the ability to let you make a stationary turn! So it's an agile C glider!
The brakes are relatively light in the first usable part while being precise with a linear feel. I just shortened them by 2 cm while keeping the 11 cm gap before the trailing edge reacts.
The Allegro enters in moderate thermals smoothly, without any pitch back. In stronger cores, the Allegro surges up really quickly! There are no useless movements that come from the glider even in strong air. I felt a certain high degree of safety under the Allegro while being not too dampened as my latest tested C glider. For example, the Delta 4 delivers more comfort and sometimes too much comfort! Everyone has his own taste for feedback. I personally would choose the Allegro for that feedback and felt! Simply excellent! Many of you readers know that I did church the Q-Light S for its handling. Now I’m an Allegro addict! Smile


On the Allegro, I was getting the right feel of feedback for an enjoyable flight even in turbulent and strong air. The Allegro moves in the air and let you understand every little detail, but with no excessive and useless movements. All those nice movements are coupled with a very efficient brake authority.

In the Cedars spot, I pass many times on the lee side with a dominant upper wind, just because it is sometimes the only way to get through those sections. With the Allegro informing me of all that’s going on, I was accurately placing it in the airmass with the brakes. Superb authority! I will say also that at all times, the Allegro stayed well inflated, and never a single cell collapsed. Only when I really was in some spaghetti stuff, a little tip finally whispered in my ear ”you’re deeply in the wrong place!”
I have to add also that the inside structure seems flawlessly homogenous. I didn’t feel any distortion or any snake movements in strong air.
The allegro is a dynamic C glider if you throw it around on wingovers..etc…but in XC flying it stays well above the pilot's head while informing about the air.

I flew the Allegro next to the Cure 2, and the Delta 4.
The climb rate in weak conditions is good, as I was always able to float and wait to catch the next stronger thermal. That feedback I was writing about, will save many pilots in weak air. The leading edge enters any lift without a back pitch. It feels like you are being slightly pulled upward and to the front.
In stronger thermals, it climbs really well! The allegro surges upward very efficiently in rising air.

In XC flight, the Allegro seems to surf the air quite well. When facing the valley breeze, it seems to cut through with the same character as the Maestro 21, but with more gliding into the wind.

Doing some glides at trim speed, I saw that the 6.0 Aspect ratio Allegro glides as good as the Cure 2, and super close to the Delta 4. At the full bar, the Allegro, and Delta 4 seem to have the edge in a similar glide angle!
The allegro M has a 15 km/h speed over trim, and at top speed the glide is amazing! The structure of the Allegro at full bar doesn’t seem to be affected. It just stays as solid with no visual fluttering of the cells.

My C comparison is updated for the little details if needed,

https://public.tableau.com/profile/ziad.bassil#!/vizhome/C(shrinked URL)rComparison/CGliderComparison

but I have to say that any pilot on the Allegro, and all the above-mentioned gliders, will surely make some nice and serious XC flights.
A pilot upgrading from the Maestro will find the Allegro a super easy C.

Ears are stable, efficient, and reopen quickly. They do not stick.

Conclusion: The Allegro with only 6 aspect ratio, delivers nice agility, a very good authority on the brakes, excellent gliding performance, especially at bar! Good in climbing, while having a large passive safety for a C.
I think a good pilot upgrading from a full season on the Maestro will experience a good evolution on the Allegro if he needs to upgrade.
I needed to find some minuses as many pilots commented that lately I only write good reviews…!
I searched to find any minuses…but I didn’t…sorry Wink Please do find something on the M size and pointed out!
Now Hannes must change his famous sentence (my specialty is the B category)! With the Allegro EN-C coming out, I think many of you will back me up after test flying that beautiful machine! Wink

Two videos soon Wink

Cheers,
Ziad



Saturday, June 20, 2020

GIN Genie 3 Light M




The new Genie 3 light harness has arrived finally. I ordered the M and the L size. I’m 1.81 cm, and 75 kg.  I tried the M size at first. 

The construction and details on this harness are amazing. I like the nice whole grey color! It changes a bit from the common black. The cloth used seems sturdy, and very well made. It does share the same construction finish with the latest Race 4! 

There's a pocket lower than the seat board that I could fit a 3 L ballast. The back compartment could fit a +10 Liter stuff and has a tie on the top. I didn’t touch any adjustments! All was fitting fine. There is a left small pocket for the relief tube. Underneath the cockpit lies a sharp cutter for an emergency. The cockpit itself is well fixed and has a high edge for preventing the sun to flare on the instruments. 
I didn’t see anything unusual to mention. It seems very well done. 
In the air, I could easily fit my self in the pod. 

The chest strap is similar to the Race 4 and is very easy to adjust in the air. 
Harnesses and tests are very difficult as we all have different height even with close weight, we don’t always share the same physical geometry. Longer or shorter legs, longer upper body…etc… That’s is why trying for yourself a harness is very important. The test can give you 50% or what to expect in body comfort and around 90 % in terms of roll comfort, and weight shift. 

The Genie light 3 has a seat board.  I personally found that the factory pod adjustments fit me exactly without any change. The back comfort of this harness offers good support and my legs were ‘naturally’ supported laying in the pod without any pressure at all. 
I adjusted the chest strap to around 46, 47 cm between carabiners, as I was lately test flying the Delta 4 MS which was earlier flown all the way with my X-rated 6 harness. 

Today, I took the Genie light 3 with some ballast to achieve 92 all up, and flew the same Delta 4 MS. To my surprise, the harness geometry of the Genie 3 light offered me an incredible turn inside the lift that I didn’t experience it earlier on the X-rated 6 I’m used to flying! The Delta 4 seems to turn even better and with more flying pleasure!  In the past, I flew several models, and I was very pleased with an old flight design sitting harness for its nice authority on the weight shift! Another good sitting harness that I regularly use for fun flying and soaring in an independence freestyle harness that offers also a very good roll. 
It that matter, I found that the Genie 3 light offers in fact a stable roll, but with a good balance for weight shift. The only harness that had this feature to my experience, was the GIN race 2! That was some harness! Every glider I test flew back then, with that harness changed from moderate agility to good agility!  I think the GIN Genie light 3 shares that amazing ABS geometry. 
I spent all my flight enjoying every moment on that beautiful weight shifting harness. 

The differences that occurred between the Genie light 2 and 3 are Practically everything…But the most important for me are: Better sitting back comfort, legs are naturally supported, more aerodynamic, nicer weight shift, fewer roll movements for the Genie light 3!  

I will try the L size, just because I felt that I have probably my shoulders slightly higher than usual. So, I’m waiting for the L size. 


https://www.gingliders.com/en/harnesses/genie-lite-3/

Friday, June 19, 2020

Niviuk Peak 5 22




Niviuk Peak 5 22 

I flew all the peak range from the first edition which had an amazing climb rate, the second was fast for its time, the 3rd no comment…The 4th was easy joyful accessible and a good performance package. 
Here is the 5th version with 7 AR and D certification.
The launching of the Peak 5 at 97 all up is really easy for that aspect ratio. It has a moderate rise even in nil wind. And the pilot can easily be controlled overhead. 
With my usual X-rated 6 harness, at 97 all up, the Peak 5 has a fast trim! Faster than any D available today with around +1 to +1.5 km/h faster forward speed.  Pushing the bar will allow the Peak 5 to reach around the 60 km/h mark with ease. 
I have flown that glider in weak, moderate, and turbulent conditions. At trim speed controlling the Peak 5 with B risers in turbulence needs some time to adapt as they seem light and not ‘connective’ as the other 2 liners I have tested.
 The B’s are lighter than the Zeolite, OXA3, Zeno, Leopard, Zeolite, Meru. 
 I’m not an engineer but I can feel that there is some force or pressure moving out to the front of the Peak 5 at trim, and the more I pushed the bar, the more this pressure or force is moving forward, and the less the B lines are in tension. 
The B’s control seems to have that light but spring feels, that spread horizontally.
I took my time when I had the chance to fly it, to understand that control. I’m still in the process. 
I also felt a bit less pressure toward the tips. 
At full bar, the B controls become even more light. The B’s at full bar are a bit floating. I could catch some glider movements, but it seems that the peak 5 energy and pressure keeps the glider well tensioned, and only in big turbulence, I couldn’t manage to feel anything on the B’s. Probably it’s just me, but it does surely have a much different approach than those 2 liners I already tested.  But I think that a regularly flying pilot on the Peak 5 will eventually adapt and understand these controls. 
The Zeolite for instance moves more in turbulent air. It dances all the time. But the brake authority puts the pilot most of the time in control as if there is some connection between the pilot reactions and the glider. I still didn’t find that connection with the Peak 5 yet…
The brakes were a bit long for my taste. So I shortened them by 5 cm. At full bar, there was still around 10 cm of a free gap. So there was no tension at all on the trailing edge when speed flying. 
The turning ability of the Peak 5 in moderate air, is nice.  It resembles the Meru in that matter.  Direct, agile for a 7 aspect ratio.  
In turbulent and strong air, the Peak 5 controls and authority will be slightly diminished, due to that extra power and “dominant feel” on the leading edge.  The Peak 5 dynamics within the structure and internal movements are more pronounced than the Zeno, Leopard, Meru, or Oxa3.  The Zeno felt more mellow, The Leopard and OXA3 felt more solid and compact, the Meru felt easier to understand. The Peak 5 needs time for adaptation, and will probably be much more user friendly. The Peak 5 I tested is a brand new one that my friend flew it a couple of hours. So maybe the lines could be more in place after +30 hours…I’m trying to cover all the missing links.  Smile 
Now for the performance part, I found that the Peak 5 has one of the best glides on all available D’s. The fast trim speed and the efficient leading edge when gliding through the airmass delivers enormous gliding power. I think this is the first D glider I have flown to have that much gliding efficiency!  
The climb rate in weak thermals is good, but climbing in strong thermals is really good…The ability to shoot up is really fast!   It looks like there was a volcanic explosion underneath, and the debris is going up fast toward you!   Really good in surges. 
I asked my friend who usually flies 2 liners since they had appeared, IP6, Peak 4, Zeno, Boom 11, XcTracer his opinion, and here are his comments:
Hi Ziad,
Here are my personal feelings after flying the Peak5 22 at 96.5kgs.
I’ve been flying mostly 2 liners since the IP6 ... Peak4, Zeno, Boom11, and Xcracer.
Take off is a non-event for this type of wing, goes up in one piece, good pressure, and very smooth.
I loved the handling, very linear, light, and pure Niviuk feel.
Performance is just crazy, felt at the same level as my Boom11, with an obviously lower top speed. Needs to be tested to be believed.
Trim speed is noticeably higher than other wings, but I was surprised it still has a great feeling working disorganized and wind chopped lift down low.
This wing climbs like nothing else, it bites into thermals and literally jumps up (sometimes jumps up crazy hard  Wink 
, But it always translates in lots of altitude gain.)
I had 2 tip collapses in the first 30 minutes but they totally disappeared for the next few hours in the air, even though the air got rougher... wing is very pressurized and solid, no other events but those 2 tip collapses.
Two things I did not like but would adapt to in a few hours:
B’s tension was light at trim speed and got lighter and lighter as I pushed the speed bar... something to get used to.
Not much info through the brakes, which some people like.
Crazy good high performance 2 liner but, in my opinion, needs a seasoned 2 liner pilot. 
Cheers, 
“Thank you, dear friend, for your honest opinion”
Back in my writings,  wingovers are super high!  Ears are stable and efficient! 
Conclusion:  
I’m posting here my personal feel… I think the Peak 5 needs more pilot level than the Peak 4. When flying in turbulent air, I wished for a more connection between pilot and glider ( in terms of adjusting the feedback that comes with the glider in turbulent air). 
There’s also the light B controls that I really wished a bit more feel and connection at bar…
Beside that…Its a really super machine! Super glide! , an excellent climb! quite fast and efficient! … If anyone wishes to win races on a D, the Peak 5 is the golden key, but for the emphatic and wholehearted! 
Cheers,
Ziad





Friday, June 12, 2020

Gliders and the endless search.


Hi, 
I need to share with you a bit my thoughts about the new models.
When new gliders come out in the B or C category, lots of pilots focus only on the latest models. Sometimes those models are good, but that doesn’t mean that last year's model is to be forgotten!
Or out of the equation. 
This is a very important detail, that many pilots think that if I have this new and latest model, I will do better flights! 
IMHO, that’s totally wrong, and to think that way, and follow the latest glider only, just by thinking that is an evolution for personal better flying is a big mistake many pilots do.  Of course, a better pilot will always evolve with a better model, but that is only achievable when that pilot has extensively flown his model with nearly everyday use. 

Sometimes 2 years older models could suit your flying preferences better!  One day, I had a discussion with a big manufacturer that said to me that after two years cycle, pilots don’t buy our models anymore, despite that some models are still very competitive and complete. 
Technology, research, and development are not limited by time, in a two-year cycle for example…Sometimes, it takes a year, and many times a good evolution takes 3-4 and even more…I think if we do need advanced technology, maybe we should reconsider our way of thinking about not pushing the R&D departments for a limited 2-year release. But that’s just my personal humble thoughts…

There’ s also an issue when a new glider comes out. For example, let’s take the latest Rook 3 as a B and the latest Delta 4 as a C.  They both are new and happens to be very good gliders. 
But that doesn’t mean that the other B’s from other manufacturers need to be forgotten now! For example in the B category, Rush5, Swift 5, Mentor 6, Iota2, even the Chili 4 from 2 years ago, are still at the top of the chart, and either glider can get any good B pilots for an epic XC day!  
The small differences that I found are not that important and won’t have an impact on a good B pilot. 
In the C category, the Delta 4 is a good C, but we don’t have to forget the latest Flow Fusion having a hybrid construction, with very good gliding performance, and still very comfortable in that category. There are also the 2-year-old Queen 2 and the Q-light, that delivers impressive performances, the Trango X-race, etc...and lots of other C’s that can deliver the needed requirements, and flying them is definitely not an excuse for not doing long XC’s. On the contrary, when a pilot is with a symbiosis with his glider, big opportunities will appear! 
 Many good pilots have made more than 200 Km on an A glider 10 years ago!  Imagine the potential you have in today's gliders. 
it is possible to go XC on any model if the right combination of the day's conditions and the well being of the pilot is a 100% match and that’s the most important IMHO.  
Happy flights,
Ziad 

Tuesday, June 9, 2020

OZONE Zeolite GT MS


OZONE Zeolite GT  MS

The original Zeolite was used in the latest X-Alps. Ozone released a little sturdier version, but still quite light as it weighs 3.5 kilos, the Zeolite GT.
The Zeolite GT is a 2 liner, with a little wooden handle on the B’s.
Launching the Zeolite GT at 93 all up, in nil wind is very intuitive. The glider inflates well, and fast. I think it reacts like any C glider in terms of launching. In strong air, the brake authority is present to stop the surge. 

The brake pressure is on the moderate side. Firm brake pressure, linear handling, and very good authority for a 6.7 AR glider with very few lines! Turning in thermals is quite nice on the Zeolite GT. A very good authority on the brakes that enables its pilot to have a direct response and feel. The turning behavior is surprisingly nicer than the M7 for example, in homogenous conditions. In turbulent conditions, the authority is still present but the Zeolite movements are quite pronounced, and the work on the brakes is to keep it overhead and turn later… The Zeolite never collapsed on me, not even a tiny tip! I felt it is well pressurized!  
The Zeolite GT is like a beautiful very happy Brazilian lady, dancing the Samba all the time! And sometimes in turbulent and strong air, I was a bit concerned, why is she so happy and I’m not ;-)  Seriously, it’s a very nice machine, but talks too much!
I have to add that those movements are due to that special internal light structure. The heavier Zeno doesn’t talk as much in turbulent air.  

The climb rate of the MS at 93 versus the Climb rate of the M7 MS at 93 is on the Zeolite GT side! It climbs really well!  Sometimes in headwind conditions, it seems to slow a bit before entering the thermals. So I found that better not to touch the brakes in that matter!  and to leave it fly into that airmass. Or accelerate a bit.  Just because a very slight pull on the brakes, gets the Zeolite a bit slower. 

Doing some glides with the M7 MS showed me that the glide at trim in moving air is on the Zeolite side as it floats a bit more. Pushing the first bar is also competitive, but at the second bar, I think it stays like the M7.  I felt that the full speed of the Zeolite is similar to the full speed of the M7 with the same loadings.  I can place the Zeolite between the M7 and Zeno in terms of performance. 

The pressure on the bar is moderate. The most amazing feature of the Zeolite is the B handles.  At trim or at bar, the B handles works beautifully on that 2 liner! I could steer the glider in all conditions with the efficient B handles. They stop some serious surges while on bar. If I can describe the feeling, I could say that those handles look like driving a Kart!  
Ears must be pulled from high up. They are hard to pull, but when they fold, they are stable. They reopen with pilot controls. 



Saturday, June 6, 2020

Ozone Delta 4 MS & ML

OZONE Delta 4 ML and MS 

And here’s the new EN-C from Ozone.  I had two Delta 4 for testing. An ML that I flew at 101, with lots of ballast, and two pizzas, the MS size at 92 all up with just one ‘croissant’  ;-). 

Launching the ML and MS at their respective weights is pretty direct. Probably it rises slightly less than the D3, but nothing worth mentioning. Little lazy, no surge, a relatively moderate to launch C.


Usually, I fly smaller sizes, and when I fly the bigger ones or the Medium ones, I feel that they are too dampened compared to their little sisters…In-flight on the ML size, on a strong and turbulent day, my flying buddies were all over the place with hands going down and up, and wings getting tossed around, and I thought I was just sitting alone among that chaos, sipping a cup of tea!  Really…the Delta 4 in ML size at 101- 102 is super comfy to my taste! Not boring at all but solid, smooth, and super homogenous.  
The gliders that were around, were the Cure 2 M (75-95), the Flow Fusion M (85-105), and later the LM7, MS (75-95), and some other B’s. They seem to be doing some sports workout!  

Anyway, the brake authority on that ML size at my loads are super nice! I was amazed that this ML size would turn quite nicely! Used to feel that bigger sizes feel like bigger ships to turn, but no, that Delta 4 ML has a very nice coordinated and smooth turn, with very good agility. The climb rate is really impressive on the ML!  After many times, I felt that I had an edge over all the mentioned gliders in the air!  In weak, and especially in sudden thermals. The D4 shoots upward quickly. 

Doing some glides with the Cure 2 M, at trim, showed me after many attempts that theD4 ML has an edge at trim and a large edge at full bar!  Gliding next to the Fusion M  showed that the Fusion had a slightly faster trim speed, but when matching the Fusion trim speed, again, I felt that I had an edge at trim, and a large one at full bar! 
So it was preferable to see that ML size with the LM7 MS.  My friend flying the MS is a good pilot, and we glided over 10 KM, three times, with him pushing the bar all the time. On the Delta 4 ML, I could always be on his wingtip, with a slight edge for the Delta 4 ML in lifts! 
It was very impressive to see that easy to fly  D4 ML (6) aspect ratio, EN-C,  at full bar has nearly or similar glide angle as the LM7 size MS!  Many climbs and glides were made with the same results. I know the LM7 was a size smaller than the D4 ML. It was only to give an idea about the overall performance.
Ears are stable a bit if you don’t pull much. They lock if you pull them once slightly. Just like the Mantra 7 ones. Not really super-efficient, but ok.

Three days later, I received the Delta 4 MS size (75-95). 
Launching the Delta 4 MS, at 93 all up in very dry and turbulent air, showed me that there is a large difference in roll feedback with the bigger size. I couldn’t get a cup of tea, but able to talk on the phone 😊 . The roll movements are more present than the ML size, the pitch movement is still very stable. 
My friend on his Cure 2 M commented that the air was super rowdy and barely acceptable. The D4 MS was quite manageable with a high degree of comfort.  The structure is very homogenous and solid, especially  (if it is well loaded! ) 93 all up was ok.  
The handling and brake authority are much better to my liking now. The Delta 4 MS at 93 is an agile glider.  I could place it in that turbulent air exactly where I wanted after getting hammered with some instant powerful thermals that lasts two seconds…Getting through and inside those nasty narrow lifts was possible on the D4 MS.

Now comparing with the same sizes as the D4 MS ( 75-95).
Climbing next to my friend on his Cure 2 M (75-95), with the same loadings as mine now, showed me that in strong air and powerful thermals, the D4 climbs upward again, quite rapidly! At the end of that day, when thermals were very weak, they both could float next to each other, and it was super difficult to tell if either climbs better or float better. Anyway, my C comparison will be updated for those tiny details if needed. 

Doing some long glides next to the same Cure 2 M, (they have the same trim speed), showed me now that the D4 MS size has a slight edge in glide at trim and the difference is smaller than I got on the ML size.  
For instance, the difference at trim after a 5 km run is only around 5 m difference for the Delta 4 MS, but when we applied full bar, the difference became bigger for the Delta 4. 
The D4, MS has a good edge and an impressive glide angle at full speed.  Now at full speed for both, and overlapping the pulleys on the D4, I was getting slightly faster top speed. Probably around +1 km/h… 

Comparing the M7 size MS to the Delta 4 size MS is really interesting. The gap is super small! Like perhaps the edge for the M7 is found when low facing the sea breeze and getting those tricky thermals, the M7 will have a slight edge in surfing through the airmass. Saying that the Delta 4 in that particular difficult place with shine flawlessly among C’s. It cuts through like the M7 but slightly slower and tamer. It will take its time to dig through calmly. Ozone has strongly narrowed the gap between the Rush5, Delta 4, Mantra7!    

Racing the Delta 4 at full speed in turbulent air, and steering with the C risers is quite efficient, as I was able to clear most of the pitch and roll by the smooth and easy to steer C risers.  Like I said, with that easiness in flight, and performance at speed, the Delta 4 will give the pilots a clear edge in sports competitions. The C riser controls have a moderate pressure and linear response, with very good authority on the profile. 

Ears' behavior is similar to the ML size. If you pull a lot, they will try to re-open,  A little pull will get them stuck and stable, with a moderate decent rate. Wing overs are a delight! Get quickly upside down! 
Conclusion: 
I was super lucky after the corona lockdown to test fly some amazing gliders.
I also have to add that the Delta 4 MS has a more subtle feel, and a little bit more communicative than the Delta 3 MS in showing and sensing a little bit more the airmass. That characteristic is enhanced over the D3 and it’s a good move from the R&D department. 

For the C category, what impresses me the most is when a manufacturer works on a moderate aspect ratio glider, like 6.05 for the Delta 4 and achieves an impressively complete package of feel-able passive safety, high comfort in turbulence, superb agility, with a pleasurable feel,  top-end gliding performance and fast enough for the C category! 
I’ll keep those new gliders coming through to see what could be more possible, and will keep one Delta 4 MS size as the new C reference.  
Comparing the same sizes:  Mantra 7 MS  VS  Delta 4 MS, will give a tiny edge for overall performance to the M7, but I think Mantra 7 pilots must watch out carefully, Delta 4 pilots on full bar !!   ;-) 



UPDATE:Hi,
I made a small mistake earlier concerning the Delta 4 ears.
When pulling the separate A riser dedicated for ears, the pulling is moderate and the ears are small, a slight more pull will get the Delta 4 MS and ML to try to reopen, but…What I didn’t figure out in the first place, is that the issue to get efficiency for stable is ears is to pull more A-lines!
So reaching out high, and pulling a little bit more lines will get the ears to fold in and stays stable. Sometimes if you let go quickly the line it will open with a bang. So pulling more line in will get stable ears and a good option for the descent. And in this configuration, when releasing the ears, they will open progressively. The last 8 cells from each side, should be open by pilot input.
And I also tried 2 lines per side. Pulling those 2 lines will get very big ears and pushing the bar, resulted at minus 4-5 m/s, with steady ears! Care must be taken when opening them. It’s better NOT to apply brakes heavily from both sides for opening that configuration. Best to apply little brake on each side separately, in order to get a bigger open area.
So my mistake earlier because my lack of information…sorry
A video showing them will be published soon.
Cheers,
Ziad





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