The key to life is not accumulation. It's contribution. Hands that serve help more than the lips that pray.

Tuesday, May 10, 2011

Mantra 4 MS @ 93 all up

I have an MS available now @ 93 all up ,and it seems that it resembles the ML @ 102 .It has the same feeling in the air .It is a bit floaty and efficient in weak thermals as the glider always continue to bite in the thermal (nice feeling) .The handling is the same as the ML. I was hoping for more dynamic response,but it felt exactly as the ML ,may be just a very slight increase in brake pressure and same reactions to maneuvers.
The ears are quite usable ,because you could loose some heights,and if the accelerator (also soft and smooth) is induced ,the rate efficiency is improved,with also stable ears.

360's are easy to start and i found a stable spiral and efficient descent rate without being too much centrifuged.

In "some" + 4m/s turbulent thermals,i found that it needed just a bit to settle ,just before i could steer it wherever i want inside the core.Some gliders would accept even when i lean on the harness to began to change their course .May be also the M4 would be better with a more roll responsive harness,as i have swamped the Impress2 with another old lower attachment points,and found that the handling improved a lot. (have to try)

I did shortened the brake lengths of the ML and the MS by (- 2 to 3 cm) and it was better in a coordinated turn.

The stall point is reachable "far" in the brake lengths, just below the hips, but could be heard in finesse just before it goes into a spin.

Have to be from 90 to 95 all up to benefit and extract its performance and feeling.

Landing is easy as you can slow it down a bit ,just like the O 8 25 ,may be +1 km/h in stall speed,but could be landed in a narrow place after a bit of training.

Overall i liked the MS, (personal taste) preferred a more sharp and direct brake response,but its glide ratio , easiness ,and comfort in flight ,largely filled the EN-D pilot requirements menu :-)

Tuesday, April 26, 2011

Mentor 2 S & Sprint Evo S, & Rush 3 M

Mentor 2 S & Sprint Evo S, & Rush 3 M

Most easy to fly:
1-Sprint EVO
2-Rush 3
3-Mentor 2

Climb rate in weak conditions .NO head wind (<0.2m/s)

1-Sprint EVO
2-Mentor 2 =Rush 3 if equally loaded



Climb rate in weak conditions with 15 km/h head wind and thermals (<0.2m/s)

1-Mentor 2 S (Efficiency showed)
2-Rush 3 M (have to be loaded)
3-Sprint Evo S ....


Climb rate in strong conditions:( With strong valley breeze)

The Rush 3 (loaded) and the Mentor 2 S have a good climb ,but i sensed an efficient forward thermal bite for the Mentor 2 as it can fit itself inside the core better .The Sprint evo will struggle a bit in strong valley breeze.

Climb in strong thermal (No drift) .. I wish all thermals are like that Wink

All are equal in climb with the tendency of the Sprint Evo to stay inside the stronger part of the thermal,and could have the edge in those particular conditions.

Glide in calm air :
1-All very close


Glide in turbulence and head wind (Equally loaded)
This was done after many flights (now I am more convinced)
1- Mentor 2
2- Rush 3 (Should be 90% loaded to achieve good results)
3- Sprint evo


Overall efficiency in racing upwind:

1- Mentor 2 S
2- Rush 3 M
3- Sprint Evo


Glide at second bar in turbulence and head wind:

The Rush 3 and Mentor 2 are equal if there 's a little head wind ,with a stable profile for the Rush 3 at bar. The Mentor 2 seems more efficient when the head wind is blowing.It can cut through with ease.


Conclusion:

I have spent 3 whole days taking off and landing and swapping gliders, to determine what glider is the most suitable for all conditions. It is the best way to find what glider can get through those same conditions better.
The 3 are excellent gliders, The Evo has a very nice handling, the Rush 3 has a soft feeling underneath it. Pilots looking for performance and handling in a mild way will love those two. The Rush 3 M has to be loaded to cut through head wind. The Evo has a big profile that doesn’t penetrate the strong head wind like the 2 others.
The Mentor 2 S still has the most sharp and precise handling, with “usable” performance in all conditions, no matter if you have a head wind, strong thermals, the Mentor 2 S @ 95 will cut through nicely and powerfully. It does have more roll response than the two others, and feels exactly like a high end EN-B glider, but for a good EN-C or D pilot, it is the cherry on the cake. Efficiency at its best in the EN-B cat.