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SAPAC composite L-39 Maiden

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Published on Dec 5, 2010

Maiden on a cross-wind day.
Powered by SAPAC MB1 fan/motor combo, BlueLipo 3300mAH 30C4s battery.
Using HobbyKIng retracts and suspension landing gear
It is my first:
- fiberglass plane
- air retracts
- plane with flaps
I need to take it easier on the turns when flaps are deployed. I almost lost the plane because of that.

Comments • 9

Victor Hugo
Beautiful plane and excellent flight. Congrats. What is your CG location?
Klemens Koza
is needed for this model one aileron gyro? I build just the same! Greetings from Austria Klemens
Klemens Koza
many thanks for the info, I'll make it so, Klemens
swachito
Very very Nice marceloddd... I have the same plane in my wish list, I just wondering wich of all hobby king retracts do you used? can you give me the tip? also wich servos do you use? thanks a lot!!
marceloddd
Hi Klemens, No gyro required. Mine has a tip-stall tendency (most do) and that is why it almost crashed. You have to get used to keep it moving fast and don't do tight turns. If you point both ailerons 2-3 mm up, it will reduce the tip-stall tendency and be less likely to drop a wing in flight or landing. M.-
marceloddd
Hi Swachito, I used the following: 7075 Alloy Shock Absorbing Strut Set (product 11300) Micro Pneumatic Retract Landing-gear set (product 7701) I used HXT 900 for all but the rudder, where I used a metal gear servo, as it is hard to get to it.
marceloddd
@jbfoamies Hi Jacob, Thanks. The Sapac Viper is also very nice. Both take some time to build. M.-
marceloddd
No problem so far. The plane has been out of service for repairs for some time because a failed take off due to a bad battery.
Nelson Yu
How did the HXT900 servos hold up? I'm building a SAPAC and am curious. Otherwise I'll go with hs65s. Thanks.
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