37.5% "Red Bull" Yak
Here's a photo of Scott Shoemaker with his Red Bull Yak
at an IMAC competition at Prince George Radio Control club
in Bowie MD. Scott finished 2nd in the Sportsman Class.
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Plane
Details
This is a 37 1/2 % Yak Level 1 (lots of work) kit by 3W. The fuse and
cowl are a composite construction, and the wing and tailfeathers are
balsa sheeted foam. It weighs about 38 pounds and has a wingspan of
120". It has a DA150 for power with MTW canisters. It swings a Carbon
Fiber Mezlik 32-10 prop. For control there are (14) JR8611a servos,
which have 333 ounce-inches of torque, each. The "brain" is a Powerbox
40/24 "Champion" with Servo Matching Control Programmer and switch. For
power there are three Fromeco Peerless Lithium Ion batteries, with each
one having 4800 milliamp-hours capacity. The control horns are from SWB
and the control surface hardware is all Dubro. Paint is Dupont
Automotive Chromabase Pearl Blue and Silver with Clearcoat. The custom
graphics came from Kirby Kustom's. This winter we hope to add a
removable smoke system as well as flames and a few more graphics to the
cowl. It burns high octane gasoline mixed at 100:1 with Amsoil Saber
Synthetic 2-stroke oil. The spark is controlled by a Fromeco adjustable
regulator. |