Wing Span: 42"
Wing area 385 sq. in.
Weight ready to fly 18 oz.

This aerobatic plane was is a scaled up version of the 32" Yak-55. Due to the larger size the design was modified as necessary to handle the additional weight and flight loads. I am happy to say that I was able to keep all of the good flying characteristics of the smaller Yak-55 with out sacrificing anything. Now we have a plane that is an EPP counterpart to the outdoor depron aerobatic planes and can use the same gear.

More details can be found on the 42" Yak-55 thread on .

Here is a set of for building a 42" 3D plane.

Here is a that shows the Welders hinge technique.

The kits come with a hardware pack that includes the spar and pushrods. The other required parts are listed below.

Recommended parts:
10x4.7 props
50 gr motor
18 amp speed control
Plywood motor mount
9 gr servo X 4
Control horns
3s 1100mah battery