see: https://www.youtube.com/watch?v=QRqnSgK1-uc&t=552s and https://www.youtube.com/watch?v=zx4Ug5wJPyE&t=246s
I have here an EG YAK 55 SP converted to Turboprop power using a WREN 44TP. This excellent power plant supplies a perfect power match for this plane enabling vertical takeoff and all sorts of vertical maneuvers and the plane is amazingly quiet as well. It takes off and lands super easy as the wing loading is nice and low. I modified the canopy to be more streamlined and of course the motor mount is fabricated to support the TP which for a Wren is just a circular bore with 6 screws. I covered part of the LE of both wings with alu tape to dissipate the heat from the tp's exhaust as you can see in the videos. Also I had Tam from TamJets fabricate straight exhaust tubes so the hot exhaust gets a chance to mix with the airstream before it flows across the wing!
The plane currently uses a Futaba rx, if you don't want that brand, just deduct $100 from the price, the plane can be flown with any current radio system it has the following set up, elev=2 servos, rudder = 1 servo, ailerons=2 servos, turbine just needs 1 channel ( no servo). and the Gyro needs 1 channel too. The time on this TP is: 714 mins or 11.9 hours. I consider the mounting method for the Wren design to be superior to all other TP's out there. In this case all I had to do was bore out the existing gas engine firewall and add 6 blind nuts for the required screws. This also put the TP in the correct right thrust angle !!!!
Scale: 30% Wing Span: 88 inches Length: 82 inches (including spinner) Wing Area: 1463 sq. in. Flying Weight: 16 to 17 lbs Engine: 45cc to 60cc Gas Radio: 6 to 8 Channels Servos : 250 - 330 oz required
MFG INFO: Ohio Model Products is proud to introduce the new Yak SP-55M in a 50cc size! Designed after it's larger 100cc brother, this new Yak is sized for the popular 50 - 60 cc engines and weighs about 16-17 lbs ready to fly. Perfect for IMAC or Freestyle, the new OMP Yak 55 offers everything you want in a giant scale aerobat including great looks! Covered in genuine Ultrakote, it comes with premium hardware, composite landing gear, carbon fiber wing and stab tubes, carbon fiber reinforced wing and fuselage spars, pre-hinged elevators and ailerons, and a real manual written by OMP.
Check out these Features: Carbon Fiber Wing and Stab Tubes