The EPP YAK 55

A 32" wingspan aerobatic slow / indoor flier

This design was built in early Dec. of 2008, and first flown on December 12th, 2008. This web page was started on December 12th, 2008, and last updated on January 10th, 2009. Thanks for visiting!

Above: The YAK55 EPP as finalized, with all rear fuselage anti-twist bracing in place, and the Doculam wing skin overlays in place- flying smoothly and handling great!


Wingspan = 32"

Wing area = 233.6 Sq. In.

Overall Length (without motor): 30"

Horizontal Stabilizer span: 13"

2 HXT500 servos for R&E, HXT900 servo for ailerons

Corona RS410 receiver

24 gram brushless motor, 1300 Kv

ESC: Turnigy Plush 10A

Battery : 2S Zippy Rhino 460 mAH LiPoly

Propeller: APC 10x3.8 electric prop

Flying weight 6-3/8 ounces

Wing Loading = 3.94 ounces per square foot

1mm CF rods used for all spar pairs and control rods

6mm Depron used for Ailerons and rudder; 6mm EPP for the rest of the structure


Above: This is the modified receiver antenna, made into a 'base loaded' antenna. It is working well on 5 of my aircraft now.

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This web site and all of the digital photos and other original materials found here are subject to protection under the Copyright laws; All rights are reserved by Bruce K. Stenulson, P.O. Box 69, Fairplay CO. (c) 2004-2009. Permission is granted to link to this web site or to it's individual pages, but not to reproduce any materials found here for other than personal, non-commercial use. My intention is to maintain the context within which this material has been presented.Thanks for your understanding.