Digital full size plans on Cd Control Line Combat fast or Slow Gotcha Psycho
Description
Digital full size plans on Cd
Not a printed plan and no material supplied
Gotcha Psycho
Two generations of competition expertise and devotion produce an outstanding Nats Combat winner. Can be built for Fast or Slow.
Digital Full size prints on a sheet 44” x 34”
Digital Nine page article with building notes
Bonus several articles on building model airplanes files are PDF, and JPEG
Control Line Combat fast or Slow
Wing span 48inches
with optional Ups 54inches
Fuselage length, Slow version 24inches
Fuselage length, Fast version 173/4 inches
Wing area, main panel 504 square inches
with optional tips 550 square inches
Total weight 21‑22 ounces
Wing loading 2.3‑2.5 ounces per square foot
Engine required .32 to .35 two‑stroke
By Phil Cartier
Combat requires a bit of luck, a lot of skill, and quick reflexes. My son, Alan, used all three to win the Nats in 1998 with this plane‑a bunch of kills, a couple of airtime wins courtesy of the pit crew, one loss, and no midairs makes for a very successful performance. The Gotcha Pbycho did its part, keeping up very well with the Nelsonpowered planes and outflying most of the ready-to‑fly planes. Combat planes look much alike in the air, but the Psycho has lots of state‑of‑the art features that help it outperform older designs like the Gotcha 500
The design features come under three headings aerodynamics, structure, and building methods, which all interact. Aerodynamically, we finally went with the popular rounded wing tips. Most importantly, after building a couple of test planes I was able to document about a 2 mph improvement in airspeed, probably due to decreased drag. It amounted to.2‑.3 seconds in a seven‑lap half mile speed run.
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