Full Size Printed Plan vintage 1999 Control Line Combat fast or Slow "Gotcha Psycho" lots of state‑of‑the art features


Full Size Printed Plan & Building Notes

No material plans only

Gotcha Psycho

Two generations of competition expertise and devotion produce an outstanding Nats Combat winner. Can be built for Fast or Slow.

Full size printed plan on a sheet   44” x 34”

Nine page article with building notes

For those wishing to build a kit Please contact

The Core House 34 Sweet Arrow Dr. Hummelstown, PA  17036 phone: 717-566-3810         

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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