Edition: Model Aviation - 2009/08
Page Numbers: 133

P-40K

Overview

A classic World War II fighter for Stunt

The Curtiss P-40 Warhawk represented the classic American fighter aircraft at the onset of WWII. When the AVG (American Volunteer Group) painted a shark’s mouth on it, the P-40 became an icon.

Pat Johnston designed his P-40K to retain the charisma of the full-scale fighter while incorporating tweaks that lend themselves to control-line (CL) flying. For example, the wing employs sweepback in the leading edge and forward sweep in the flap hinge line, producing a wing with the correct P-40 proportions.

Pat built and flew the P-40K with a .60-size two-stroke engine; however, a smaller .46 or .53 would also work. He recorded the model’s flying weight at 61 ounces and the wingspan at 59 inches. According to Pat, the P-40 is great for fun-flying or competition, and he achieved his highest personal Stunt (CL Precision Aerobatics) score with it.

This design was the subject of a construction article published in the August 1999 issue of Model Aviation (MA). Members can access the magazine’s digital archives on the Academy’s website to read more.

Specifications

  • Designer: Pat Johnston
  • Inspiration: Curtiss P-40 Warhawk
  • Power: .60-size two-stroke (recommended); .46 or .53 also suitable
  • Flying weight: 61 oz
  • Wingspan: 59 in
  • Best use: Fun-flying and CL Stunt (Precision Aerobatics)

Ordering / Plans

Transcribed from original scans by AI. Minor OCR errors may remain.