
After WWII, George Robertson, worked for aircraft designer/builder John Thorp. Thorp had designed the Lockheed Model 33 Little Dipper also known as the Air Trooper in 1944. Only one example was built and flown before the program was cancelled.
After WWII, Thorp designed the Thorp T-211 Sky Skooter and allowed his employee George Robertson to manufacture extra parts and convert a T-211 back into a single seat aircraft to replicate the original Lockheed Air Trooper. This aircraft is actually a Robertson Sky Skeeter.

Original powered by a Lycoming 0-145 engine, the aircraft was restoration by Sorrell Brothers in 2005 and the engine replaced with a TMX-O-200 Continental. A sliding canopy was installed at restoration.

The airframe had reached 129.5 hrs TTSN, 45 hrs since restoration.
Engine: Continental O-200
Propeller: Semsinich Wood Prop Model# W72 GK449