Miniature Engineering Museum:
Powermax PM5-1 Radial Engine, First Prototype by Glenn Hargrave, Ireland, 1974
Miniature Engineering Museum:
Powermax PM5-1 Prototype Radial Engine by Glenn Hargrave, Ireland, 1974 (rear view)
Miniature Engineering Museum:
Technopower 1/4 Scale Radial Engine Prototype by Wally Warner, IL, 1983
Miniature Engineering Museum:
Technopower 1/4 Scale Radial Engine Prototype, Designed and Built by Wally Warner, IL, 1983
Miniature Engineering Museum:
Technopower 1/4-Scale Radial Engine Prototype, Designed and Built by Wally Warner, IL, 1983
Miniature Engineering Museum:
Powermax PM5-3 Radial Engine, Third Prototype by Glenn Hargrave, Ireland, 1975 (Rear View)
Miniature Engineering Museum:
Powermax PM5-3 Radial Engine, Third Prototype by Glenn Hargrave, Ireland, 1975 (Rear View)
Miniature Engineering Museum:
Technopower 3 Cylinder Radial Aircraft Engine Prototype, Designed and Built by Wally Warner, IL, 1981
Miniature Engineering Museum:
Technopower 7 Cylinder Radial Airplane Engine, 1980s
Miniature Engineering Museum:
Powermax PM5-1 Advertisement by Polk's Hobby Store, NY, 1974
Miniature Engineering Museum:
Technopower 3-Cylinder Prototype Radial Engine by Wally Warner 1981
Miniature Engineering Museum:
Technopower .61 cu in and 1.0 cu in Prototype Engines, 1981
Miniature Engineering Museum:
Technopower 3 Cylinder Prototype Radial Engine by Wally Warner, 1981
Miniature Engineering Museum:
Technopower Three-Cylinder Prototype Radial Engine by Wally Warner, 1981
Miniature Engineering Museum:
Powermax 5 Model-Airplane Engine, British Production, designed by Glenn Hargraves, Ireland, circa 1976
Miniature Engineering Museum:
Technopower 7-Cylinder Radial Model-Aircraft Engine manufactured by Technopower, circa 1990
Miniature Engineering Museum:
3-Cylinder Technopower Prototype Radial Engines, by Wally Warner, MI, 1981
Miniature Engineering Museum:
Technopower 1/4-Scale Prototype Radial Engine by Wally Warner, IL, 1983
Miniature Engineering Museum:
Technopower 5-Cylinder Radial Engine, Large Scale, Dual Ignition
Miniature Engineering Museum:
Technopower 5-Cylinder Radial Engine, Large Scale, Dual Ignition
Miniature Engineering Museum:
Powermax PM5-2 Radial Engine Prototype, by Glenn Hargrave, Ireland, 1975
Miniature Engineering Museum:
Powermax PM5-2 Radial Engine Prototype, by Glenn Hargrave, Ireland, 1975
Miniature Engineering Museum:
Technopower Prototypes: Powermax PM5-1, -2, and -3 Radial Engines by Glenn Hargrave, Ireland, mid 1970's,
Miniature Engineering Museum:
Technopower 1/4-Scale Prototype vs The 1/5-Scale Standard Line of Engines
Miniature Engineering Museum:
Powermax PM5-3 Prototype With Box, by Glenn Hargrave, Ireland, 1975
Miniature Engineering Museum:
Powermax PM5 and PM7 Radial Engine Ad, Polks Hobby Store, NY, circa 1974
Miniature Engineering Museum:
PRETTY IN RED - Powermax PM5-1, circa 1974