Hirth F-23 50HP – 2stroke

Hirth F23 – 50hp

Simple and modern 2 stroke engine from proven manufacturer. The most powerful engine installed. Suitable for heavy pilots and operation from short or high altitude airfields

Cooling: air
Ignition : CDI
Carburated or EFI
Propeller: Sandera 1400 3B, dia 1,4 m, three blade, carbon composite, ground adjustable
Fuel: MOGAS min.95 RON+2 STROKE OIL mixing ratio 50:1
TBO: 1000 h
Overhaul price 1400,- Eur


SI units Imperial units
Cruise speed @ 60% 170 km/h 106 mph
Fuel consumption @ 60% 8 l/h 1,76 gal/h
Level top speed at S.L. 200 km/h 125 mph
Climb speed at S.L. and MTOM 6 m/s 1188 fpm
TO distance over 15 m/50ft obstacle 150 m 495 ft
Landing distance over 15 m/50 ft obstacle 240 m 792 ft

The values of speeds are about 3% lower for TG and TGC version and 2 % lower for full XL cabin hood.

Installation simplicity
Propulsion efficiency

Higher consumption

F-23_1 F-23_2