The HP 1.20 twin is an alternate firing, 2 stroke twin with
center rotary valve induction. This engine really sounds awesome
and has become very popular with large scale builders, especially
in P 51's. Inherent to its design, this engine is extremely
smooth running and the slim line allows it to be installed
in narrow fuselages. Marine modelers have found the HP 1.2
a great performer too.
HP 1.20 is produced with Austrian & American made components
and carry a two year warranty. The crankshaft is supported
by 4 ball bearings and all versions are available with ABC
or ringed pistons & cylinders. This engine is derived
from the famous and well proven HP .61 Gold Cup.
tuned pipe system is available for extra performance. No muffler
system is available as most installations are custom. See
tuned pipe section in this catalog. If you want to use pitts
style mufflers, the exhaust bolt pattern is the same as the
OS FSR .61.