The O.S. Speed B21 AD3 Adam Drake 3 Competition ...
ition .21 Nitro Engine with 2100SC Pipe is the latest evolution of this potent racing engine. Designed in collaboration with the legendary Adam Drake this AD3 edition features several updates and improvements over ...
great power plant for trainers, sport planes and scale aircraft – and best of all, it mounts in the same space as the popular 61FX ABL for easy drop-ins! Includes a newly ...
better than ever, with an improved carburetor and muffler. You get the same phenomenal power, with the convenience and safety of a rear angled needle valve on the carb and a squared ...
9-Port On-Road Nitro Engine, a factory tuned engine solely developed for 1/8 racing competition. This redesigned engine boasts 9-port piston liner to improve torque in low-middle power range. It also produces enough ...