Boeing Stearman with 7-cylinder Moki radial engine 250cc. That's a fully functioning radial engine not a mock-up. This I belie… | Radial engine, Scale models, 250cc
MOKI 400 – DER Sternmotor für die Unlimites-Klasse - MOKI-Motoren
MOKI 400 – DER Sternmotor für die Unlimites-Klasse - MOKI-Motoren
SP-250-X Description – Seidel-Props
MOKI 400 - Fly Best Model, Aeromodellismo Dinamico Elettrico e Scoppio