Force .52F New In Box. (CODE H583)

Displacement: 8.52cc (.52 cubic inches)
Engine Class: “40-class” physical footprint with bumped-up .52 displacement.
RPM Range: 2,800 to 12,000 RPM.
Piston & Liner: ABC construction (Aluminum piston, Chrome-plated Brass liner) with Schnuerle porting for higher efficiency.
Crankshaft: Dual ball-bearing supported alloy steel crankshaft.
Carburetor: Twin-needle design with a rear-canted main needle for safe adjustment away from the spinning prop.
Weight: 457 grams (16.12 oz).

The Force .52 F (also known as the KT Force Power 52F or Force 52 ABC) is a high-performance 8.52cc two-stroke single-cylinder nitro/glow engine designed primarily for RC airplanes.