A three-blade 14x7 from Master Airscrew's 3-Blade Series, moulded in black glass-fibre reinforced composite. Three blades let you get the same thrust from a smaller disc than a two-blade prop, which buys ground clearance on low-slung airframes and taildraggers, and gives a more convincing scale look on warbirds and multi-engine models. Suits both electric motors and glow engines.

This is the reverse rotation version, intended for pusher installations and counter-rotating setups on twins. It turns the opposite way to a standard tractor prop — fitted to a conventional puller setup it will produce thrust in the wrong direction. Check which way your motor turns before ordering.

Adapter rings are included, so the 5/16in bore can be stepped down to suit smaller motor shafts without buying a separate adapter set.

Specifications

Size: 14 x 7in (356 x 178mm)
Blades: 3
Rotation: reverse / pusher
Shaft bore: 5/16in (7.94mm), adjustable with included adapter rings
Hub thickness: 11/16in (17.5mm)
Weight: 71.4g (2.52oz)
Material: glass-fibre reinforced composite
Colour: black
Contents: 1 propeller with adapter rings