feathering airscrew technical
feathering propeller technical

A feathering propeller can alter the pitch of the blades up to almost 90 degrees.

Power is by a pair of up to 300hp diesel motors driving straight shafts with folding/feathering propellers.

Fully feathering propellers were also used.

It used three-bladed V-511 feathering propellers with scimitar-shaped blades.

Australia's largest range of feathering propellers.

As demand for the feathering propellers has grown we have gradually swung towards concentrating on the sailing propeller market.

A Watermota Shrimp inboard petrol engine with fully feathering propeller was fitted.

A considerable amount of drag will be lost when using a feathering propeller which could be the difference between making a landfall in daylight or darkness.

A folding propeller as opposed to a feathering propeller does not snag seaweed, lobster lines or plastic bags when sailing.

Griffon and Falcon were engined by Laird Brothers and had a feathering propeller.

Heron 2C: Redesignation of the Heron 2Bs, which could be fitted with optional fully feathering propellers.

Motor with fixed or full feathering propellers are generally classified as Touring Motor Gliders (TMGs).

The publication's review noted that the USD$70,000 base price did not include a feathering propeller, gyro instruments, wheel fairings, long range fuel tanks or other optional extras.

Feathering propellers rotate their blades 180 degrees on their axes going from forward to reverse in less than one shaft revolution, thus presenting the same leading edge of the blade in both direction.

The prototype, (French civil registration F-WPXB), was powered by two Turbomeca Astazou XIVD turboprop engines mounted in wing nacelles, driving three-blade fully feathering propellers.

This basic method provides a good platform from which to work to optimise the PAS performance and for your TMG specific, with aspects such as better glide ratios - or - with variables such as feathering propellers.

The ship's propellers are two Rolls Royce Marine KaMeWa Ulstein feathering propellers (feathering propellers are rotated parallel to the water flow in order to reduce drag).

A few advantages of using a feathering propeller is that the propeller is not turning constantly thereby eliminating noise and the continual wear of bearings The pitch of the blades can be set to any angle adapting it to any sailing craft.

In fact the thicker and more shaped a flat feathering propeller blade becomes the more it is inclined to twist in the water flow, this starts the propeller turning and then the propeller tries to come out of the feathered position and drive the shaft.