The Tempest will also be much more durable than an aluminum prop. If three blades are good, will four be better? To find out we ran the Revolution 4, sort of a four-blade cousin to the Tempest Plus ...

Upon drydocking, a third-party company found the cracks and fractures at the base of the no. 4 blade of the five-bladed propeller, where the blade was bolted to the propeller’s hub. The cracks i ...

The updated coverage now provides a warranty through first overhaul at 6 years or 4,000 flight hours, whichever occurs first.

The company also offers King Air 200 aircraft owners and operators the option of an aluminum 4-blade swept propeller.

but the prop model should be one with max blade area.” Mercury offers its FourStroke 90 and 115 models with a 4.75-inch-diameter Command Thrust gear case with a low gear ratio to slow prop speed and ...

The company said the new four-blade prop is certified by the European ... MT said one of its goals in designing and manufacturing the propeller, called the MTV-4-1, is to help keep the vintage ...

giving captains the ability to lock the prop blades open when under sail to activate regeneration for the onboard batteries. The new Gori Hybrid is a further development of Gori's 3-Blade ...

The propellers of the world's ships and boats create a constant drone that disrupts ocean life. New propeller designs based on loops could one day quiet that drone and be more fuel efficient.

Test results of the different boat propeller designs. (Credit: rctestflight) Interestingly, the 2-blade FDM-printed propeller ended up performing the best, while the bi-blade design (with two sets ...