Later came variable-pitch propellers, where the angle of attack of the blades could be increased collectively to take a bigger “bite” of the air for more thrust. This enabled thrust variation ...

By attaching a wing to each of the arms, it becomes a large variable pitch propeller powered by tip thrusters. To measure the efficiency of the craft, a small lidar sensor was added to allow ...

Each of the six variable pitch propeller assemblies were equipped with five blades and actuated by a single variable pitch actuator driving a mechanical pitch change mechanism. Joby conducted a ...

This, in turn, generates additional drag, slowing the prop down. This is called a variable-pitch propeller, universal in modern turboprop powerplants. In short, you start with an extremely high ...

But this supersonic propeller design produced such intense ... drive shafts spinning beside the pilot, and variable pitch blades optimized for transonic airflow, the Thunderscreech pushed engineer ...

Six engines with five-bladed variable-pitch propellers are mounted on the forward edge of the main wing, three to each side, which are capable of tilting to provide both vertical and forward thrust.

The variable-pitch propellers will take a minimum of 76 days to fabricate and install at a cost of roughly $120,000. “Our next step will be to sail the Niagara to shipyard (in Cleveland ...