TVP Specifications

Open

Ducted

Nested

Vary the Thrust

Ducted applications can benefit from our flight-proven ducted propellers, whose tip-loaded blades maximize the efficiency of the ducts

The camber of the fixed-pitch blades can be varied in flight to enable trimming for efficiency between vertical and cruise modes. They can also compensate for engine lag in tail-sitters, and create differential thrust in multicopters – at constant RPM.

Mission Selectable Propulsors

TVP’s common and simple interface enables swapping propulsors in the field to fit the mission. The operator can choose to maximize range, increase maneuverability, or to reduce the signature of operations by choosing the propulsor type best suited to mission intent or conditions.

This “family of propulsors” approach can significantly increase the utility of the vehicle, and its value to the operator.

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Flight Ready

Two flight articles are shown mounted on our VTOL test fixture. They include all the options listed above for Ducted single-axis vectoring. Each propulsor is mounted 5 degrees off its drive axis which is ground adjustable on this fixture.

At any power level the thrust vector of each propulsor can be pointed independently +/-12 degrees in less than 0.18 seconds.

The 44″ (112 cm) diameter propellers spin at the same rotational speed (4,200 rpm), and can generate a 45% thrust differential on command in less than 0.3 seconds.  

The metrics measured  per propulsor are shown below.

Measured values per propulsor:

RPM
0
lbs-Thrust
0
hp
0
ft-lbs Torque
0
+/- deg Tilt
0
deg/sec Tilt Rate
0

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