The Kestrel Jet Helicopter
Construction Manual
The Kestrel is a single-seat
ultralight helicopter powered by small jet engines mounted on the tips
of the rotorblades. This form of power eliminates the need for a tail rotor,
simplifying and reducing the cost of construction.
If ordered separately, the jet-helicopter
construction package is available for $23.95 (+$3 postage US, $7 foreign).
This package includes the Vortech Catalog.
Please note:
this manual provides an overview of the construction of
the jet helicopter, showing frame construction and many details
regarding the integration of the control system, jets, fuel-flow
system, and rotorsystem. The manual provides a schematic view of
the rotorhead, but does not detail the construction of the
rotorhead, rotorhub, rotorblades or jets. Vortech sells a jet-helicopter
rotorhead and the jets, or these parts can be built from separate prints.
However, their construction is complex and requires machining..
Specifications of the Kestrel:
Length: 12'; height: 7'; empty wt:
180 lbs; gross wt: 440 lbs; payload (max) 260 lbs; engines (2): G8-2-20
jets; fuel: propane; fuel consump: 12+ gal/hr; rotor dia: 25'; speed (max):
95 mph (63 as ultralight); altitude (max): 12,500'.