Thu, Jul 25, 2002
By ANN Correspondent Juan Jimenez
Prop, hub and controller governor combo now installed on
several types of aircraft
Climb and Cruise Propellers Inc. (sharing Booths 92-93 with
Eggenfellner Aircraft, north of the main entrance to Hangar D) is
demonstrating the electric adjustable and constant speed prop hub
and governor controller system developed by Quinti Avio SRL of
This system should be of interest not only to owners of
conventional tractor aircraft but particularly to those who own or
are building pusher aircraft such as the BD-5. The reason for this
is that the Quinti Avio hub is designed such that the control
signals to the electric motor are connected through electrically
conductive tracks on the outer perimeter of the hub rather than
through the center of the hub.
means that on aircraft such as the BD-5, where connecting wiring to
the hub through its center is nearly impossible due to the
propeller shaft and clutch drive installation, this hub makes it
possible to install a propeller system which allows the pilot to
optimize the performance of the engine and the aircraft.
The Quinti Avio hub is available in two- or three-blade
configurations using Warp Drive standard 120 horsepower blades.
Both hubs are available with Rotax or SAE configurations. The base
price of the Rotax hub with drive motor, spinner adapter, three
Warp Drive blades and electric controller with manual switch is
$3,795. The same configuration with an SAE hub is priced at $4,645.
Both carry an additional $45 crating charge if you want the system
shipped to you.
Options available for the system include nickel leading edges
for water use only ($135), high power blades rated for 160
horsepower ($165), tapered standard or high power blades ($135), a
Flyspeed constand speed controller ($695) and a CNC machined 13
inch spinner back plate ($250). Fiberglass spinners are also
available from a third party supplier and all prices are FOB
Flyspeed option is an electronic propeller governor which also
doubles as a tachometer and manifold pressure gauge. It is designed
to maximize performance from all electric variable pitch propellers
b y providing preset modes selected for takeoff, climb, max cruise,
standard cruise, mid cruise, economy cruise and landing. The unit
can also be connected to a personal computer through a serial port
for continous recording of RPM, MAP and electric motor current.
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