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The
Northrop Flying Wing has been called by some as the most important aircraft
design of this century. This is certainly backed by the fact this
design has intrigued homebuilders for years. Gilbert Davis was one
of these people, but it was not until he became friends with Joseph G.
Rosales of Gardena, Calif., that he realized the feasibility of designing
and building a successful flying wing of the Northrop type, one small and
economical enough for pilots in the hombuilt market.
Gilbert
Davis' friendship with Joe Rosales, comments which Jack Northrop made to
him ("Well, we'll leave that to a younger man" in reference to further
development of the flying wing), and Davis' meeting Bill Lear in Reno in
1977, all convinced him that the flying wing concept offered a real opportunity,
and that the time was right to bring it into the realm of general aviation.
The Davis
Alpha test aircraft has proved that Jack Northrop was right. Eager
to prove his design and his dream, on June 10, 1986, Davis rolled out his
design, the Alpha Flying Wing. This would be an eventful day.
After years of testing, modifying, molding and fabrication, the aircraft
rolled to the end of the runway, ready for high-speed taxi testing.
Flight testing soon followed on that day with the nose and then main gear
gently clearing the runway. After more than 30 minutes of flight,
the craft touch lightly down and taxied back to the hanger. Davis
had proven once again that the all-wing design is both stable and flyable. |
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This aircraft is not designed to be just another kit; it is not designed
to be flown by everyone; it is meant for the few who relish the thought
of flying a legend. Davis found there was enough interest
to warrent producing a kit, but builders seemed to want a multi-place version
built from high-temperature composites with an aircraft engine. The
Davis Starcruiser Gemini design shown at the left was the result.
This design
can carry as many as five people, three side-by-side in the cabin and two
prone in the inboard section of the wing. With two people, it can
carry 90 gallons of fuel and more than 1,000 pounds of baggage. With
a lighter baggage loads, you can build in 280 gallons of tanks and fly
two people over 6,000 miles (ed. - that is the figure in the article).
The prone positions also made it a good aircraft for flying camping trips
since it becomes your mobile home. The Gemini can be flown
with as little as 65 hp with reasonable performance, or with the 150 hp
Lycming aircraft engine. |
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The Davis Wing uses the combined effects of wing sweepback, small vertical
fins and flow fences, cowling side loads to produce the needed yaw stability.
The elevons combine the standard functions of both elevator and aileron
and, the flaps operate in conjunction with the trim flaps to cancel any
unwanted pitch. The rudder action is produced by using split drag
rudders at the wingtips. When the rudder pedal is operated, it opens
the corresponding set of drag rudders and the resulting drag twists the
aircraft in the direction of drag. When both rudder pedals are depressed,
they act as air brakes.
SPECIFICATONS
Five-Place Flying Wing
Wingspan...................................................40
feet
Length........................................................12
feet
Height.........................................................
5 feet |
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Cabin Width................................................51
inches
Empty Weight............................................980
pounds
Useful Load.............................................2,020
pounds
Normal Gross Weight...............................2,000
pounds
Maximum Gross Weight...........................3,000
pounds
Fuel Capacity..............................................90
gallons
Engine...............................................Lycoming
O-320
Propeller..........................................Wood,
fixed pitch
Maximum Speed........................................185
mph
Stall Speed (@ 2000#).................................52
mph
Crusing Speet (@ 75%, 8000')....................172
mph
Rate of Climb (@ 2000#).........................1,300
ft.min
Range (@ 55%)......................................1,800
miles
Service Ceiling......................................24,000
feet
Approx. Construction Time.........................800
hours |
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Davis
had also been working on a Cold Jet (ducted fan) flying wing design.
The diagram at the left shows his concept drawing of the unit that could
be used to power a "jet" version of the Gemini Wing. It uses a good-sized
V8 driving a high-speed rotor that acheives a pressure ratio of 1.3 to
1. Davis projected this would result in in first-class personal sport
jet without all of the problems experienced in the past. The Davis
Wing had enough internal volume to allow for the Cold Jets and all of the
necessary systems, with room to spare.
(ed.
- This item was included since Davis had an actual working version of the
Cold Jet that could be installed in the Gemini. The latest we have
heard of the Davis Wing's availability didn't include anything about this
version. The item below was received from the Davis Wing company
several months ago, so we are not sure how valid the information may be.
TWITT is in no way endorsing this aircraft, but simply providing the information
for each individual to make their own decision regarding obtaining additional
information.) |