Grumman G-22 Gulfhawk II

by Kazunori Ito

1.Description of this aircraft
3.About the installation
4.About the operations
5.About free software
6.About the directions point in FS2004 and FSX


Material concerning this aircraft was very little.
It may almost think this face to be the same as F3F.
However, the photograph of this are also few........
Because 3D-View drawing was unavailable, I have completed this aircraft by the guess from several photographs.
Therefore, If the mistake is found in this model, I apologize to you.

1. [ Description of this aircraft ]

One of the most exciting aerobatic aircraft of the 1930s and 1940s was the Grumman Gulfhawk II, built by Grumman Aircraft Engineering Corporation in Bethpage, Long Island, for the Gulf Oil Companies. It was delivered to Roosevelt Field, Long Island, in December 1936 for Major Alfred "Al" Williams, former naval aviator and Marine, who at the time was head of Gulf's aviation department.

This sturdy civilian biplane, powered by a Wright Cyclone R-1820-GI 1,000 hp engine and a three-blade Hamilton Standard propeller, nearly matched the F3F standard Navy fighter that was operational at that time. The wings, of unequal span and, like those of the earlier F2F-1, were constructed of aluminum spars and ribs and were fabric-covered. The fuselage was of monocoque construction, covered with a 0.032-inch aluminum alloy, and could accommodate only the pilot. Modifications were made in the construction to withstand the high-load factors encountered during aerobatics and the aircraft was equipped for inverted flying for periods of up to half an hour.

The Gulfhawk II took its paint scheme from the Curtiss Hawk 1A Gulfhawk, Al Williams' first civilian aerobatic plane. Gulfhawk II's fuselage was painted bright orange with blue trim and the wings had black-edged white stripes radiating rearward and outward on the top surface of the upper wing and the bottom surface of the lower wing.

The airplane thrilled many an air show spectator throughout the United States and Europe from 1936 to 1948. It was a feature attraction at such meets as the Cleveland Air Races, the Miami All-America Air Show, and the New York World's Fair, demonstrating precision aerobatics and the new technique of dive bombing.

In 1938, Williams flew the Gulfhawk II in Europe where aviation enthusiasts in England, France, Holland, and Germany were treated to his daring maneuvers in the colorful little biplane. During this overseas visit the only other person ever to fly the Gulfhawk II, the famous German World War I ace Ernst Udet, piloted the aircraft over Germany. In exchange, Major Williams became the first American to fly the vaunted Messerschmitt 109.

The Gulfhawk II also became a flying laboratory. A new pilot's throat microphone was tried out in it in 1937 and during Word War II it was used to test oils, fuels, and lubricants under extreme operating conditions. In 1942, at the request of General H.H. Arnold, Williams made a three-month tour of fighter schools and training bases to demonstrate airmanship and precision aerobatic flying to pilot trainees.

On October 11, 1948, the Gulfhawk II, NR1050, made its last flight before its donation by the Gulf Oil Corporation to the National Air and Space Museum. At Washington National Airport, Major Williams took his airplane through a demonstration of aerobatics, and then taxied to a strip adjacent to the airport administration building where he shut off the engine and removed the control stick, thus formally decommissioning the historic airplane. The aircraft was displayed for a time in the Arts and Industries building and, from 1976 to 1998, in the Museum's West End gallery.

2. [ Specification ]

Wingspan 8.72 m (28 ft. 7 in.) upper
8.18 m (26 ft. 1 in.) lower
Length 7.01 m (23 ft.)
Height 3.05 m (10 ft.)
Weight 1,625 kg (3,583 lb.) aerobatic

Other performance are almost equal to F3F.

3. [ About the installation ]

The airframe must copy the \Gulfhawk II folder as it is in the Aircraft folder of FS2002 or FS2004.

---------\Gulfhawk II

Please copy all files in the \gauges folder onto the gauge in the Gauges folder of FS2002 or FS2004.
A general gauge is saved for the gauge bundled this time.
The gauges of EXTRA-300 and GPS is not bundled.
Please set up it by yourself.

4. [ About the operations ]

Shift+"E" = Canopy Open/Shut

A special key operation is not used for this model.

It is not being equipped with flap and airbrake for this aircraft.
Therefore, after it reduces velocity enough, please go into the glide slope by the low sky land.

5. [ About free software ]

All aircraft that I made are free software.
The reprint and the repaint may go freely.
However, please defend the following conditions.

1.The change in contents of this file is prohibited.
(Please distribute it like the Zip file of the current state when distributing it. )
2.Please neither reverse-assembly nor never remodel(convert) it of the aircraft model.
3.Please don't bundle my airframe(MDL file) in the package of your works when you open the repaint to the public.
(Please open only the texture to the public. )
4.Don't use DXT format for making texture.
Please make it by the format that everyone can change.
It is necessary to be able to read and change with usual drawing software.
5.It is prohibited to bundle and to open a new panel to the public to my aircraft model.
(Please open only the panel to the public.
It is included in this file, and remodeling the panel that uses the panel background and the change in the panel background are prohibited. )
6.I maintain the copyright of the aircraft model and the panel background.
7.The copyright of the gauge belongs to the author.

6. [ About the directions point in FS2004 and FSX]

This aircraft model is made by using FSDS Ver2.24.
Therefore, it is possible to play basically in FS2004(FS9) and FSX(FS10).
In FS2004.
For a wide large-scale aircraft, the distortion is caused and the phenomenon of the aerofoil tip's disappearing happens in the spot shooting mode.
If this phenomenon happens, Please switch to the spot shooting mode by using other small aircraft.
Afterwards, if this aircraft is selected, it is normally displayed.

Because gauges do not correspond to FSX, the gauges in the cockpit are not displayed.
Please you looks for a suitable gauges and setup Panel.cfg by yourself.

Please give mail to the following mail address when there is a recommendation of making the opinion and the thing that doesn't come.


Fukuoka, Japan