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Maverick Air TwinJet
 Bob Bornhofen was retired when he got into the aviation business, and had no aviation background. He wondered why he couldn't buy a personal jet, and in 1998 he decided to create one. Bornhofen has been funding much of the project out of his own pocket.
To be marketed as a kit, the Twinjet has a pre-preg eglass composite airframe with carbon fiber control surfaces and empennage.
The TwinJet was not certified because it uses two converted surplus GE-T58 military helicopter engines (overhauled and zero-timed).
 The TwinJet was designed in anticipation of the FJX-2 engine, which was being developed under the General Aviation Propulsion program. The FJX-2 was going to be a new generation turbofan engine producing 700-800 pounds of thrust.
When delays occurred for that engine, Bob Bornhofen elected to use the T58 engines so he wouldn't slow the TwinJet development.
 The first prototype was flight tested to about 370 knots during a series of tests to determine if the aircraft had any major certification-related problems.
Engines: 2 x GE-T58 turbojet
Wing span: 10,21 m (33 ft 6 in)
Wing span, tip tanks: 10,52 m (34.5 feet)
Lenth overall: 8,69 m (28 ft 6 in)
Height overall: 2,74 m (9 ft 0 in)
Empty weight: 2,600 lb
MAUW: 5,100 lb
Fuel capacity: 270 USgallon
Optional fuel: 320 US gallon
Max speed 30,000 ft: 480 mph
Cruise speed 30,000 ft: 400 mph
Single-engine cruise speed 30,000 ft: 230 mph
Initial rate of climb: 3,500 fpm
Single-engine climb rate: 1,000 fpm
Stall at 5,100 lb: 90 mph
Range standard fuel: 1,000 miles
Range optional fuel: 1,300 miles
  Serial number: 1, Prototype N750TJ.
First flight 4 august 1999.
Public debut at EAA Air venture, Oskosh, August 2000.
Destroyed on Jan. 24, 2003 in Melbourne, Florida
 Serial number: 2, N411KT
Owned by Mike Seavall (Longmont, Colorado).
It was built from a Maverick Air's kit. Two years were spent to build it.
 Serial number: 3 N699VA
Professionaly built in 2003.
Fitted with 2 T850 engines
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