Dear All,

I thank you very much for visiting this website.

Aircraft enthusiasts from all over have made this site possible with continuing input of information from Flight-Simmers, Aero-Modellers, Virtual-Pilots and Real-World-Pilots. My interest in aircraft started through the same self-interest that the de Havilland TK.4 drew out of people that had any interest in aircraft. I teamed up with an old-school mate from the seventies that I knew had the same level of interest to re-create a model of the TK.4.

This website is build by an Aviation Enthusiast for Aviation Enthusiasts. I invite fellow Aviation Enthusiasts to contact me and contribute to this site any information that other users would appreciate.

Specifications: Wing Span = 19ft. 2ins. Length = 15ft. 10ins. All-up Weight = 1,356lbs. Wing Loading = 24lbs/sq.ft. Maximum Speed = 244mph at 1,500ft Powerplant = de Havilland Gipsy Major II, 140 hp.

More About de Havilland TK.4

The de Havilland TK.4 was a a single-engined, low cantilever wing monoplane with an enclosed cockpit and retractable undercarriage. It was designed and built by students of the de Havilland Aeronautical Technical School in 1937 with the aim of building the smallest possible aircraft around the 140 hp. The TK.4, registered G-AETK, made its maiden flight on 30 July 1937 at Hatfield Aerodrome, UK. The TK.4 crashed Hatfield Aerodrome on 1 October 1937 while attempting a 100 km class record.

Construction of de Havilland TK.4

Fuselage was made up of four longerons with stringers, completely ply-covered; rear decking was one piece Elektron fairing as was fin and tailpane root fairing. Tail surfaces had balsa ribs with ply covering. Wings had balsa leading edge and four spruce boom and ply box spars. Top surface of wings were covered with spruce strips in two layers with grain on the bias. Lower surface of the wings were ply covered. All control surfaces and slats of solid balsa with lightening holes sheathed in ply.

The TK.4 fuselage was an object lesson in streamlining and windscreen was a two-piece modeling of plastic perspex moulding fairing into the canopy which as fitted with a rubber strip to protect the pilot's head in bumpy weather.

TK for "Tekniese Kollege" was the name of the drawings given by a Dutch student. TK.4 was the fourth design in that series - TK.1 (G-ACTK) in 1934, TK.2 (G-ADNO) in 1935, TK.3 (designed but was not build) and the last TK.5 (G-AFTK) in 1939. All the aircrart in the series was build under the direction of Marcus Langley at Stag Lane Aerodrome.

Updated On: 18.10.15