The KZ-I was the first airplane jointly designed and build by Kramme and Zeuthen. It was build instead of the planned “Flying Flea”. Only a single plane was ever built. The engine was an ABC Scorpion with a rating of 38hp.

It was first flown on 24th of February 1937. Needless to say aerobatics were not possible with this small “sports” plane. The original airplane disappeared during WWII, but all drawings have been preserved, and a replica using a VW1500 engine has been build. It resides at the Dansk Veteranfly Museum. The airplane is in airworthy condition.

The KZ-I is constructed entirely from wood. The fuselage is covered with ply-wood and the wings can be folded, to take less hangar space. The KZ-I has a “deHavilland”-looking engine cowling, even before SAI started using dehavilland engines. This cowling, together with the rudder shape, is a very distinct characteristic of all the KZ planes.

Notice the typical 1930’s look. In particular the wheel-spats, and the “oldfashioned” gap between the main wing and the ailerons, so typical of this period. The incredibly smooth and stream-lined fuselage is remarkable for a plane from this period.

Specifications

Construction: Plywood covered welded steel tubing.
Wingspan:7.20 m
Length: 5.37 m
Height: 2.25 m
Wing Area: 8.40 m2
Weight Empty: 192 kg
Weight Wet: 325 kg
Max Speed: 180 km/h
Cruise Speed: 160 km/h
Landing Speed: 60 km/h
Range: unknown
Ceiling: unknown
Number Build: 1

Photos