Other designs in the series included the V7 canard research aircraft, none of which entered production.
Aircraft
Skoda-Kauba SK V6
Other designs in the series included the V6 twin-boom pusher monoplane, none of which entered production.
Skoda-Kauba SK V5
Even before work on the Sk 257 began, Otto Kauba had begun work on a full-fledged fighter to have a 1,750 hp Daimler Benz DB-603 engine. Though it was in direct competition with the Focke-Wulf Ta 152, the RLM were not interested and it did not enter production.
Skoda-Kauba SK V4 / SK 257
The Škoda-Kauba Flugzeugbau produced the Škoda-Kauba V4 as a single-seat low-wing cantilever monoplane powered by a 240 hp (179 kW) Argus As 10C-3 engine with a retractable tailwheel landing gear. First flying in 1943, the first prototype proved very fast for its low power. The second included a number of changes and, despite increased power, was not as fast. A third was also completed.
The SK V4 fighter trainer was the only Otto Kauba design put in to production as the SK 227. The production was somewhat limited though.
The potential for development was recognized and the German Reichsluftfahrtministerium ordered four prototypes of an enlarged aircraft with a more powerful 485 hp Argus As 410 engine and allocated the designation Sk 257. The four prototypes performed well and the type was ordered into production but the build quality of the prototypes did not pass the Luftwaffe quality control inspections and after only five production aircraft had been built the order was cancelled.
The SK257 development received a German production order and five were completed before the Russians captured the factory.
SK V4
Engine: 1 x 240hp Argus As 10C-3
Max take-off weight: 1250 kg / 2756 lb
Wingspan: 7.60 m / 24 ft 11 in
Length: 5.60 m / 18 ft 4 in
Height: 2.90 m / 9 ft 6 in
Max. speed: 420 km/h / 261 mph
Ceiling: 7500 m / 24600 ft
Range: 900 km / 559 miles
Crew: 1
SK 257
Engine: 1 × Argus As 410 362 kW (485 hp)
Wingspan: 7.6 m (24 ft 11 in)
Wing area: 8.4 m2 (90 sq ft)
Length: 7.1 m (23 ft 4 in)
Maximum speed: 350 km/h (217 mph, 189 kn)
Crew: 1
Skoda-Kauba SK V3
Other designs in the series included the SK V3 light sports aircraft
Skoda-Kauba SK V1 / SK V2
The Austrian aeronautical engineer Otto Kauba approached the Reichsluftministerium (RLM) with a proposal for a flying-bomb early in 1942. The ministry was sufficiently interested in his ideas to assist in establishing the Skoda-Kauba design bureau in Prague, Czechoslovakia. The proposed flying-bomb layout was tested in a light monoplane, the SK V1, which was written off in a crash. Two modified aircraft, the SK V1A and SK V2, were tested before the project was abandoned in 1943.
Skoda-Kauba
Czechoslovakia
Founded spring 1942 at Cakowitz, near Prague. Worked for Germans. Experimental types included Sk-V4 light fighter-trainer with German Argus engine. SK257 development received German production order; five completed before Russians captured factory.
Sklenar Tatra T-101.2
Over a 10 year period Jiri and Ivo Sklenar created a replica Tatra T-101 (designated T.101.2). An original 1938 Tarta T-100 engine was overhauled by the original Tatra Company, and apart from some safety and cost effective material compromises, the replica deviates little from the sole produced original aircraft.
The aircraft features a 13 metre span, one piece wooden wing with 11 fuel tanks. This allows for approximately 30 hours flying time.
The replica was first flown from Kunovice airport, Czechoslovakia, by Stanislav Sklenar on 29 September 2007.
Skandinavisk Aero Industri As / SAI / Kramme & Zeuthen
Skandinavisk Aero Industri A/S (abbreviated SAI) was a Danish manufacturer of aeroplanes that existed between 1937 and 1954. The company was founded by technician Viggo Kramme (1905–1984) and engineer Karl Gustav Zeuthen (1909–1989) and based in Copenhagen.
The company’s aeroplanes were labelled “KZ” for Kramme and Zeuthen, the first being the KZ I from 1937. The KZ IV was built as an ambulance plane for Zone-Redningskorpset and introduced in 1944. Post-war sales never reached the company’s expectations, and production turned unprofitable in the early 1950s, driving the company to shutdown. In mid-1950s turned increasingly to repair and maintenance of military aircraft, and aircraft production had ended by late 1950s. In total, about 200 planes were built by the company.
A number of the KZ planes have been preserved. As of 2005, Dansk Veteranflysamling (The Danish Collection of Vintage Aircraft) exhibits a specimen of each of the 11 aircraft models manufactured by the company.
Skandinaviska Aero BHT-1 Beauty
On 7 May 1943 three young engineers sat in the Bacchi Wapen restaurant in Stockholm together with Åke Forsmark, manager of Skandinaviska Aero, and chatted about aircraft. The three were Erik Bratt, Karl-Erik Hilfing and Björn Törnblom, all students at Kungliga Tekniska Högskolan, the Royal Technical University in Stockholm. Their ideas gradually evolved into this sketch, on the back of a menu. It was originally meant to be a glider towing aircraft, and by May 1944 the design work was complete, with 4,000 drawings and 2,500 load calculations, performed by Törnblom, the only one of the three who had previous experience in aircraft design. He also designed the wings, fin and rudder. Hilfig was responsible for the fuselage and Bratt worked on the engine installation, propeller and landing gear.
The BHT-1 is a wooden low-wing cantilever monoplane with a retractable tailwheel landing gear. Powered by a 60 hp (45 kW) Walter Mikron 4 piston engine it has an enclosed single-seat cockpit. The wings include slotted flaps.
The BHT-1 Beauty was built by Skandinaviska Aero of Stockholm and first flew on 4 December 1944. Only one, SE-ANX, wa built.
The BHT-2 was a proposed two-seat development. A prototype constant speed propeller was developed for the aircraft using differential between engine oil, and ram air pressure to control pitch.
Engine: 1 × Walter Mikron 4, 45 kW (75 hp)
Length: 5.80 m (19 ft 0 in)
Wingspan: 6.82 m (22 ft 4½ in)
Height: 1.90 m (6 ft 3 in)
Wing area: 7 m2 (75.3 ft2)
Empty weight: 240 kg (538 lb)
Gross weight: 420 kg (924 lb)
Maximum speed: 250 km/h (155 mph)
Cruising speed: 210 km/h (130 mph)
Range: 1700 km (1056 miles)
Service ceiling: 7500 m (24600 ft)
Crew: 1
