Heinkel HD.24

Sk 4

Heinkel had originally built two HD 24s for the competition ”Seeflugwettbewerb” in 1926. Further aircraft were built for the German Airline Pilot School (DVS). Eight Heinkel HD 24s (HD = Heinkel Doppeldecker), Sk 4 in the Air Force, was ordered in the first half of 1926 by the MFV (the Navy aviation), just before the forming of the Swedish Air Force. The Swedish Sk 4s were ordered from Heinkel’s Swedish subsidiary Svenska Aero AB. The aircraft was designed as a naval aviation trainer, but the floats could be replaced by wheel landing gear or skis. The eight Sk 4s were all based at the naval aviation Wing F 2 at Hägernäs.

The first two Sk 4s were manufactured at Heinkel’s Warnemünde works as pattern aircraft for the rest of the series. The two aircraft were approved by the Air Force in November 1926. Some months later, they were given the Air Force numbers 201 and 202. The six aircraft built in Sweden were approved in July 1927 – November 1928 (Air Force numbers 203-208).

The six first aircraft (201-206) were fitted with Mercedes engines of 180 hp. These engines were unfortunately not very reliable. Therefore, the 207 and 208 got Junkers Jumo L 25 engines. These engines delivered 280 hp (100 hp more than the Mercedes engines). The 207 and 208 got the subdesignation Sk 4A. After some time, also the 203, 204 and 206 got the L 25 engine and got their designation changed to Sk 4A. Aircraft 201, 202 and 205 also got their original Mercedes engines replaced, but this time to the Armstrong Siddeley Puma (240 hp). New designation Sk 4B.

Sk 4
Length: 9,69 m.
Span: 14,20
Height: 4,15 m
MTOW: 2.150 kg
Max. speed: 168 km/h

Heinkel HD.19

The HD-19 fighter was developed by Heinkel to an order from the Swedish VVS. The contract provided for the production of six fighters HD-19 (Heinkel Of doppeldecker 19). The first two had to be built at the plant of Heinkel, and remaining four – at Svenska Aero AB in Stockholm. Aircraft was equipped with a Bristol Jupiter VI engine, since this engine was standard for Swedish VVS. The first aircraft was tested at Warnemünde in July 1928, and after several months aircraft began to enter into F 2 squadron service, where obtained Swedish designation J 4. In 1934 three aircraft of those remaining in the operation were transferred into the F 1 squadron.

Engine: 1 x Bristol Jupiter VI, 420 hp
Wingspan: 11.00 m
Length: 9.26 m
Height: 3.91 m
Wing area: 31.60 sq.m
Empty weight: 1175 kg
Normal takeoff weight:1725 kg
Maximum speed: 215 km/h
Cruising speed: 182 km/h
Range: 838 km
Maximum rate of climb: 414 m/min
Service ceiling: 6400 m
Crew: 2
Armament: 3 x 8-mm machine gun

Heinkel 1911 Biplane

Ernst Heinkel flying his homemade biplane near Stuttgart in July 1911.

In 1909, after attended an international airshow in Frankfurt am Main, he determined flight was the future of transportation, and the following year, he built his first aircraft.

Working from a set of plans by Henri Farman, Heinkel’s aircraft was originally powered by a modified marine engine, but first flew his biplane at Cannstatter Wasen near Stuttgart in July, 1911, with a 50 hp engine on loan from DMG (Daimler). Heinkel crashed the plane and suffered severe injuries on 19 July, 1911.

Hegy Chuarosa / Humming Bird

This was a single-seat enclosed cabin biplane designed and built by Mr. Ray Hegy, who was famous for his wooden propellers. Work on the aircraft started in 1950 and was it completed in 1959, making the first flight on 1 May of that year as N9360. The aircraft had a 65hp Continental A65 engine and a mixed steel tube/wood construction. The aircraft was donated to the EAA (AirVenture) Museum.

Gallery

Heeman WIGE

Rudy Heeman of Nelson, New Zealand, spent three years building and designing the hovercraft that can travel on water land and air.

The craft has alloy wing spars, with foam cored ribs and fabric skins. The tail unclips but stays on for trailer transport.

He wanted to develop the flying hovercraft design, but had to sell a prototype to raise enough cash to do so.
It was listed on a ‘Trademe’ website expiring on 13 March 2010 with a reserve of NZ$20,000.
Mr Heeman, a mechanic, has been making hovercraft in his spare time for more than 13 years but was his first attempt at a flying version. He had spent 75 hours flying his completed bovercraft.
With a modified 1.8 litre Subaru car engine and a range of more than 225 kilometres, the hovercraft cruises at 90 kph when flying, and has a smooth ride above the waves.

This machine is a W.I.G [wing in ground effect] in the form of a hovercraft. This machine, which is classed as a boat and comes under MSA rules, can operate as a hovercraft or, when the wings and tail put on, flying machine that can travel above the water or land. The engine is an EA81 subaru, modified with turbo, intercooler blow thru webber carb.

The construction of the hovercraft began in 2003 and conversion to WIGE began in 2007. The first flight was towards the end of 2007.
The wingtips have water skis on them so it doesn’t dig in.
The final wing shape was the third design. Skirt retraction is electric. The thrust diverter works electrically by pushing green or red buttons on the handlebars. The green button gives a 30% increase in thrust instantly by diverting lift sir to add to thrust once airborne.

Has alloy wing spars, foam cored ribs and fabric skins. The tail unclips if not required but stays on when transported. Has a retractable finger skirt, open cockpit, aerofoil wings, and thrust diverter.

The first test flight was 2007.

The WIGE was auctioned on the New Zealand Trademe website during 27 February – 13 March 2010. It was listed as designed and built by Rudy Heeman. Powered by a 100 hp inboard motor, it could operate as a hovercraft or, with the wings and tail put on, as a wing in ground effect flying machine. Built in 2003, the engine had run for 150 hours. With the 1.8 lt engine it could reach over115 kph, and a range of over 225 km cruising at 90 kph, using 30 lt of 96 octane fuel/hr.
The machine does not require any licence but must obey boat rules when on or above the water. The sale was for the machine only and did not include copyrights, intellectual properties, moulds etc.
In flying mode t could carry 160 kg (or three people as a hovercraft).
At that time it had flown over 75 hours with the Subaru EA81 engine, modified with turbo, and intercooler blowthru Webber carb.
Engine: 100 hp at 5000 rpm +7 lb boost, approx. 400 lb thrust.
The T/O distance is approximately 80m and, while it has flown in 25 kph winds, a max of 15 kph is recommended.

It was sold by Trademe auction for $27,500.

Engine: Subaru EA81, 100 hp 100HP at 5000rpm with 7 pounds boost
Wingspan: 7m
Length with tail: approx 6.3m
Length: 4 m (13 ft)
Approx weight: 320 kg + 50 kg wing and tail
Fuel capacity: 75 lt
TO speed: 70 kph