Technical data
Type Che-22
Function Light amphibian
Year
Crew 2
Engines 2*64hp Rotax-582
Fuel consumption 18l/hour
Length m
Wingspan m
Wing area m2
Empty weight 370kg
Loaded weight 650kg 750kg
Wing Load (kg/m2)
Power load (kg/hp)
Cruising Speed 150km/h 145km/h
Maximum Speed 170km/h 190km/h
Takeoff Speed 60km/h
Landing Speed 50km/h
Takeoff Roll (Land) 50m
Takeoff Roll (Water) 70m 30m
Landing Roll ?m
Gear retraction time 15sec
Seaworthiness 0.5m
Front wind 6m/sec
Side wind 12m/sec
Operational air temperature -20...+40°C
Range (normal) 430km 600km
Range (ferry) 1200km
Flight Endurance hmin
Ceiling m
Climb
At 0m with crew only 9.5m/sec
Payload
Fuel (main) 80l
Fuel (external) 140l
Seats up to 2?
Cargo 160kg

Che-22 amphibian by B.Chernov and E.Yungerov

37k and 23k photos from Che-22 Amphibian Homebuilt

Home-built twin-engine parasol flying boat. Aircraft was developed from earlier Che-20. Small underwing floats were replaced by enlarged anhedral wingtip. This became a standard on all following models. In early 90's designers came to manufacturing Che-22 for sale. STOL performance allows to operate even from small forest lakes and rivers and perform variety of tasks:

Che-22 is designed and built in compliance with JAR-VLA, FAR-23 and AP-23 flight standards. It become one of the first Russian homebuilts which is manufactured for common use.

During 5 years Che-22 and its predecessor Che-20 logged about 500 hours of trial and training flights. About 120 pilots were trained. Aircraft evolved from 2-seater powered by 30hp boat engine to 4-seater with pair of Rotax (either 503 or 582) engines. Fuselage is made of epoxy/foam composite sandwich, wings - aluminum with fabric skin. Latest variants have electrically driven gear retraction, mechanical flaps, and an optional BRS 'Cobra' parachute.

Cabin has two removable butterfly-type doors. Basically showed as 2-3 place aircraft (nevertheless may be flown even with 5 men aboard). Windshield may be opened to access the engines while on the water.

40k photo from Che-22 Amphibian Homebuilt

Aircraft is available for customers as a 75% pre-assembled kit or as a ready-to-fly aircraft. Two-, three- and four-seat variants with engines (single or two) totaling power from 60hp to 140hp were test-flown and may be delivered. Technical support is (was?) provided by Povolzhski Aviation Science&Technology Center.

Soon after production of Che-22 started, B.Chernov left the company and started his own design group which made Che-25 and Che-15.

As of beginning of 1999 about 30 Che-22 were built and sold mostly in Russia (also 1 was sold to Philippines and then re-sold to Vietnam, one - to South Africa, one - to Ukraina, one - to Greece). Aircrafts can be produced both as pure flying boat and amphibian with retractable gear. BRS can be installed.


References
  • Hydroplanes by Boris Chernov
  • E-mail from Alexander Lameko, Main Russian Aviation Site
  • Plane sailing for aircraft inventors
  • Links
  • Che-22 Amphibian Homebuilt
  • Che-22 Amphibian Homebuilt
  • Che-22 aircraft

  • Created January 22, 1999
    with help of Alexander Lameko
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