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

37k and 23k photos from Che-22 Amphibian Homebuilt
H
ome-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:
  • Ecological monitoring
  • Border patrol
  • Training
  • Tourism
    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 Ukraine, one - to Greece). Aircrafts can be produced both as pure flying boat and amphibian with retractable gear. BRS can be installed.
    ReferencesLinks
  • E-mail from Alexander Lameko, Main Russian Aviation Site
  • Che-22 Amphibian Homebuilt
  • Che-22 Amphibian Homebuilt
  • Che-22 aircraft
  • 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...+400C
    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
    Created January 22, 1999
    by Alexandre Savine
    and Alexander Lameko
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