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词条 Interstate Cadet
释义

  1. Design and development

  2. Variants

  3. Specifications (S-1B1)

  4. See also

  5. References

name=Interstate Cadet image=Interstate L-6 Cadet USAF Museum.jpg caption=An L-6 of the USAF Museum

}}{{Infobox Aircraft Type

 type=Utility monoplane national origin=United States manufacturer=Interstate Aircraft and Engineering Corporation designer= first flight=1940 introduced= retired= status= primary user=United States Army number built=574 developed from= variants with their own articles=Arctic Tern
}}

The Interstate Cadet was an American two-seat tandem, high wing, single-engine monoplane light aircraft. Around 320 of these aircraft were produced between the years 1941 and 1942 by the Interstate Aircraft and Engineering Corporation based in El Segundo, California. The construction techniques employed were a welded steel tube fuselage, wood (spruce) wing structure with metal ribs, and fabric covering, all of which were fairly standard in the 1940s.

An Interstate Cadet, flown by aviator Cornelia Fort and an unknown student, was one of the first aircraft (if not the first) to be attacked by IJNAS Japanese naval planes en route to the Pearl Harbor attack on December 7, 1941.

Design and development

The original version, the S1 prototype, was powered by the 50 hp Continental A50 engine, but was soon upgraded to the Continental A65 engine and redesignated as the S1-A-65F. This was a common engine used in many small American two-seat aircraft of the time. This aircraft would be used during World War Two under the L-6A designation.

In 1945 the rights to the aircraft were sold to Harlow Aircraft Company which in turn resold the tooling and parts to the Call Aircraft Company of Afton, Wyoming in 1946 for $5000. Callair rebuilt a number of S-1, S-1A and L-6s, some with engine upgrades, for local ranchers and bush pilots as well as two examples of their own serial numbered CallAir S-1A-90C before stopping production.[1]

One reason it may not have sold well was that this aircraft cost almost three times the amount of the comparable Piper J-3 Cub. However, a close look at the two aircraft reveals that the Cadet was faster, stronger, and could be operated in a more rugged environment with its Oleo strut/Compression spring suspension system. Popular upgrades for this airframe included larger engines(75/85/90/100 hp), better brakes, and a different tailwheel system.

In the late 1960s the type certificates and tooling were bought by the newly formed Arctic Aircraft Company who transformed the S-1B1 into a bush plane by upgrading structural elements of the fuselage, landing gear and wings. This aircraft was designated the S-1B2, was used a Lycoming O-320 160 HP engine and a McCauley propeller for increased performance and was certified in 1975 as the Arctic Tern. The new Type certification also covered installing the same engine in otherwise standard Interstate Cadets.

Variants

S-1

Certified in 1940 and powered by a Continental A50-8 engine.[2]

S-1A

Certified in 1941 and powered by a Continental A65-8 engine.

S-1A-65F

1941 variant powered by a 65hp Franklin 4AC-176-B2 engine.

S-1A-85F

1942 variant powered by an 85hp Franklin 4AC-199-D2 engine.

S-1A-90C

1952 Callair variant powered by a 90hp Continental C90-8 engine.only two built.

S-1A-90F

1942 variant powered by 90hp Franklin 4AC-199-E2 engine.

S-1B1

1942 variant with a Franklin 4ACG-199-H3 engine. Military production as the L-6 Grasshopper.[8]

S-1B2 (
//Arctic Aircraft Arctic Tern">Arctic Tern)

1975 improved variant of the S-1B1 powered by a Lycoming O-320-A2B or B2B engine.[8]

XO-63 Grasshopper

United States Army designation for one S-1B for evaluation, later designated the XL-6.

L-6A Grasshopper

United States Army designation for the S-1B1, 250 built.

L-8A Cadet

United States Army designation for eight S-1As ordered on behalf of the Bolivian Air Force.

Specifications (S-1B1)

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|max speed kmh=183
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|range km=869
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See also

{{aircontent
|see also=
|related=
  • Arctic Tern

|similar aircraft=
|sequence=
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  • List of aircraft of World War II
  • List of military aircraft of the United States

}}

References

Notes
1. ^{{cite journal|magazine=Air Progress Sport Aircraft|title=The Quiet Professor|date=Winter 1969}}, {Anelon interviews with former Callair employees}
2. ^1 2 {{cite web | title=Type Certificate Data Sheet #A-754| url=http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/dd29e4b6c44bcd20862574c600611bea/$FILE/A-754.pdf| date=31 October 2007|publisher=Federal Aviation Administration| accessdate=2009-12-20}}
3. ^1 {{cite web | title=Type Certificate Data Sheet #2-558| url=http://www.airweb.faa.gov/Regulatory_and_Guidance_Library/rgMakeModel.nsf/0/a0210d5c3cf8e2df862574c600616d3e/$FILE/2-558.pdf| date=31 October 2007|publisher=Federal Aviation Administration| accessdate=2009-12-20}}
[2][3]
}}
Bibliography
{{commons category|Interstate Cadet}}{{refbegin}}
  • {{cite book |last= Andrade |first= John |title= U.S.Military Aircraft Designations and Serials since 1909|year=1979 |publisher=Midland Counties Publications|isbn= 0-904597-22-9}}
{{refend}}{{Interstate aircraft}}{{USAF liaison aircraft}}{{USAAF observation aircraft}}

5 : Interstate aircraft|United States civil utility aircraft 1940–1949|High-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1940
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