Commonwealth Skyranger

Last updated
Skyranger
Commonwealth 185 (N90683).jpg
Commonwealth Skyranger 185
RoleUtility aircraft
Manufacturer Rearwin, Commonwealth
Designer Gene Salvay and George A. Stark
First flight9 April 1940
Produced1940-1942, 1945-1947
Number built358

The Commonwealth Skyranger, first produced as the Rearwin Skyranger, was the last design of Rearwin Aircraft before the company was purchased by a new owner and renamed Commonwealth Aircraft. [1] It was a side-by-side, two-seat, high-wing taildragger.

Contents

Development

The Rearwin company had specialized in aircraft powered by small radial engines, such as their Sportster and Cloudster, and had even purchased the assets of LeBlond Engines to make small radial engines in-house in 1937. By 1940, however, it was clear Rearwin would need a design powered by a small horizontally opposed engine to remain competitive. Intended for sport pilots and flying businessmen, the "Rearwin Model 165" first flew on April 9, 1940. Originally named the "Ranger," Ranger Engines (who also sold several engines named "Ranger") protested, and Rearwin renamed the design "Skyranger." The overall design and construction methods allowed Rearwin to take orders for Skyrangers then deliver the aircraft within 10 weeks. [2] :179–180

The Skyranger's development in 1940 [1] came shortly before the U.S. entered World War II. At that time, the U.S. government was purchasing almost any airplane in the two-seat, 50-90 horsepower class as training aircraft for the Civilian Pilot Training Program ("CPT Program" or "CPTP"), intended to develop tens of thousands of pilots for the possibility of U.S. involvement in the war. However, unlike its contemporaries heavily used in the CPTP such as the Piper Cub, Taylorcraft, Interstate Cadet, and Porterfield Collegiate, the Skyranger was rejected by the government for CPTP use as too challenging to fly. [1]

By 1942, Rearwin had produced only 82 Skyrangers (compared to hundreds or thousands of its competitors' planes) when World War II forced production to halt. [3] [4] [2] :186

In 1945 Commonwealth Aircraft re-established production of the Skyranger. The first 12 had to be hand-built, as the original jigs and tooling were recycled or scrapped during World War II. [2] :186 In 1946, production shifted to Valley Stream, New York. the Commonwealth Skyranger had minor modifications but was essentially the same as the pre-war aircraft. Commonwealth went bankrupt in 1946, and was dissolved in March of 1947, partly because the pre-war design failed to compete with new designs and cheap war surplus aircraft. [2] :213

Design

The Skyranger was a high-wing light plane seating two people side-by-side. It had a conventional landing gear with a tailwheel. It was constructed with a fabric-covered steel tube fuselage and wooden wing (with a semi-symmetrical airfoil cross-section. The Skyranger was powered by a variety of opposed engines made by Continental Motors and the Franklin Engine Company, [4] ranging from 65 to 90 horsepower. It sold for $1,795 to $2,400. [5] [2] :180

The Skyranger handled differently from the other planes in its class (such as the Cub, Taylorcraft, Cadet, Collegiate, and Aeronca Chief), with a "heavy-airplane feel" (heavy controls, exceptional stability). With an unusually large vertical stabilizer for its size, the Skyranger was exceptionally susceptible to crosswinds during landing and taxiing. [4] [1] Unusually for the time and aircraft in its class, the Skyranger was also designed with slots in its outer wings to allow controllability at lower speeds. [2] :181

Variants

Rearwin Model 165
Prototype of the Skyranger family and first made public as the "Ranger," it featured a 65hp Continental A65 engine. The 65hp engine was later offered as a lower-cost option. At least 1 built. [2] :180
Rearwin Skyranger 175
Initial production version, the model number was increased to reflect the use of a 75hp Continental A65 engine as standard. [2] :180
Rearwin Skyranger 180
Up-engined version of the Skyranger 175 using the 80hp Continental A80 engine. [2] :186
Rearwin Skyranger 180F
Up-engined version of the Skyranger 175 using the 80hp Franklin Engines' 4AC-176-F3. The engine change required a new cowling, but introduced an automotive-type starter and generator. New options increased the gross weight of the plane by 100lbs, so the fuselage tubing was strengthened. [2] :186
Rearwin Skyranger 190F
A further up-engined version of the Skyranger 180F using the 90hp Franklin Engines' 4AC-199-E3. 1 built. [2] :186
Commonwealth Skyranger 175
The Rearwin Skyranger 175 with minor modifications. [2] :186
Commonwealth Skyranger 185
Commonwealth Skyranger 175 with an 85hp Continental engine. This was the standard version produced by Commonwealth Aircraft Company. [2] :186

Rearwin also offered a low-cost version of the Skyranger from 1940 to 1941. [2] :180

Aircraft on display

Specifications (Model 185 Skyranger)

Commonwealth 185, built in 1946, at Boeing Field, Seattle, in May 1989 Commonwealth 185 Seattle 17.05.89R.jpg
Commonwealth 185, built in 1946, at Boeing Field, Seattle, in May 1989

Data from Jane's all the World's Aircraft 1947 [12]

General characteristics

Performance

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References

  1. 1 2 3 4 Davisson, Budd (1983), "Commonwealth Skyranger Pilot Report: We Fly a Little Known Classic", Air Progress, retrieved October 10, 2017 via on author's website as "Uncommon Skyranger"
  2. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Wright, Bill (1997). Rearwin: A Story of Men, Planes, and Aircraft Manufacturing During the Great Depression . Manhattan, Kansas: Sunflower University Press. ISBN   0-89745-207-0.
  3. "Aircraft", Aerofiles.com, retrieved October 10, 2017
  4. 1 2 3 Davisson, Budd, "Sometimes 'Free' Would Still Be Too Much: Bringing a Rearwin Skyranger back from the dead," July, 2003, EAA Vintage Airplane, Vol.31, No.07, retrieved October 10, 2017
  5. "Rearwin", Aerofiles.com, October 1, 2007, retrieved October 10, 2017
  6. Comstedt, Johnny. "Rearwin 175 Skyranger in Liberal". Flickr.com. Retrieved 23 December 2018.
  7. "Exhibits". Fargo Air Museum. Retrieved 23 December 2018.
  8. "Airframe Dossier 164963". Aerial Visuals. Retrieved 23 December 2018.
  9. "Airframe Dossier 48929". Aerial Visuals. Retrieved 23 December 2018.
  10. "Aviation Exhibits". NC Transportation Museum. Retrieved 23 December 2018.
  11. "Aircraft of the Mid-America Air Museum: Post-War Civilian Aircraft". Mid-Atlantic Air Museum. Retrieved 23 December 2018.
  12. Bridgman, Leonard, ed. (1947). Jane's all the World's Aircraft 1947. London: Sampson Low, Marston & Co. p. 200c.

Further reading