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1940s - Ace Aircraft Languish

1940 - President Roosevelt splits the CAA into two agencies: the Civil Aeronautics Administration (CAA) and the Civil Aeronautics Board (CAB). The CAA was responsible for air traffic control, safety programs, and airway development.

July 1, 1940 - The Junior Ace Approved Type Certificate is not converted to the CAR Part 04 Type Certificate and is expired. Based on U.S. Government aircraft registrations, it is believed only two aircraft were ever certified under this type certificate: NC14807 (SN# 0135) and NC16803 (SN# A-136).

December 1, 1941 - Civil Air Patrol (CAP) is founded.

December 7, 1941 - Japan bombs Pearl Harbor.

1942 - It is believed that due to the demand for pilots in World War II, the Corben Sport Plane Company ceases operation. [1]

From 1927 to 1942 - 31 Ace aircraft were assigned aircraft registrations by the U.S. Government.  Although Corben only sold three separate aircraft models--the Baby Ace, Junior Ace, and Super Ace--Ace aircraft were registered under numerous model designations:

  • Ace SP Baby Ace
  • Baby Ace
  • Baby Ace SSP
  • Super Ace
  • B
  • C
  • Sport B
  • 7-AD
  • Baby Ace B
  • Junior Ace
  • Junior Ace 6
  • Junior Ace 6-S
  • Junior Ace 600-S
  • Baby Ace AD
  • Madison A Super Ace
  • Super Ace

The designations "Baby," "Junior," and "Super" were used interchangeably between all three aircraft although this may not have been intentional.  Serial numbers assigned to Ace aircraft by the company were also chaotic.

1942 - Popular Aviation is renamed Flying magazine.

1946 - A former Corben Sport Plane Company worker, Mr. Fred Leidel, returns from World War II and discovers the Corben Sport Plane Company and the Madison Airport are no longer in operation. [2]

1 Leidel, F., Corben Copy, “Corben the Company”
2 Ibid.


Page last updated: Thursday, November 24, 2011