Aeromarine AM-1

AM
AM-3
Role Mail plane
National origin United States of America
Manufacturer Aeromarine
Designer Paul Zimmerman
First flight September 1923
Developed from Aeromarine AMC

The Aeromarine AM-1 was a biplane built to pursue a US Air Mail Service requirement for a nighttime transport.[1]

Design and development

The AM-1 was completed 122 days from the announcement of a 1924 requirement for a nighttime mail plane capable of hauling 300 lb (136 kg) of mail.[2] The contest was lost to Douglas aircraft.[3]

The AM-1 was a biplane with conventional landing gear, it featured an all-metal fuselage with metal covering .32 in (8.13 mm) thick. The engine was fully cowled with the exhaust stacks stretching behind the pilot. The water-cooled engine used a centrally mounted radiator mounted above the top wing for visibility. Two streamlined fuel tanks sat on top of the wings. The upper wing was larger than the lower wing, each using spruce spars. The tail surfaces were aluminum framed with fabric covering. Many components were common with the design of the Aeromarine AMC flying boat.[2]

Variants

Aeromarine AM-1
Base version
Aeromarine AM-2
A slight redesign to address nose drop with engine out, and drag. The aircraft was the same as an AM-1 except the radiator was relocated under the fuselage.
Aeromarine AM-3
Radiator moved to the front of the engine, tested with 350hp engine, found to be under-performing.[2]

Specifications (Aeromarine AM-1)

Data from Skyways[2]

General characteristics

Performance

See also

Aircraft of comparable role, configuration and era

References

Wikimedia Commons has media related to Aeromarine aircraft.
  1. Class Journal Co. (1924). Automotive industries, the automobile, Volume 50.
  2. 1 2 3 4 "none". Skyways. January 1999.
  3. Ted Koch (July 1998). "none". Skyways: 44.
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