The Loening R-4 was a racer aircraft built by Loening in the early 1920s.

Design

The R-4 featured a low-wing monoplane layout, and the Packard engine weighed three times the size of the aircraft and took up a quarter length of the R-4, nicknamed the "flying engine". Both R-4 racers (AS68559 and AS68560) were entered in the 1922 Pulitzer Trophy race with poor results, being reported as "almost total flops".

Operators

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United States Army Air Service The United States Army Air Service (USAAS)Craven and Cate Vol. 1, p. 9 (also known as the ''"Air Service"'', ''"U.S. Air Service"'' and before its legislative establishment in 1920, the ''"Air Service, United States Army"'') was the aerial war ...

Specifications

References

* {{USAAS racing aircraft 1920s United States sport aircraft Low-wing aircraft Single-engined tractor aircraft Aircraft first flown in 1922 R-4