The E-113 was a small flat-twin piston engine developed by Aeronca for use in some of their light aircraft. It was an overhead valve development of the flathead configuration E-107.
Design and development Originally fitted with a single ignition system, this was updated to dual ignition when changes in FAA regulations made this mandatory in 1939. By that time, however, both the engine and the aircraft that it powered were facing obsolescence. Altogether, some 1,800 examples were built.
Following an incident in October 2015, where the propeller detached from a J-99 variant Aeronca C3, the Light Aircraft Association has issued an advisory that all aircraft fitted with these engines have the crankshaft attachment inspected prior to flying again. This issue was first recognised in 1939.
Variants E-113AStandard production model delivering 36-45 hp (26.85 - 33.56 kW) E-113CUprated engine delivering 40-45 hp (29.83 - 33.56 kW) Aeronca-JAP J-99The E-113-C was license built in England as the Aeronca-JAP J-99 by J A Prestwich Limited (JAP) and powered several British aircraft types,Lumsden 2003, p.160. differing from the E-113 by being fitted with dual ignition. O-113Engines fitted to impressed aircraft were given the designation O-113.
Applications
E-113 Aeronca C-3 Aeronca K Welch OW-6M
J-99 Aeronca 100 Aeronca 300 Britten-Norman BN-1 Currie Wot Dart Kitten Hants and Sussex Aviation Herald Heath Parasol Hillson Praga Luton Minor Peterborough Ely Slingsby Motor Tutor Taylor J.T.1 Tipsy Junior
Engines on display An Aeronca E-113 is on public display at the Aerospace Museum of California
Specifications (E-113)
See also
References
Notes
Bibliography
Lumsden, Alec. British Piston Engines and their Aircraft. Marlborough, Wiltshire: Airlife Publishing, 2003. . Trainor, Todd. Aeronca K and Aeronca Engines website 1938 Aeronca engine manual (online copy available here)