The Hirth F-263 is a twin cylinder,
in-line,
two stroke,
carburetted aircraft engine that was designed for use on
ultralight aircraft
Ultralight aviation (called microlight aviation in some countries) is the flying of lightweight, 1- or 2-seat fixed-wing aircraft. Some countries differentiate between weight-shift control and conventional three-axis control aircraft with ailer ...
. It was manufactured by
Hirth
Hirth Engines GmbH is an engine manufacturer based in Benningen, Germany. It is currently a part of the UMS Aero Group. Hirth began manufacturing aero engines in the 1920s, was taken over by Heinkel in WWII to develop the Heinkel-Hirth jet en ...
of Germany, but was discontinued about 2001.
[Cliche, Andre: ''Ultralight Aircraft Shopper's Guide'' 8th Edition, page G-3 Cybair Limited Publishing, 2001. ]
Development
The F-263 uses fan cooling and piston-ported induction, with a single Bing carburetor and single
capacitor discharge ignition. The cylinder walls are electrochemically coated with
Nikasil
Nikasil is a trademarked electrodeposited lipophilic nickel matrix silicon carbide coating for engine components, mainly piston engine cylinder liners.
Development
Nikasil was introduced by Mahle in 1967, and initially developed to allow Wankel ...
. Standard starting is
recoil start. A gearbox reduction drive system and electric start were factory options.
The engine produces and runs on a 50:1 pre-mix of
unleaded 93 octane auto fuel and oil. Recommended time between overhauls is 1000 hours.
Applications
*
Howland H-3 Pegasus
The Howland H-3 Pegasus is an American ultralight aircraft that was designed by Bert Howland and made available by Howland Aero Design in the form of plans for amateur construction, with kits provided by Aircraft Spruce & Specialty Co. The H ...
*
Falconar HM-293
Specifications (F-263)
See also
References
{{Hirth aeroengines
Hirth aircraft engines
Air-cooled aircraft piston engines
Two-stroke aircraft piston engines