| Abandoned
& Little Known Airfields: Watch out...you might get sucked
into a time warp!!! |

Aerofiles:
American Aviation from 1903 to 2003. The internet's largest
and most comprehensive research and reference site |
| Aircraft
Engine Historical Society: lots of information about the people,
art and science of aircraft engine development, manufacture and
use. |
| Aviation
Zone: "Home of the Heavies" Modern and vintage
military transports. |

The
Great Planes: A source about World War II aviation. |
| Horizontally-Opposed
Piston Aero Engines: Tons of statistics and chronologies on U.S.
designed and built engines. I use this site to get and confirm
information constantly. |
| Howstuffworks:
How Radial Engines Work: An EXCELLENT animated diagram of how a
radial engine works including cylinder firing sequence. Check
it out! |

milavia.net:
All military aviation. Military aircraft directory, Air Force
directory, articles and airshow reports. |
US
Warplanes: a web page guide to the definitive World War II, post
World War II and
present day aircraft of the US Armed Forces by Simon Beck. |
| Warbird
Registry: A developing database of military aircraft that have
entered civilian hands. A great place to find warbirds. |