Oh, yes indeed it will affect the lamp life on landing lights if they are subjected to vibration and shock and if they are of the filament type. Take a household light bulb and rap it lightly against your palm, then try it in your fixture. Odds are that the filament will fracture with a rap or jar. There are household "rough service" lamps available for use in trouble lights/drop lights/work lights and for use on machinery, also some rated at 130 volts instead of 120, and the common feature among these is that the filaments are made a bit heavier and may also have additional support inside the glass globe. But they are still somewhat fragile.
Granted, automotive and aircraft lamps are made to withstand more shock and vibration than household lamps, but mounting one on your landing gear wheelpants is just asking for shorter life. The halogen units are a bit different than standard tungsten filament incandescent lamps in that the source is a small quartz tube with a tightly-wound filament inside, which gives the filament more sturdiness than a tungsten filament... and may be OK. Oscar Zuniga San Antonio, TX mailto: taildr...@hotmail.com website at http://www.flysquirrel.net _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail
