I worked for a while on the Mil Mi-24 combat helicopter (Russian stuff, NATO codename "Hind"). It had a very clever OAT gauge. A plain, simple round flat spring-type thermometer that was held against the pilot's canopy by a metal bracket. No wires, no probes, no nothing. Just a thermometer hanging out in full view of the pilot. I think one day I'm going to replicate that on my KR2.
The Mi-24 is full of "lateral thinking" engineering. Another example: the landing gear struts double as compressed air tanks for the pneumatic systems (the Russian like to use a lot of pneumatics, rather than hydraulics, because it is less subject to freezing. Serge Vidal KR2 "Kilimanjaro Cloud" Paris, France "Mark Langford" <[email protected]> Envoyé par : [email protected] 01/01/2006 14:38 Veuillez répondre à KRnet Remis le : 01/01/2006 14:35 Pour : "KRnet" <[email protected]> cc : (ccc : Serge VIDAL/DNSA/SAGEM) Objet : Re: KR> Outside air temp sensor Jaco Swanepoel wrote: > Where is the best place to install a outside air temp sensor without placing it in direct sunlight or wind.(perhaps inside the engine cowling next to the ram air inlet?). INSIDE the ram air inlet, maybe. Sun shining on it isn't going to affect accuracy while flying (convection will be much greater than the radiation), and "wind" blowing on it will just make it more accurate. My under cowling temps are something like 75 degrees higher than outside air. You probably want "real" outside air for this job, so either put it on the outside of the cowling, or in the ram air tube or cooling inlet, or out in the stub wing, or even just sticking out of the fuselage (but the engine might affect it some there). Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net -------------------------------------------------------------- _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to [email protected] please see other KRnet info at http://www.krnet.org/info.html
