On Fri, Feb 13, 2009 at 10:31 AM, Stuart Buchanan <stuart_d_bucha...@yahoo.co.uk> wrote: > > Hi Sébastien,
>> Last point: I think I've found a possible mistake in static system >> failure with airspeed indicator: indeed I though that with blocked >> statics (dirty or forgotten flames) and pitot working fine, the >> indicated airspeed is higher than real airspeed, but actually it seems >> not to be the case. Indeed the ASI gives some relatively high speed near >> the ground but falls down to zero quite quickly when climbing, then goes >> back to a high value at 0ft/mn climbing... I'm maybe complety wrong and >> the simulated behaviour is correct. > > I'd have to look at my books, but I think the ASI only uses the pitot. > In fact ASI uses both pitot and static pressure. The static pressure is mandatory because it gives a reference, and this reference changes with the weather and the altitude. If you block the static at 10000ft and land, the ASI should indicate a positive value when the plane is stopped. http://greggordon.org/images/pitotStaticSystem.jpg Laurent -- Laurent Vromman Key ID : B57DA503 Fingerprint : 2214 8446 F5A7 F310 EB67 25F2 A683 42D3 B57D A503 ------------------------------------------------------------------------------ Open Source Business Conference (OSBC), March 24-25, 2009, San Francisco, CA -OSBC tackles the biggest issue in open source: Open Sourcing the Enterprise -Strategies to boost innovation and cut costs with open source participation -Receive a $600 discount off the registration fee with the source code: SFAD http://p.sf.net/sfu/XcvMzF8H _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
