SZD 55 also has a stall warning. Cheers
Paul On Dec 27, 2014 9:29 PM, "DMcD" <[email protected]> wrote: > >>You probably could do something very easily for modern non-flapped > gliders. AoA indicators have been around for a long time. You could have > three critical angles annotated on the device display: stall, climb and > cruise. Flapped gliders would need to have a method of knowing what the > flap deflection is which would change these angles a bit depending on the > deflection. The problem would be whether pilots would want an extra device > protruding into the laminar flow on the forward fuselage or not. > > DG SLGs have a stall warning indicator. It's build in just behind the > nose and is flush with the fuselage surface… that is, you cannot see > it unless you look. It appears to work at all bank angles and may > beep well above 55 knots if the aircraft is in a steep bank. > > There is a loud beeping and a flashing on the DEI stating Stall > warning! The point at which the alarm goes off can be adjusted but > not disabled. > > To some extent, when thermalling, you might get used to the noise but > I think it would combine with the vario noise and give you an overall > instinctive picture of the situation. > > It's very hard with this type of glider to enter a full spin but when > in a spin it recovers very rapidly and with a small height loss. > > From the DG website: > > 2. The Stall Warning System > I know that some pilots don't want to hear the word "stall warning", > but this feature is built into the DG-808C, because one of my best > flying friends crashed and died because of a stall. I promised myself > at this time to do something to prevent such senseless accidents in > future. > > Hence we have developed at DG new concepts as to how this stall > warning should work and to serve the pilot best and are pleased with > the results. > > Normally you are unaware of it is there, but when it starts to beep > and on the display the word "Stall warning" appears watch out you are > either at best flying under-optimal or in the worst case scenario > super-dangerous (life threatening). When such sound occurs in a turn > you certainly will automatically increase the speed immediately and > after landing you will probably not even realize that the stall > warning just saved your life. > > The stall warning due to its highly sensitive sensors is costly and > increases for us the price of the DEI-NT by several hundred Euros but > we are not offering it as an option but as "Standard" equipment on our > DG-808C. > > We are doing this for your personal safety. > > _______________________________________________ > Aus-soaring mailing list > [email protected] > To check or change subscription details, visit: > http://lists.internode.on.net/mailman/listinfo/aus-soaring
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