If the turbine turns off by a flameout you can hear it also without alarm
Spunki: you are right if you are flying alone, but in a crowded r/c club this is often not possible... when a flameout happens in this situation the pilot notices it when the airplane slows down, and at this time it is much harder to do the runway. With this device warning the pilot a few seconds earlier , could make the difference between crashing the plane or not.
Wow, what a waste of money!! More electronics, weight, more failure, for what?? How many dead stick caused by emty tank did you guys see in the last years???
Glorfindel: this is also a relative question... a plane with this device can carry no extra fuel for safety margin reasons on timed flights, so a plane with it would be lighter, (or fly longer, if
you prefer).
About extra failures, they are no critical. they didn´t interfere with the plane control, so no harm could be done. About adding more electronics to the plane, that´s no problem too.. you should wait to see what a r/c plane will look in 20 years from now!
And finally about the amount of dead sticks seem per year depend how many flights are done..
there is a strong possibility of this happening in the figure of hundreds of flights.
Enrique