Andy wrote:

"It triggers the warning when the spoilers are unlocked and the
airspeed
exceeds 25 knots."

The same conditions are satisfied for landing approach with the gear
down. I expect the answer is that the 302, containing a full airdata
and GPS system, can easily determine that a takeoff has started.
Indeed, it does that to start the logger function.

I wrote that poorly. This is what the manual says: "When airspeed rises
above 25 knots, the alarm sounds". Just having the airspeed above 25
knots won't do it, as you note, it is the "rising above".

--
Change "netto" to "net" to email me directly

Eric Greenwell
Washington State
USA