Flight testing of RAT on 320
The DGAC is to be issuing a CN (AD) shortly restricting A320 airspeed in a flight test with RAT deployed to 250 kt max. Any faster than that and it seems that the blades will only last about 2 minutes before disintegrating.
What I'm curious about though is why they don't also apply the restriction for an actual emergency deployment. ie max airspeed = 250 kt.
Anybody have any ideas on why?