The original girt strength tests in the TSO were designed to assure that the attachment point of the slide to the aircraft would support the in-use loads expected. These tests included: 1)
a 1050 lb. static loading of the girt, produced by placing sandbags on the escape slide erected to nominal doorsill height, or an angle not greater
than 300, and 2) a lateral loading of the girt, produced by a 25-knot wind directed horizon-tally, parallel to the ground, against the side of the escape slide longitudinal beam.
hi.....this is the only number i came across researching this matter, since i did ask the what if? question also
by that i mean the 25 kts wind speed
this comes from a document labelled..." inflatable escape slide beam and girt strength tests..support for technical standard order(TSO) C-69b" DOT/FAA/AM-98/3
i would really appreciate the input on the matter...am sure the numbers are burried somewhere.. i cannot believe that a max demo x-wind limit of say 38kts for an A320 would not take into account escape slide at least equal to that number...