PPRuNe Forums - View Single Post - Haptic Feedback Discussion Migrated From Max Thread
Old 19th September 2019 | 17:09
  #13 (permalink)  
gums
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15 Anniversary
 
Joined: Jun 2009
: Military
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From: florida
Salute!

@fdr, et al

Vipers, until late 90's, and with gear up ( normal law) had no AoA bias on pitch gee command until above 15 degrees, and then gee was limited by increasing AoA until 27 degrees or so and gee was limited to 1 gee. So in essence, we had neutral speed stability. However, the basic plane in "direct" law had negative static stability until about 0.95 M

I could not find a lotta difference in the Airbus laws WRT pitch except the pitch attitude WRT local level and the AoA limiting such as we had. If we climbed at 30 deg and had trimmed for 1 gee, then that is what we felt, and the nose would rise to preserve that 1 gee. Hence, steep climbs could help you getting into a deep stall when elevator ran outta authority to get nose down.

The mechanical uber alles folks should take a ride with me and then a good debrief to unnerstan.

Gums sends....






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