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Old 17th Jun 2014, 20:20
  #113 (permalink)  
Owain Glyndwr
 
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Originally posted by DozyWannabee

You remember right, however in this case the aircraft did not degrade to Direct Law, but to Alternate 2 (the equivalent of Alternate [no speed stability] on the A320 IIRC). In Alternate 1, roll is still rate-commanded, but in Alternate 2 the roll commands become direct. In Alt 2 the pitch commands are still rate-commanded, unlike Direct Law.
Yeah I knew that Dozy, but talking of a lateral oscillation the pitch mode is irrelevant and for all practical purposes my statement that the roll degraded to a direct law is correct even if you label it Alt2
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