Roll reversal does happen, but I think that the main reason for using lift
spoilers for roll control is that it avoids adverse yaw. During flying
training I was supposed to check for roll reversal in the Hunter on the solo
supersonic trip. So you climb to 30k above the sea (west of Wales), drop the
nose at full power and get it up to just transonic and before you recover from
the dive you roll once each way and note the fact that it goes the wrong way.
It went the right way, and I couldn’t be bothered to try again. It was
probably my fault . . .
Chris
On 29 Jun 2014, at 18:47, Chris Trask <christrask@xxxxxxxxxxxxx> wrote:
>>
>> No, indeed. I don’t know the landing speed of a B-52, but it will not be
>> low.
>>
>
> Landing speed would be a bit high, but I'm not sure how much control you
> have to keep the wingtip up. As I recall, the B-52 uses spoilers for yaw
> just like the B-47 as ailerons would cause the wing to twist, resulting in
> reversed control. Not sure if this is true, just something I understood from
> history.
>
>
> Chris
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