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-   -   Principles of Flight (https://www.pprune.org/tech-log/439903-principles-flight.html)

Jane-DoH 4th Feb 2011 16:31

Machinbird


In a word-NO.:}
Sorry, I was just going on what members were saying.


Best roll rate planes have their mass in the center, powerful ailerons, short wings and having hydraulic boost doesn't hurt a bit.
I sort of understand this. You can pirouette way faster when you have your arms pulled in really close together (I'm still surprised though there wouldn't be a slight advantage to having a slightly larger span at low-speeds as the ailerons could exert more leverage).


Examples T-38 and A-4 Skyhawk. They'll bang your head off the canopy if you aren't paying close attention.
Yeah, both are renown for their swift roll-rates. Which rolls-faster BTW?

Pugilistic Animus 4th Feb 2011 16:37


roll helix angle = Pb/2V, p= rate of roll

so, p = Roll helix angle*2V/b..roll rate is directly proportional to V and inversely proportional to 'b'...
:)
edit: b=wing span



Jane this is a thread about Gene Krupa...:=

:}:ouch:


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