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Old 30th Aug 2002, 13:49
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Q max
 
Join Date: Jun 2002
Location: UK
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Dubious logic - Nick

Two attitudes here:
Fuselage attitude
Disc attitude

Disc must run at an attitude to cancel translating tendancy

Fuselage attitude will be such that cg is directly below thrust unless modified by t/r thrust not being in the same horizontal plane as the disc (in which case a cg/thrust couple is required).

Rotor head matters (a bit)
In Rigid and Fully Articulated cases another (much over debated) couple also modifies the fuselage attitude - which does not apply in the pendulous type rotor heads.




Incidentally Nick is the only person I have seen correctly qualifying CW and CCW with "when viewed from above/below" - they are meaningless terms without. - Similar to: "captain the left hand engine is on fire"
Q max is offline