WIX Archives
Tks for the info N/T
Posted by Michel Lemieux on Tue Feb 05, 2002 01:31:04 PM
In reply top Well, more of an amateur who canīt shut up posted by Christer on Tue Feb 05, 2002 12:09:53 PM
: : - I.E. the rotating mass effect is eliminated right ?
:
: Yes, that too. As You know, another name for it is precess
: ion which I mentioned further down.
:
: : - Is the rotation of the slip stream dictated by the bac
: k
: : prop ??
:
: I?m not sure if there is any residue rotation of the slip
: stream but, if there is it?s minimal. What I mean is that
: the front propeller makes the slip stream totate anti cloc
: k wise and the rear propeller stops the rotation.
:
: : - ??? I understand this in a single prop setup....But sh
: ou
: : ld this be eliminated with the 2 props
:
: In the case of twin engined aircraft, the propellers are r
: otating in the opposite direction of eachother, commonly i
: nwards. This will position the downwards going blades at t
: he same distance from the fuselage center line and, of cou
: rse, the same for the upwards going blades.
: Now make these two propellers coaxial on the fuselage cent
: er line = one contra rotating unit.
:
: : - My question was just in take off from the ground. How
: ba
: : d is the swing compare to a single prop Griffon variant
: fo
: : r example ?
:
: Not bad at all, there is no swing if the propellers counte
: ract eachother perfectly.
:
: : - This does not sound too fun........Now who ere had thi
: s
: : happened ??
:
: I?ll say no more, SHhhhhhhhh
:
: Christer