balance the stabs??..why??....HOW??
10-06-2005 | 01:27 AM
#1
balance the stabs??..why??....HOW??
hello again!
well after reading some posts here about balancing the stabs
i went to my f-15 skymaster and fount out that....i need.....
...I NEED A SERVO ON THE L.E. TO BE BALANCED!!!
until now no problems in flight.......so what you want me to do?open them and get some stones in the stab??:P
bettre replace the elevators servo position from inside the fuse to the L.E. of the spar?:P hahaaha(that was my idea:P)
or dont do nothink... :-( ....and why?....
thank you for your time people
ciao
george
>>>>>>>>>>>baseba ll,football,basketball,tennis & golf require only one ball ! > RC JETS TAKES TWO <<<<<<<<<<<<&l t;<<
well after reading some posts here about balancing the stabs
i went to my f-15 skymaster and fount out that....i need.....
...I NEED A SERVO ON THE L.E. TO BE BALANCED!!!until now no problems in flight.......so what you want me to do?open them and get some stones in the stab??:P
bettre replace the elevators servo position from inside the fuse to the L.E. of the spar?:P hahaaha(that was my idea:P)
or dont do nothink... :-( ....and why?....
thank you for your time people
ciao
george
>>>>>>>>>>>baseba ll,football,basketball,tennis & golf require only one ball ! > RC JETS TAKES TWO <<<<<<<<<<<<&l t;<<
10-06-2005 | 03:18 AM
#2
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RE: balance the stabs??..why??....HOW??
Hi George,
Full flying stabilators like F-15 and F-18 doesn't seam to be sensitive to flutter.
According to my knowledge the SM F-15 and F-18 does not require any mass balancing of the tailerons in respect of flutter. However, as you pointed out, they are a bit heavy for the servo hold in neutral position on the ground. For this reason BVM/Tamjet has according to their manual for the F-18 to mass balance up to 50% just to reduce the power consumption.
On the other hand conventional stabilators with conventional elevators can be sensitive to flutter at high speeds. Example: Viper Jet, L-39 Albatross, BAe Hawk etc.
I tried to explain earlier in this thread below (post #81) how flutter is induced and how to avoid it:
http://www.rcuniverse.com/forum/m_27...flutter/tm.htm
/Johan
Full flying stabilators like F-15 and F-18 doesn't seam to be sensitive to flutter.
According to my knowledge the SM F-15 and F-18 does not require any mass balancing of the tailerons in respect of flutter. However, as you pointed out, they are a bit heavy for the servo hold in neutral position on the ground. For this reason BVM/Tamjet has according to their manual for the F-18 to mass balance up to 50% just to reduce the power consumption.
On the other hand conventional stabilators with conventional elevators can be sensitive to flutter at high speeds. Example: Viper Jet, L-39 Albatross, BAe Hawk etc.
I tried to explain earlier in this thread below (post #81) how flutter is induced and how to avoid it:
http://www.rcuniverse.com/forum/m_27...flutter/tm.htm
/Johan
....thanx for the info and your time
