[rebel-builders] Rebel Flapperon/Aileron settings
Posted: Sun Feb 19, 2012 5:33 pm
Hi Charlie !
I'm pretty sure that the flapperon settings are all in 6 degree
increments, with 6, 12, and 18 degrees down, and 6 and 12 up.
Some have chosen to use only 10 up .... for their own reasons...
18 degrees down IS the limit, without aileron input.
Generally, if you have less than 116 hp., it will be difficult to
fly well with 2 notches of negative, unless you are very light.
Sometimes, if very hot & heavy, even one notch is difficult.
It's unlikely that you will be able to obtain the aileron deflections
listed in the book on later Rebels, because dimensions were changed
on the forward bellcrank (CC-47 ?? --> CC-47-2), supposedly to lighten
stick force (not needed). The longer forward arm reduces aileron
travel - and roll rate. Several builders have shortened this arm
back to the original length. (No, I can't remember the length,
but someone else might chime in here - or I'll have to go up
& measure mine - again ... ;-) )
--
......bobp
bobp@prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.ordermygift.com
Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or persons.
Any action taken as a result of the contents of this email is totally the
responsibility of the reader.
-------------------------------orig.-------------------------
On Wednesday 23 September 2009 13:21, Charlie Eubanks wrote:
[quote]Hello All
I have started to install the controls for the flaps and ailerons on my
Rebel (1320 Lbs.) but I wanted to confirm that I had the right dimensions
to start with. I don't remember seeing any figures in the manual but in
the "Rebel File Library" under 211 Control System there is a PDF file
titled "Control Surface Deflection Guide" which sounds like it was
published by Murphy. Under "Ailerons" it states the ideal arrangement is
for 4" UP and 3-1/4" Down travel. Under "Flapperon" it calls for 3-1/2" or
15
I'm pretty sure that the flapperon settings are all in 6 degree
increments, with 6, 12, and 18 degrees down, and 6 and 12 up.
Some have chosen to use only 10 up .... for their own reasons...
18 degrees down IS the limit, without aileron input.
Generally, if you have less than 116 hp., it will be difficult to
fly well with 2 notches of negative, unless you are very light.
Sometimes, if very hot & heavy, even one notch is difficult.
It's unlikely that you will be able to obtain the aileron deflections
listed in the book on later Rebels, because dimensions were changed
on the forward bellcrank (CC-47 ?? --> CC-47-2), supposedly to lighten
stick force (not needed). The longer forward arm reduces aileron
travel - and roll rate. Several builders have shortened this arm
back to the original length. (No, I can't remember the length,
but someone else might chime in here - or I'll have to go up
& measure mine - again ... ;-) )
--
......bobp
bobp@prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.ordermygift.com
Any views expressed in this message are those of the individual sender
and do not necessarily reflect the views of any other entities or persons.
Any action taken as a result of the contents of this email is totally the
responsibility of the reader.
-------------------------------orig.-------------------------
On Wednesday 23 September 2009 13:21, Charlie Eubanks wrote:
[quote]Hello All
I have started to install the controls for the flaps and ailerons on my
Rebel (1320 Lbs.) but I wanted to confirm that I had the right dimensions
to start with. I don't remember seeing any figures in the manual but in
the "Rebel File Library" under 211 Control System there is a PDF file
titled "Control Surface Deflection Guide" which sounds like it was
published by Murphy. Under "Ailerons" it states the ideal arrangement is
for 4" UP and 3-1/4" Down travel. Under "Flapperon" it calls for 3-1/2" or
15