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Old Sep 01, 2003, 02:00 AM
Newbee
Guest
n/a Posts
Aircraft forward/aft balance

Without going out and buying one of those balance devices is there a simple
inexpensive way of verify proper airplane balance? I was just going to flip
it over and place wing lead edge on raised surface to find balance point.
Any other suggestions? Thanks ahead of time...


Old Sep 01, 2003, 02:01 AM
Malcolm Messiter
Guest
n/a Posts
Re: Aircraft forward/aft balance

I always balance the 'plane using just my fingers too - your method is fine!

"Newbee" <wolf5150gang@hotmail.com> wrote in message
news:Iio4b.84383$xf.73174@lakeread04...
> Without going out and buying one of those balance devices is there a

simple
> inexpensive way of verify proper airplane balance? I was just going to

flip
> it over and place wing lead edge on raised surface to find balance point.
> Any other suggestions? Thanks ahead of time...
>
>



Old Sep 01, 2003, 02:01 AM
Fred McClellan
Guest
n/a Posts
Re: Aircraft forward/aft balance

On Sun, 31 Aug 2003 11:15:53 -0400, "Newbee"
<wolf5150gang@hotmail.com> wrote:

>Without going out and buying one of those balance devices is there a simple
>inexpensive way of verify proper airplane balance? I was just going to flip
>it over and place wing lead edge on raised surface to find balance point.
>Any other suggestions? Thanks ahead of time...
>


Care to build your own CG machine ?

Surf to http://home.bellsouth.net/p/pwp-modelbof and check out
"Vanessa".
Cheers,
Fred McClellan
the dash plumber at mindspring dot com
Old Sep 01, 2003, 02:01 AM
SKYLANE42
Guest
n/a Posts
Re: Aircraft forward/aft balance

Use your fingers and find the spot.. you won`t be that far off. The cg on most
planes should be right about on the spar unless you have a special wing
configuration. The plane should nose down slightly at the cg.
Old Sep 01, 2003, 02:01 AM
Red Scholefield
Guest
n/a Posts
Re: Aircraft forward/aft balance

There are also instructions and plans (diagrams) for building one. I've
posted the .pdf file at www.rcbatteryclinic.com/Temp/balance.pdf
--
Red Scholefield AMA 951 District V

"Fred McClellan" <the-plumber@mindspring.com> wrote in message
news:v8c4lv8nkenifkmo435k9q5e68go0c34ql@4ax.com...
> On Sun, 31 Aug 2003 11:15:53 -0400, "Newbee"
> <wolf5150gang@hotmail.com> wrote:
>
> >Without going out and buying one of those balance devices is there a

simple
> >inexpensive way of verify proper airplane balance? I was just going to

flip
> >it over and place wing lead edge on raised surface to find balance point.
> >Any other suggestions? Thanks ahead of time...
> >

>
> Care to build your own CG machine ?
>
> Surf to http://home.bellsouth.net/p/pwp-modelbof and check out
> "Vanessa".
> Cheers,
> Fred McClellan
> the dash plumber at mindspring dot com



Old Sep 01, 2003, 02:01 AM
A.T.
Guest
n/a Posts
Re: Aircraft forward/aft balance

"Vanessa" Jim Archer's sling and plumb bob method as shown on Fred's page is
excellent, especially for large models, but to calculate CG and MAC,
positions etc refer to =
Calculators, Conversion, C of G, MAC, Servo Torque calculation charts
(Flight trim see above) at http://homepages.ihug.co.nz/~atong/ if the
following do not appear as direct links on your screen =
Conversion & Calculation tables etc
CG & MAC - Graphic
CG - Canards - site down email Alan for a copy.
CG & MAC calculator = PJB's Seriously Aeronautical Stuff
CG Sling & Balance beam "Vanessa" Zip file - email Alan for a copy.
CG Sling
Convert - free download - convert units from one type to another ****
Design Calc - from Van's Place (site down - email Alan for a copy.)
Entisoft Units -- Measurement Conversion Calculator --
Performance Slide Rule Calculator - Servo torque, Horsepower, Stall Speed
etc.
R/C Aircraft Proving Grounds - CG, MAC, Servo & Basic Model Calculators
RC Calculators - C.Gadd. [Servo Torque, Wing Loading, Glow to Electric etc.]

regards
Alan T.
Alan's Hobby, Model & RC Web Links
http://homepages.ihug.co.nz/~atong/
.................................................. .............

"Newbee" <wolf5150gang@hotmail.com> wrote in message
news:Iio4b.84383$xf.73174@lakeread04...
> Without going out and buying one of those balance devices is there a

simple
> inexpensive way of verify proper airplane balance? I was just going to

flip
> it over and place wing lead edge on raised surface to find balance point.
> Any other suggestions? Thanks ahead of time...
>
>



Old Sep 01, 2003, 02:01 AM
Paul McIntosh
Guest
n/a Posts
Re: Aircraft forward/aft balance

Use your finger tips under the wing to find the balance point. Most sport
planes are designed to balance very hear the spar on built-up wings.

--
Paul McIntosh
Desert Sky Model Aviation
http://fly.mcintoshcentral.com
"Newbee" <wolf5150gang@hotmail.com> wrote in message
news:Iio4b.84383$xf.73174@lakeread04...
> Without going out and buying one of those balance devices is there a

simple
> inexpensive way of verify proper airplane balance? I was just going to

flip
> it over and place wing lead edge on raised surface to find balance point.
> Any other suggestions? Thanks ahead of time...
>
>



Old Sep 01, 2003, 02:01 AM
Pé Reivers
Guest
n/a Posts
Re: Aircraft forward/aft balance

Balance on your fingers. The nicest rubbery support around.
Starting balance point at 25% of mean chord. Then let flicht characteristics
guide you through the process of fine tuning to your specific wishes.
There are many good trimming articles on the network.

--
Rgds,

From Arcen, South-East in the Netherlands
preivers
@
mvvs-nl.com
http://mvvs-nl.com/
www.prme.nl


"Newbee" <wolf5150gang@hotmail.com> wrote in message
news:Iio4b.84383$xf.73174@lakeread04...
> Without going out and buying one of those balance devices is there a

simple
> inexpensive way of verify proper airplane balance? I was just going to

flip
> it over and place wing lead edge on raised surface to find balance point.
> Any other suggestions? Thanks ahead of time...
>
>



Old Sep 01, 2003, 02:02 AM
jeboba
Guest
n/a Posts
Re: Aircraft forward/aft balance

Put your fingertips next to the fuselage. NOT out at the wing tips!

"Paul McIntosh" <paul@mcintoshcentral.com> wrote in message
news:bitotg$gqp$1@hercules.btinternet.com...
> Use your finger tips under the wing to find the balance point. Most sport
> planes are designed to balance very hear the spar on built-up wings.
>
> --
> Paul McIntosh
> Desert Sky Model Aviation
> http://fly.mcintoshcentral.com
> "Newbee" <wolf5150gang@hotmail.com> wrote in message
> news:Iio4b.84383$xf.73174@lakeread04...
> > Without going out and buying one of those balance devices is there a

> simple
> > inexpensive way of verify proper airplane balance? I was just going to

> flip
> > it over and place wing lead edge on raised surface to find balance

point.
> > Any other suggestions? Thanks ahead of time...
> >
> >

>
>



 


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