Nose weight

[brianyemail-nsrca at yahoo.com]

Do a web search, you will find a few CG calculators
for full scale that will work for models.


--- John Ferrell <johnferrell at earthlink.net> wrote:
> Make a mold from aluminum foil to go inside the
> fuselage around the nose 
> ring.
> melt the required amount of lead in a can with a
> propane torch.
> Pour lead into mold
> Either glue or screw the weight in place.
> 
> Channel locks work better than straight pliers to
> handle can.
> Lead may be trimmed with pocket knife.
> Silicon (bathtub caulk) is easy to use and remove,
> but has a 24 hour cure 
> time.
> 
> Has anyone put together the math to figure out how
> far from the cg how much 
> weight is needed to move the cg how much?
> Knowns:
>     current cg
>     current airplane weight
>     weight to be added
> Find distance from current CG...
> Or from a reference point?
> 
> John Ferrell
> http://DixieNC.US
> 
> ----- Original Message ----- 
> From: "Steve Wiggin" <swiggin682 at cox.net>
> To: <discussion at nsrca.org>
> Sent: Monday, March 14, 2005 6:26 PM
> Subject: Nose weight
> 
> 
> >I have to add about 2 1/2 oz of weight to the nose
> of my pattern plane for 
> >static balance. Has anyone ever tried pouring
> molten lead into an aluminum 
> >spinner to get the weight as far forward as
> possible? I would probably have 
> >to epoxy the weight in place and balance the
> spinner/weight, and wonder if 
> >this would cause undue stress on the engine
> bearings. Any ideas would be 
> >appreciated.
> > Steve
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