New Focus Question

Bob Pastorello rcaerobob at cox.net
Sat Nov 2 02:59:37 AKST 2002


I have to agree with Tom and Woj here, Earnest.  If a person was very
familiar with the "feel" of their particular plane, and all of a sudden it
was 1 lb heavier, I'd bet a case of fuel that person would know ON TAKEOFF
that something was wrong.
    The first snap would tell for sure.

Bob Pastorello
NSRCA 199, AMA 46373
rcaerobob at cox.net
www.rcaerobats.net


----- Original Message -----
From: "Thomas C. Weedon" <weedon at wwnet.net>
To: <discussion at nsrca.org>
Sent: Saturday, November 02, 2002 5:42 AM
Subject: RE: New Focus Question


> Ernest;
> You would know immediatly when you realized that it took more up trim to
> hold level flight, it took longer to take off with the engine still
> screaming at the usual RPM, it would fall more in the bank, it would stall
> easier, and it would sink like a rock when you cut the throttle to land.
> And that is before you try any maneuvers.
> Tom W.
>
> -----Original Message-----
> From: discussion-request at nsrca.org
> [mailto:discussion-request at nsrca.org]On Behalf Of Ernest Schmidt
> Sent: Friday, November 01, 2002 4:10 PM
> To: discussion at nsrca.org
> Subject: Re: New Focus Question
>
>
> The question I am asking is. If I sneak in and strap on 1lb. to the wing
> tube on your airplane right on the CG and you did not know. Would you be
> able to fly and say someone put more weight on my airplane. I bet you
would
> say I think my engine is not running as well as normal.
>
> > From: "Lee Davis" <lee at piedmontmodels.com>
> > Reply-To: discussion at nsrca.org
> > Date: Fri, 1 Nov 2002 10:38:42 -0500
> > To: <discussion at nsrca.org>
> > Subject: Re: New Focus Question
> >
> > I assume you're talking about weight with fuel on board because the
> weights
> > you list are over the legal limit.  Actually, the 12.5 plane, if its
legal
> > at empty weight, sounds like it has enough fuel on board for a cross
> country
> > flight.
> >
> > As you add weight you lose control response and throttle managment
> options.
> > The empty weight (prior to filling 20 oz tank - remember, these are
fluid
> > oz) of my Focus is 10lb 7oz (there's not a shred of carbon fiber to be
> found
> > on it anywhere) and I can pretty much fly any speed I want in vertical
> > uplines from fast to slow and stately.  If one adds another pound (why?)
> the
> > plane will need to depend more on momentum so has to be flow at a faster
> > speed or risk losing control in the vertical.
> >
> > Lee Davis
> > Piedmont Models
> > http://www.piedmontmodels.com/
> >
> > ----- Original Message -----
> > From: "Ernest Schmidt" <ernest at pldi.net>
> > To: <discussion at nsrca.org>
> > Sent: Friday, November 01, 2002 7:53 AM
> > Subject: New Focus Question
> >
> >
> >> What are the differences in flying of a 11.5lb plane and a 12.5lb
plane.
> >> Same CG just with 1lb on CG. Is it basic loss of vertical or change in
> >> snaps, wind effects, etc.
> >
> >
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> > #
> >
> >
>
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