Elan trouble

Jim Ivey jivey61 at bellsouth.net
Thu Jun 30 08:47:14 AKDT 2005 

   Hummph
 I coulda said fat girl.......wanna start something?

Jim I
> 
> From: "Nat Penton" <natpenton at centurytel.net>
> Date: 2005/06/30 Thu PM 12:43:58 EDT
> To: <discussion at nsrca.org>
> Subject: Re: Re: Elan trouble
> 
> OK Jim , you've gone too far. Let's leave the fat boy out of this.
> 
> ----- Original Message ----- 
> From: "Jim Ivey" <jivey61 at bellsouth.net>
> To: <discussion at nsrca.org>
> Sent: Wednesday, June 29, 2005 10:25 PM
> Subject: Re: Re: Elan trouble
> 
> 
> >
> >> Ken
> > Good theory. It's like the moments on a see-saw. The fat boy has to sit 
> > closer to the pivot than the skinny guy.
> >
> > Jim Ivey
> >> From: "Ken Thompson" <mrandmrst at comcast.net>
> >> Date: 2005/06/29 Wed PM 09:56:35 EDT
> >> To: <discussion at nsrca.org>
> >> Subject: Re: Elan trouble
> >>
> >> Jerry,
> >> I was having a problem balancing a plane a couple of years ago.  I 
> >> figured
> >> out that weight on the tail has about 4 times the balancing effect that
> >> weight on the nose does.  This is due to the fact that my plane had about 
> >> 4
> >> times the distance to the CG than the firewall did.
> >> This could be the effect of your glass and paint on your tail feathers, 3
> >> extra oz. of glass and paint would be close to the weight you need on the
> >> nose to balance, if you use the multiple of 4.
> >>
> >> Just a theory,
> >>
> >> Ken
> >> ----- Original Message ----- 
> >> From: "Jerry Wilson" <JWilsonJr at houston.rr.com>
> >> To: <discussion at nsrca.org>
> >> Sent: Wednesday, June 29, 2005 9:35 PM
> >> Subject: RE: Elan trouble
> >>
> >>
> >> > Jim,
> >> >
> >> > I don't know why it is tail heavy.  I was very surprised.  CG is noted 
> >> > on
> >> > the plan. Fuselage is painted as are horizontal stab, elevator, and 
> >> > rudder
> >> > which were also glassed.    Could be my glassing and paint job is heavy
> >> > although I would not have thought so much weight could be attributed to
> >> > this.  Rudder and Elevator servos are over the wing trailing edge as 
> >> > per
> >> > plan.  Battery pack has been moved to the firewall.  Used Central 
> >> > carbon
> >> > fiber push rod for elevator to MK dual bellcrank and MK control horns.
> >> > Push
> >> > pull cable on rudder.  Receiver and throttle servo are about at the CG.
> >> >
> >> > Jerry
> >> >
> >> > -----Original Message-----
> >> > From: discussion-request at nsrca.org 
> >> > [mailto:discussion-request at nsrca.org]
> >> > On
> >> > Behalf Of Jim Ivey
> >> > Sent: Wednesday, June 29, 2005 5:24 AM
> >> > To: discussion at nsrca.org
> >> > Subject: Re: Elan trouble
> >> >
> >> > Jerry
> >> > Why is it  tail heavy. Maybe you are using the wrong CG point or did 
> >> > you
> >> > put servos in the tail? Is the tail painted. I think figure out why, 
> >> > then
> >> > solve the problem that way instead of adding all that weight.?
> >> >
> >> > Jim Ivey>
> >> >> From: "Jerry Wilson" <JWilsonJr at houston.rr.com>
> >> >> Date: 2005/06/29 Wed AM 07:14:53 EDT
> >> >> To: <discussion at nsrca.org>
> >> >> Subject: Elan trouble
> >> >>
> >> >> I have a dilemma and could use some advice from the group.
> >> >>
> >> >>
> >> >>
> >> >> After over a year of building I have nearly completed my Elan which is 
> >> >> my
> >> >> first attempt to build a fiberglass fuse pattern ship.  It is painted,
> >> >> covered, servos, push rods, and engine (120 four stroke) installed.
> >> > Weighs
> >> >> about 9 lbs.  Looks pretty nice.
> >> >>
> >> >>
> >> >>
> >> >> The trouble is to get it to balance at the CG point on the plan (8" 
> >> >> from
> >> >> wing LE) requires 11 oz in the nose.
> >> >>
> >> >>
> >> >>
> >> >> According to Dick Hansen's plan the weight should be 8 - 10 lbs.  So 
> >> >> it
> >> >> is
> >> >> still within the design range, at ~9.75 lbs.  But even if I can figure 
> >> >> a
> >> > way
> >> >> to add 11 oz of weight to the nose, I'm afraid the plane will not fly 
> >> >> the
> >> >> pattern well and am having serious doubts completing.  My intentions 
> >> >> were
> >> > to
> >> >> fly one or two more Sportsman contests with it and then move on to
> >> >> Intermediate.  Would appreciate some opinions/advice from the group:
> >> >>
> >> >>
> >> >>
> >> >> Should I try to figure out a way to add 11 oz wt. to the nose securely
> >> >> and
> >> >> finish the plane?
> >> >>
> >> >>
> >> >>
> >> >> Or abandon the ship and move on to something else?
> >> >>
> >> >>
> >> >>
> >> >> TIA
> >> >>
> >> >> Jerry
> >> >>
> >> >>
> >> >>
> >> >
> >> > =================================================
> >> > To access the email archives for this list, go to
> >> > http://lists.f3a.us/pipermail/nsrca-discussion/
> >> > To be removed from this list, go to 
> >> > http://www.nsrca.org/discussionA.htm
> >> > and follow the instructions.
> >> >
> >> > List members email returned for mailbox full will be removed from the
> >> > list.
> >> >
> >> >
> >> >
> >> > =================================================
> >> > To access the email archives for this list, go to
> >> > http://lists.f3a.us/pipermail/nsrca-discussion/
> >> > To be removed from this list, go to 
> >> > http://www.nsrca.org/discussionA.htm
> >> > and follow the instructions.
> >> >
> >> > List members email returned for mailbox full will be removed from the
> >> > list.
> >> >
> >>
> >> =================================================
> >> To access the email archives for this list, go to
> >> http://lists.f3a.us/pipermail/nsrca-discussion/
> >> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> >> and follow the instructions.
> >>
> >> List members email returned for mailbox full will be removed from the 
> >> list.
> >>
> >>
> >
> > =================================================
> > To access the email archives for this list, go to
> > http://lists.f3a.us/pipermail/nsrca-discussion/
> > To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> > and follow the instructions.
> >
> > List members email returned for mailbox full will be removed from the 
> > list.
> >
> >
> >
> >
> > -- 
> > Internal Virus Database is out-of-date.
> > Checked by AVG Anti-Virus.
> > Version: 7.0.323 / Virus Database: 267.7.10/25 - Release Date: 6/21/2005
> >
> > 
> 
> 
> 
> -- 
> Internal Virus Database is out-of-date.
> Checked by AVG Anti-Virus.
> Version: 7.0.323 / Virus Database: 267.7.10/25 - Release Date: 6/21/2005
> 
> =================================================
> To access the email archives for this list, go to
> http://lists.f3a.us/pipermail/nsrca-discussion/
> To be removed from this list, go to http://www.nsrca.org/discussionA.htm
> and follow the instructions.
> 
> List members email returned for mailbox full will be removed from the list.
> 
> 

=================================================
To access the email archives for this list, go to
http://lists.f3a.us/pipermail/nsrca-discussion/
To be removed from this list, go to http://www.nsrca.org/discussionA.htm
and follow the instructions.

List members email returned for mailbox full will be removed from the list.

More information about the NSRCA-discussion mailing list