Today's Message Index:
----------------------
1. 05:14 AM - Re: gross weights (Rick Lutes)
2. 04:50 PM - Re: lift struts ()
3. 06:36 PM - J-3 BRAKES ()
4. 06:45 PM - Cub Brakes ()
Message 1
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| Subject: | Re: gross weights |
--> Cub-List message posted by: "Rick Lutes" <rlutes@owc.net>
Del,
I don't know how much a J3 will lift. I guess there are a lot of variables
there: engine size, type of floats, wind & water conditions, length of the
lake, pilot technique...I do know of a 90 HP J3 with two 12 gallon wing
tanks and the fuselage tank. I don't know if it ever flew with full fuel and
two people on board, but my guess is that it did...
Maybe someone else knows more about it and would comment.
Last summer I learned that as the gross weight goes up, the effect of any
C.G. shifts or excursions become much more obvious on floats than on wheels.
I noticed the tails of the floats sit deeper, sometimes submerged, in the
water while taxiing heavy, with aft C.G. (a good reason to keep the aft
compartment access covers well sealed!).
You might want to put an add out on the Barnstormers site or in the SPA
magazine to look for Cub rigging for your EDO's.?
Rick
----- Original Message -----
From: <zoperman@att.net>
Subject: Cub-List: gross weights
> --> Cub-List message posted by: zoperman@att.net
>
> This is good info.I'll spend the money and get the struts.
> I know about stitts process, and I favor the poly tone type as I have
seen
> the need for easy repair on a floatplane.
> I had a 7ccm champ on these edo's, loved it,but the time came to
overhaul
> it and it was wrecked by the fool who worked on it, and he gave me this
cub. I
> took the rating in a cub at Flagler Beach, and I didn't even remember it
untill
> the 1300 gross was mentioned.I remember we had to get some addition wrong
to
> stay under the 1300. I like light weight, every ounce counts.
> Off the record, what might a cub lift in gross weight? We, of course,
> would never violate an FAR, but I'll bet someone has heard. Del.
>
> > *
> >
> > ==================================================
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> >
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> >
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> >
> >
> > ================================================
> > EMail Version of Today's List Digest Archive
> > ================================================
> >
> >
> > Cub-List Digest Archive
> > ---
> > Total Messages Posted Sun 03/09/03: 6
> >
> >
> > Today's Message Index:
> > ----------------------
> >
> > 1. 05:44 AM - struts (zoperman@att.net)
> > 2. 05:44 AM - struts (zoperman@att.net)
> > 3. 05:48 AM - struts (zoperman@att.net)
> > 4. 07:14 AM - Re: lift struts & fabric finishes (Rick Lutes)
> > 5. 07:28 AM - Re: struts (Rick Lutes)
> > 6. 08:15 AM - Re: struts (James Kale)
> >
> >
> >
> > ________________________________ Message 1
> > _____________________________________
> >
> >
> > Time: 05:44:37 AM PST US
> > From: zoperman@att.net
> > Subject: Cub-List: struts
> >
> > --> Cub-List message posted by: zoperman@att.net
> >
> >
> >
> >
> >
> >
> > ________________________________ Message 2
> > _____________________________________
> >
> >
> > Time: 05:44:37 AM PST US
> > From: zoperman@att.net
> > Subject: Cub-List: struts
> >
> > --> Cub-List message posted by: zoperman@att.net
> >
> >
> >
> >
> >
> >
> > ________________________________ Message 3
> > _____________________________________
> >
> >
> > Time: 05:48:26 AM PST US
> > From: zoperman@att.net
> > Subject: Cub-List: struts
> >
> > --> Cub-List message posted by: zoperman@att.net
> >
> > Thanks Jim. 1170 lbs gross weight, I may have the wrong airplane. I
put it
> >
> > on floats, I'll have to put a remote control kit in it to stay
under.Del.
> >
> >
> >
> >
> >
> >
> > ________________________________ Message 4
> > _____________________________________
> >
> >
> > Time: 07:14:14 AM PST US
> > From: "Rick Lutes" <rlutes@owc.net>
> > Subject: Re: Cub-List: lift struts & fabric finishes
> >
> > --> Cub-List message posted by: "Rick Lutes" <rlutes@owc.net>
> >
> > Hi Del,
> >
> > I like Jim's solution to the lift strut inspection required by AD
99-01-05,
> > although it does take a little more time (to exchange struts and inspect
the
> > struts and forks) than spending the money to install sealed struts and
> > accepting the aesthetics of the large forks. There are certainly a lot
of
> > used, serviceable, small fork struts lying around that could be had for
> > little cost. It's nice to have the choice on how to comply with the AD.
> >
> > If you don't have access to a regulatory CD, The FAA web-site
> > http://www2.faa.gov/certification/aircraft/ is a easy way to look at
AD's
> > (post-1940) and Type Certificate Data Sheets.
> >
> > As far as choice of finishes, I'm not familiar with any water based
coatings
> > that have held up over time. I have heard of & seen some that do not
look
> > good after a few years. I would not consider using a "new" process for
> > finishing unless I can see proof of what it will look like after 10
years &
> > some exposure to the sun.
> > Seaplanes present a challenge where it may not be practical to keep them
in
> > a hangar, so their exposure to sun & weather is increased compared to a
land
> > plane or amphib. I would keep this in mind when choosing finishes for a
> > potential floatplane.
> > FWIW, the Air-Tech Coatings finishes are looking very good and hold up
> > well. I see it used on AgCats that stay shiny through harsh exposure to
> > chemicals & cleaners, and I see it used on award winning show planes
(very
> > particular owners). I've not heard anything bad about Air-Tech. That
said,
> > I've always liked Randolph products too.
> >
> > Rick
> >
> > ----- Original Message -----
> > From: <zoperman@att.net>
> > Subject: Cub-List: lift struts
> >
> >
> > > --> Cub-List message posted by: zoperman@att.net
> > >
> > > I am trying to find out about cub lift struts, I see big fork
ends,
> > small
> > > ones, and sealed struts to replace standard ones. I know the APIA I
use
> > will
> > > know all, but for now-.
> > > Thanks for the float rigging help. I 'm looking for used rigging
all
> > made
> > > up.I have champ rigging on the 1400's now.
> > > I have 41 cub project, with metal spar wings. Nothing in the
logbook
> > about
> > > the switch. The wings punched 55 lbs, but further inspection revieled
that
> > the
> > > wings were full of fiberglass insulation,mouse turds, and grass seed,
And
> > of
> > > course, the ribstiching was chewed in two all over . And to make the
> > recover
> > > decision final, the whole airplane is done up to aerothane, without
any
> > silver
> > > at all. Saving a little money, the guy said.
> > > To recover it, put a c90 and wing tank in it, and onto floats is
the
> > goal.
> > > I an leaning toward the waterborn coating system by Aircraft
Finishing
> > > Systems.Anyone seen it. Supposed to be glossy and east to repair,uses
> > ceconite
> > > fabric.
> > > I joined the cub club and ordered a load of info. Later.
> > >
> > >
> >
> >
> >
> >
> >
> >
> > ________________________________ Message 5
> > _____________________________________
> >
> >
> > Time: 07:28:12 AM PST US
> > From: "Rick Lutes" <rlutes@owc.net>
> > Subject: Re: Cub-List: struts
> >
> > --> Cub-List message posted by: "Rick Lutes" <rlutes@owc.net>
> >
> > Del,
> > The gross weight goes up to 1300 lbs when you put on floats. The C.G.
range
> > changes too (depending on the type of floats). You can read about it in
the
> > Type Certificate Data Sheet.
> > FWIW, A friends C90 powered J3 weighs 900 lbs empty, with 1400's
installed.
> > It really pays off to keep the airplane light. You'll appreciate it
> > everytime you break free of the water on take-off!
> > Rick
> > ----- Original Message -----
> > From: <zoperman@att.net>
> > Subject: Cub-List: struts
> >
> >
> > > --> Cub-List message posted by: zoperman@att.net
> > >
> > > Thanks Jim. 1170 lbs gross weight, I may have the wrong airplane.
I
> > put it
> > > on floats, I'll have to put a remote control kit in it to stay
under.Del.
> > >
> > >
> >
> >
> >
> >
> >
> >
> > ________________________________ Message 6
> > _____________________________________
> >
> >
> > Time: 08:15:56 AM PST US
> > From: James Kale <kale@snowhill.com>
> > Subject: Re: Cub-List: struts
> >
> > --> Cub-List message posted by: James Kale <kale@snowhill.com>
> >
> > The sea plane may have different Gross Weights, need to check the type
> > certificate data sheet. My wheel airplane weighed about 670 lbs. with
fuel.
> >
> > Jim
> > ----- Original Message -----
> > From: <zoperman@att.net>
> > Subject: Cub-List: struts
> >
> >
> > > --> Cub-List message posted by: zoperman@att.net
> > >
> > > Thanks Jim. 1170 lbs gross weight, I may have the wrong airplane.
I
> > put it
> > > on floats, I'll have to put a remote control kit in it to stay
under.Del.
> > >
> > >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 2
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--> Cub-List message posted by: <dpgtech@bellsouth.net>
I understand your concerns about staying away from a toxic system, but check whatever
you use carefully. If you are referring to Blue River Systems I heard
that it delaminates.
From
Don Guth
Finished '39 cub restoration in 1999
> From: zoperman@att.net
> Date: 2003/03/08 Sat PM 10:03:47 EST
> To: cub-list@matronics.com
> Subject: Cub-List: lift struts
>
> --> Cub-List message posted by: zoperman@att.net
>
> I am trying to find out about cub lift struts, I see big fork ends, small
> ones, and sealed struts to replace standard ones. I know the APIA I use will
> know all, but for now-.
> Thanks for the float rigging help. I 'm looking for used rigging all made
> up.I have champ rigging on the 1400's now.
> I have 41 cub project, with metal spar wings. Nothing in the logbook about
> the switch. The wings punched 55 lbs, but further inspection revieled that the
> wings were full of fiberglass insulation,mouse turds, and grass seed, And of
> course, the ribstiching was chewed in two all over . And to make the recover
> decision final, the whole airplane is done up to aerothane, without any silver
> at all. Saving a little money, the guy said.
> To recover it, put a c90 and wing tank in it, and onto floats is the goal.
> I an leaning toward the waterborn coating system by Aircraft Finishing
> Systems.Anyone seen it. Supposed to be glossy and east to repair,uses ceconite
> fabric.
> I joined the cub club and ordered a load of info. Later.
>
>
>
>
>
>
>
Message 3
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--> Cub-List message posted by: <dpgtech@bellsouth.net>
For those of you that are tired of servicing your expander tube brakes relief is
on the horizion. Grove Aircraft Brakes has developed disc brakes that will replace
the brake drums and give us hydrolics on our 8.00 x 4 wheels. So now we
can get safe brakes and are able to keep the original tires. Grove is still waiting
for FAA/PMA approval.
Message 4
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--> Cub-List message posted by: <dpgtech@bellsouth.net>
For those of you tired of servicing your expander tube brakes relief is on the
horizon. Grove Aircraft Brakes is in the process of getting Faa/PMA approval
for disc brakes that fit on our Cub 8.00 x 4 wheels. We will be able to get safe
brakes and keep the original tires.
Don Guth
'39 J-3
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