Wayne,
I think the proper way of saying it is that the aileron hinges attach to
the underside of the top flange of the rear spar of the wing.
Syd
That's a whole new idea for me! Now I need to go out and look at my airplane.
I did have the ailerons replaced some years back, and have been concerned about
the attachment ever since. I have experienced some control problems. To late
to check today, Will look at the earliest.
Thank you
Wayne
----- Original Message -----
From: Syd Cohen
Cc: [email protected]
Sent: Tuesday, January 22, 2008 1:37 PM
Subject: Re: [ercoupe-flyin] Crosswind take offs
Wayne,
I think the proper way of saying it is that the aileron hinges attach to
the underside of the top flange of the rear spar of the wing.
Syd
Wayne Woollard wrote:
My aileron hinges are mounted on top of the wing, under the wing skin,
with shims under one or more of the hinges. Maybe I am misunderstand the
configuration here?
Is there an example or a drawing?
Wayne Woollard
----- Original Message -----
From: Harry L. Francis
To: Tommy Terry
Cc: [email protected]
Sent: Tuesday, January 22, 2008 11:24 AM
Subject: Re: [ercoupe-flyin] Crosswind take offs
Tommy,
The aelirons are properly mounted with the hinges
under the trailing edge of the wing, not on top of the
wing. This makes the aelirons trail the wing surface.
IF the hinges are Mounted on top of the wing surface,
the ailerons then mount about 1/2 inch above the
surface of the trailing edge of the wing, causing a
whole lot of drag...and about 10 mph of airspeed.
It also changes the geometry of the ailerons, and may
create a dangerous condition when using large amounts
of aeliron control, possibly causing the Coupe to fly
in a cross control condition during turns.
Everyone should check and be sure the aelirons are
mounted properly.
Fly Safe - Have Fun
Harry Francis
--- Tommy Terry <[EMAIL PROTECTED]> wrote:
> Harry, tell me more about the position of the
> aileron
> hinges. Thanks
>
> Tommy
>
> On Tue, 22 Jan 2008 11:10:23 -0800 (PST)
> "Harry L. Francis" <[EMAIL PROTECTED]>
> wrote:
> >Rick, Glad you got the aelirons re-mounted.
> >
> >I have fussed several times/years about the coupe
> at
> >Sun & Fun Museum...aelirons are mounted
> >improperly..Bad Example.. Hope they have it fixed
> this
> >year ! :)
> >
> >Fly Safe - Have Fun
> >
> >Harry
> >--- Rick Green <[EMAIL PROTECTED]> wrote:
> >
> >> Excellent point Harry,
> >>
> >> My ex had an ercoupe which sat about two inches
> low
> >> in
> >> the tail. The handling on that was very
> squirrely
> >> compared to mine. Shimming the gear fixed the
> >> problem.
> >>
> >> Point is - if the plane is acting squirrely in
> >> take-offs - check the level!!!
> >>
> >> Another issue I had when I bought mine and after
> one
> >> annual... a veteran couper pointed out that the
> >> ailerons were mounted with the hinge on the top
> of
> >> the
> >> wing. (What did I know, then?)
> >> Remounting the ailerons gained about 10 mph - and
> >> much
> >> more control. Mechanics aren't all up to speed
> on
> >> Ercoupes -- have a good Coupe man look it over!!
> >>
> >> Rick N93686
> >>
> >>
> >>
> >> --- "Harry L. Francis" <[EMAIL PROTECTED]>
> >> wrote:
> >>
> >> > Rick, You have it right.... The reason that
> >> holding
> >> > a
> >> > little pressure on the controls works, is that
> in
> >> a
> >> > static position, the wings are in a no lift
> angle
> >> of
> >> > attack (as designed by Weick - and only if the
> >> tail
> >> > is
> >> > at the proper height - level window edges on a
> >> level
> >> > surface). In this position the ercoupe will not
> >> fly
> >> > even at 120 mph (as noticed in the piots manual
> on
> >> > landing speeds - pointing out that the ercoupe
> >> will
> >> > not baloon when landing as high as 120 mph)
> >> >
> >> > So this is the real reason for setting the
> >> airplane
> >> > level by shimming the main gear struts,
> especially
> >> > when utiizing a double fork nose gear, which is
> >> > about
> >> > 2 Inches longer than the single fork - pushing
> >> down
> >> > the tail. ....making the wings become positive
> >> angle
> >> > of attack, and no longer as specified by
> design.
> >> >
> >> > Yes, hold a little forward pressure until
> reaching
> >> > about 70 mph indicated, then pop off the ground
> by
> >> > applying slight back pressure.
> >> >
> >> > The coupe will then pop off, and immediately
> swing
> >> > to
> >> > a crabbed climb position flying straight down
> the
> >> > runway.
> >> >
> >> > If a double fork was installed on aircraft
> using
> >> the
> >> > original rubber doughnuts, the main gear struts
> >> need
> >> > to be shimmed in order to attain the proper
> static
> >> > position. Forney introduced the double fork
> nose
> >> > gear
> >> > along with the Belleville springs, replacing
> the
> >> > rubber doughnuts. Their idea was that the
> >> Belleville
> >> > springs would absorb rough taxi areas better
> than
> >> > the
> >> > rubber doughnuts. This may be true, but with
> >> fairly
> >> > smooth modern runways, I think the rubber
> >> dsoughnuts
> >> > work fine --- if shimmed properly...ie: level
> the
> >> > airplane with sufficient shims on the main
> struts
> >> > (generally about 7/16 inch collars)..creating a
> >> tail
> >> > height about 77 inches, slightly above the
> >> original
> >> > specs of 75 inches...making sure the window
> edges
> >> > are
> >> > level...when the airplne is sitting on a level
> >> pad.
> >> >
> >> > Fly Safe - Have Fun
> >> >
> >> > Harry Francis
> >> >
> >> >
> >> > --- Rick Green <[EMAIL PROTECTED]> wrote:
> >> >
> >> > > Robert,
> >> > >
> >> > > Glen is spot-on. I have had several takeoffs
> >> with
> >> > a
> >> > > 20 knot crosswind and a twenty-five foot wide
> >> > strip.
> >> > >
> >> > > The key (I've found) is to hold it down and
> >> steer
> >> > > straight down the runway. I actually let the
> >> > speed
> >> > > build to about 70 and pop it off - it will
> >> > > immediately
> >> > > crab into the wind and just hold it for the
> >> runway
> >> > > heading.
> >> > >
> >> > > Unlike a cessna that floats off the runway
> >> > > immediately, Fred Weick designed the Ercoupe
> so
> >> > that
> >> > > it cannot lift off until rotated. I had to
> do a
> >> > > full
> >> > > speed run down a long runway to prove this to
> >> > > myself.
> >> > > But if you keep the front wheel planted for
> >> > > steering,
> >> > > you can go full speed and not lift off.
> >> > >
> >> > > On a shorter field I might opt to rotate at a
> >> > slower
> >> > > speed - but, I've had no issues with getting
> up
> >> to
> >> > > speed and popping it off. Kinda fun
> actually.
> >> > >
> >> > > I was on an airport that had five ercoupes at
> >> one
> >> > > time, and on several Saturday mornings of
> brisk
> >> > > winds
> >> > > coming off of Lake Michigan, the Ercoupes
> were
> >> > doing
> >> > > touch and goes on cross runways - while the
> >> other
> >> > > pilots drank coffee in the terminal.
> >> > >
> >> > > Admittedly, the first few were
> white-knucklers,
> >> > > until
> >> > > you reach that moment that you go "HEY - THIS
> IS
>
=== message truncated ===
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