FOCUS gear Mod.

[ronlock]

The Landing description in the mid 1980s said that main wheels had
to touch first.   The accepability of a three (3) point landing by  a
conventional gear bird was not  mentioned.  It didn't  matter much then,
as practically  all pattern birds were nose wheel types.  With the
introduction of "turnaround"  schedules, and K-Factors in the
mid/late 80s, pilots started discarding the weight of the  nose wheel.
Around the 86 to 90 rule book, the addition of  3 point landings was
added as  an appropriate update.

Ron  Lockhart

----- Original Message -----
From: "Henderson,Eric" <Eric.Henderson at gartner.com>
To: <discussion at nsrca.org>
Sent: Friday, February 28, 2003 12:54 PM
Subject: RE: FOCUS gear Mod.


Gene,
       "Dragging the tail" is an expression meant to indicate that the nose
is being held higher than usual. The idea being to create high planform-drag
and a desired slowing-down effect. To do a three point landing or just have
the mains touch first, you need to fly the plane in slowly that way. I am
sure I did not say "drag your tail along the runway".

BTW - I never really understood the purpose of "that" rule. What was it
preventing??? Anyone old enough to recall its inception?


Eric.


-----Original Message-----
From: gene.maurice at attbi.com [mailto:gene.maurice at attbi.com]
Sent: Friday, February 28, 2003 12:44 PM
To: discussion at nsrca.org
Subject: Re: FOCUS gear Mod.


Eric,

I was under the impression that "dragging the tail in" is a no-no.

Per the rule book:
"Landing. The landing maneuver will start two (2)meters from the ground. The
model flares smoothly to a nose-high attitude, dissipating flying speed,
then
smoothly touching the ground, within the landing zone, with the main wheels
first, with no bouncing or changes in heading after touch down. The nose
wheel
on a tricycle gear and the tail wheel on a conventional gear (unless a three
(3) point landing of mains and tail wheel touching simultaneously is
executed)
should settle gently to the ground after a brief rollout."

Am I mistaken?
--
Gene Maurice
gene.maurice at attbi.com
NSRCA 877
AMA 3408
> I would suggest using a swept landing gear al la Hydeout or Temptation. I
tried
> a set of retract wings on a Focus and noted a couple of inches difference
in the
> wheel positions. Also initial landings tended to bounce if you came in too
hot.
> The wheels work in the current position and you soon learn to land it that
way
> by dragging the tail in! . However the plane will bounce less if you can
sweep
> the gear back.
>
> The problem, that you already identified, is that you have to widen the
gear
> plate to accommodate the wider U/C legs that are available in CF. They put
the
> gear plate as far back as they could - it almost touched the wing - but
the
> plate is tricky to widen.
>
> My recommendation is to replace the existing plate with a plywood box to
stop
> the bolted part flexing. You could leave the trailing 1/4" rail in place.
Cut
> through forward to accommodate the wider U/C-leg-top. Fit a 3/16" "box
plate and
> glue to the   former as well. It is more work, but it is winter and you
will not > regret a stronger landing gear support on this plane, plus it
will be easier to
> score higher on landings..
>
> Regards,
>
> Eric.
>
> -----Original Message-----
> From: John Crozier [mailto:sjcrozier at comcast.net]
> Sent: Friday, February 28, 2003 10:43 AM
> To: nsrca discussion
> Subject: focus gear
>
>
> Anybody using Bolly gear on the Focus?
> I don't want to do major mods on the landing gear platform.
> The Sukhoi style has been suggested, but I can't find it on the Bolly web
> site.
> Is the swept back design of the F3A large too drastic?
> thanx...croz
>
>
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