[NSRCA-discussion] BOLLY out of business

Fri Jan 16 08:48:13 AKST 2009

Multiple bounces or oscillation on landing is also caused by forward gear
placement.
Jim

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of John Pavlick
Sent: Friday, January 16, 2009 9:09 AM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] BOLLY out of business

Gray,
 My understanding of why we try to move the wheels as close to the C.G as
possible is to increase yaw stability on the ground (decrease the tendency
to ground loop). Tail draggers are inherently unstable because the landing
gear is located in front of the C.G. Since we don't have brakes on modern
Pattern planes, the wheels can be pretty far back without causing much of a
problem. Especially on smooth surfaces. The closer you place the wheels to
the nose of the airplane (further ahead of the C.G.), the more tendency
there is to ground loop. Also, it sometimes makes it hard to get the plane
to rotate if the wheels are too far forward.
If Pattern planes were designed with the gear location further back, we
wouldn't need swept gear.

John Pavlick

--- On Fri, 1/16/09, Gray E Fowler <gfowler at raytheon.com> wrote:
From: Gray E Fowler <gfowler at raytheon.com>
Subject: Re: [NSRCA-discussion] BOLLY out of business
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Date: Friday, January 16, 2009, 4:37 PM

Why do you prefer sweep?

Gray Fowler
Senior Principal Chemical Engineer
Radomes and Specialty Apertures
Technical Staff Composites Engineering
Raytheon

Richard Strickland <pamrich47 at hotmail.com>
Sent by: nsrca-discussion-bounces at lists.nsrca.org
01/15/2009 05:17 PM
Please respond to
General pattern discussion <nsrca-discussion at lists.nsrca.org>
To
General pattern discussion <nsrca-discussion at lists.nsrca.org>
cc

Subject
Re: [NSRCA-discussion] BOLLY out of business

If I were to complain about anything on Matt's gear (I'm not) I would prefer
a little sweep which would preclude 'a one side fits both" arrangement.  How
are most of you guys mounting them--two or three bolts? I've been using
three 4-40s but just bought one and the former owner had two per side.

RS

  _____

To: nsrca-discussion at lists.nsrca.org
From: gfowler at raytheon.com
Date: Thu, 15 Jan 2009 16:56:48 -0600
Subject: Re: [NSRCA-discussion] BOLLY out of business

Anthony

What did you think about the ES gear twist? That is the wheel going toe in-
toe out hitting small bumps. ES had nothing but zero degree fibers. That is
the one design issue I am conteplating at the moment.

Also considering that all new planes are widebody that is what needs to be
addressed..BUT having a 1 continuous gear will be more weight. I am thinking
it is better to split the gear for a weight savings.  If we make two pieces,
and either piece can be a left or a right, then a broken gear is only on one
side. Any advantage to that?

Gray Fowler
Senior Principal Chemical Engineer
Radomes and Specialty Apertures
Technical Staff Composites Engineering
Raytheon

Anthony Romano <anthonyr105 at hotmail.com>
Sent by: nsrca-discussion-bounces at lists.nsrca.org 01/15/2009 04:18 PM
Please respond to
General pattern discussion <nsrca-discussion at lists.nsrca.org>
To
<nsrca-discussion at lists.nsrca.org>
cc

Subject
Re: [NSRCA-discussion] BOLLY out of business

Graph Tech is not for us. I am sure their stuff is well suited for the IMAC
style planes that they are designed for but too heavy and way too stiff for
our use.
I went through their website and picked a gear based on dimension of the ES.
2+ ounces heavier and twice as thick with zero flex. Broke the gear out of
my Black Magic many times when hitting small holes in the runway. Rick
donated his ES gear and life has been much better.

Anthony

  _____

From: jlachow at hotmail.com
To: nsrca-discussion at lists.nsrca.org
Date: Thu, 15 Jan 2009 15:59:26 -0500
Subject: Re: [NSRCA-discussion] BOLLY out of business

Anyone have any luck with the Graph Tech RC stuff?  Only experience was with
some smaller electrics that worked just fine. They have carbon pants and
spinners, as well.
  _____

From: tony at radiosouthrc.com
To: nsrca-discussion at lists.nsrca.org
Date: Thu, 15 Jan 2009 15:00:23 -0500
Subject: Re: [NSRCA-discussion] BOLLY out of business

Thanks, Jim.  Those are $112.00 I think… about double that of the Bolly….
Not sure how that will go….. but if there are no other choices…

Tony Stillman, President
Radio South, Inc.
139 Altama Connector, Box 322
Brunswick, GA  31525
1-800-962-7802
www.radiosouthrc.com

  _____

From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Woodward, Jim
(US SSA)
Sent: Thursday, January 15, 2009 2:52 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] BOLLY out of business

Tony,

Luiz at Net Box Hobby carrys the CA carbon gear.

Thanks,
Jim
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Tony
Sent: Thursday, January 15, 2009 2:36 PM
To: 'General pattern discussion'
Subject: [NSRCA-discussion] BOLLY out of business

I just received conformation that BOLLY has gone out of business.
Unfortunately, this is a major supplier of CF landing gear and wheel pants.
I have been awaiting a shipment of several items, and now it does not look
like that will happen.  I am working now to determine if there are any
gear/wheel pants available.

The really bad thing is that I am not sure what options we have left, other
than going with a kit/arf manufacturer’s gear.  Ed Skorpa dropped his gear
last year…

Tony Stillman, President
Radio South, Inc.
139 Altama Connector, Box 322
Brunswick, GA  31525
1-800-962-7802
www.radiosouthrc.com

  _____

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