<br><font size=2 face="sans-serif">John </font>
<br>
<br><font size=2 face="sans-serif">Yours is the first post with a technical
reasoning for sweep, and it makes sense. I of course have a AeroSlave Symphony
with an ES gear and have not experienced ground issues. I am sure other
designs do have issues as you describe. How common is this problem?<br>
</font>
<br><font size=2 face="sans-serif"><br>
<br>
<br>
Gray Fowler<br>
Senior Principal Chemical Engineer<br>
Radomes and Specialty Apertures<br>
Technical Staff Composites Engineering<br>
Raytheon</font>
<br>
<br>
<br>
<table width=100%>
<tr valign=top>
<td width=40%><font size=1 face="sans-serif"><b>John Pavlick <jpavlick@idseng.com></b>
</font>
<br><font size=1 face="sans-serif">Sent by: nsrca-discussion-bounces@lists.nsrca.org</font>
<p><font size=1 face="sans-serif">01/16/2009 11:13 AM</font>
<table border>
<tr valign=top>
<td bgcolor=white>
<div align=center><font size=1 face="sans-serif">Please respond to<br>
jpavlick@idseng.com; Please respond to<br>
General pattern discussion <nsrca-discussion@lists.nsrca.org></font></div></table>
<br>
<td width=59%>
<table width=100%>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">General pattern discussion <nsrca-discussion@lists.nsrca.org></font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [NSRCA-discussion] BOLLY out of
business</font></table>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br>
<br>
<br>
<table>
<tr valign=top>
<td><font size=3>Gray,</font>
<br><font size=3> 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. </font>
<br><font size=3>If Pattern planes were designed with the gear location
further back, we wouldn't need swept gear.</font>
<br><font size=3> </font>
<br><font size=3>John Pavlick</font>
<br><font size=3><br>
--- On <b>Fri, 1/16/09, Gray E Fowler <i><gfowler@raytheon.com></i></b>
wrote:</font>
<br><font size=3>From: Gray E Fowler <gfowler@raytheon.com><br>
Subject: Re: [NSRCA-discussion] BOLLY out of business<br>
To: "General pattern discussion" <nsrca-discussion@lists.nsrca.org><br>
Date: Friday, January 16, 2009, 4:37 PM<br>
</font>
<br><font size=2 face="sans-serif"><br>
Why do you prefer sweep?</font><font size=3><br>
</font><font size=2 face="sans-serif"><br>
<br>
<br>
<br>
Gray Fowler<br>
Senior Principal Chemical Engineer<br>
Radomes and Specialty Apertures<br>
Technical Staff Composites Engineering<br>
Raytheon</font><font size=3> <br>
<br>
</font>
<br>
<table width=100%>
<tr valign=top>
<td width=47%><font size=1 face="sans-serif"><b>Richard Strickland <pamrich47@hotmail.com></b>
<br>
Sent by: nsrca-discussion-bounces@lists.nsrca.org</font><font size=3> </font>
<br><font size=1 face="sans-serif">01/15/2009 05:17 PM</font><font size=3>
</font>
<br>
<table border=4>
<tr valign=top>
<td bgcolor=white>
<div align=center><font size=1 face="sans-serif">Please respond to<br>
General pattern discussion <nsrca-discussion@lists.nsrca.org></font></div></table>
<br>
<td width=52%>
<table width=100%>
<tr valign=top>
<td width=11%>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td width=88%><font size=1 face="sans-serif">General pattern discussion
<nsrca-discussion@lists.nsrca.org></font><font size=3> </font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [NSRCA-discussion] BOLLY out of
business</font></table>
<br>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br><font size=3><br>
<br>
</font><font size=2 face="Verdana"><br>
If I were to complain about anything on Matt's gear (I'm not) I would prefer
a <i>little</i> 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.<br>
<br>
RS<br>
<br>
</font><font size=3><br>
</font>
<hr><font size=2 face="Verdana"><br>
To: nsrca-discussion@lists.nsrca.org<br>
From: gfowler@raytheon.com<br>
Date: Thu, 15 Jan 2009 16:56:48 -0600<br>
Subject: Re: [NSRCA-discussion] BOLLY out of business<br>
</font><font size=2 face="sans-serif"><br>
<br>
Anthony</font><font size=2 face="Verdana"> </font><font size=2 face="sans-serif"><br>
<br>
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. <br>
<br>
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?<br>
<br>
<br>
<br>
<br>
Gray Fowler<br>
Senior Principal Chemical Engineer<br>
Radomes and Specialty Apertures<br>
Technical Staff Composites Engineering<br>
Raytheon</font><font size=2 face="Verdana"> <br>
<br>
</font>
<br>
<table width=100%>
<tr valign=top>
<td width=57%><font size=1 face="sans-serif"><b>Anthony Romano <anthonyr105@hotmail.com></b>
<br>
Sent by: nsrca-discussion-bounces@lists.nsrca.org</font><font size=3 face="Verdana">
</font><font size=1 face="sans-serif">01/15/2009 04:18 PM</font><font size=3 face="Verdana">
</font>
<br>
<table border=4>
<tr valign=top>
<td bgcolor=white>
<div align=center><font size=1 face="sans-serif">Please respond to<br>
General pattern discussion <nsrca-discussion@lists.nsrca.org></font></div></table>
<br><font size=3 face="Verdana"><br>
</font>
<td width=42%>
<table width=100%>
<tr valign=top>
<td width=14%>
<div align=right><font size=1 face="sans-serif">To</font></div>
<td width=85%><font size=1 face="sans-serif"><nsrca-discussion@lists.nsrca.org></font><font size=3 face="Verdana">
</font>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">cc</font></div>
<td>
<tr valign=top>
<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [NSRCA-discussion] BOLLY out of
business</font></table>
<br><font size=3><br>
</font>
<br>
<table>
<tr valign=top>
<td>
<td></table>
<br></table>
<br><font size=2 face="Verdana"><br>
<br>
<br>
<br>
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. <br>
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. <br>
<br>
Anthony<br>
<br>
</font><font size=3><br>
</font>
<hr><font size=2 face="Verdana"><br>
From: jlachow@hotmail.com<br>
To: nsrca-discussion@lists.nsrca.org<br>
Date: Thu, 15 Jan 2009 15:59:26 -0500<br>
Subject: Re: [NSRCA-discussion] BOLLY out of business<br>
<br>
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.<br>
</font><font size=3><br>
</font>
<hr><font size=2 face="Verdana"><br>
From: tony@radiosouthrc.com<br>
To: nsrca-discussion@lists.nsrca.org<br>
Date: Thu, 15 Jan 2009 15:00:23 -0500<br>
Subject: Re: [NSRCA-discussion] BOLLY out of business<br>
</font><font size=2 color=#000080 face="Arial"><br>
<br>
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…</font><font size=2 face="Verdana">
<br>
<br>
</font><font size=2 color=#000080 face="Arial"><br>
Tony Stillman, President</font><font size=2 face="Verdana"> </font><font size=2 color=#000080 face="Arial"><br>
Radio South, Inc.</font><font size=2 face="Verdana"> </font><font size=2 color=#000080 face="Arial"><br>
139 Altama Connector, Box 322</font><font size=2 face="Verdana"> </font><font size=2 color=#000080 face="Arial"><br>
Brunswick, GA 31525</font><font size=2 face="Verdana"> </font><font size=2 color=#000080 face="Arial"><br>
1-800-962-7802</font><font size=2 face="Verdana"> </font><font size=2 color=#000080 face="Arial"><br>
www.radiosouthrc.com</font><font size=2 face="Verdana"> </font>
<div align=center>
<br><font size=3><br>
</font>
<hr></div>
<br><font size=2 face="Tahoma"><b><br>
<br>
From:</b> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]
<b>On Behalf Of </b>Woodward, Jim (US SSA)<b><br>
Sent:</b> Thursday, January 15, 2009 2:52 PM<b><br>
To:</b> General pattern discussion<b><br>
Subject:</b> Re: [NSRCA-discussion] BOLLY out of business</font><font size=2 face="Verdana">
<br>
</font><font size=2 color=#004080 face="Calibri"><br>
Tony,</font><font size=2 face="Verdana"> <br>
</font><font size=2 color=#004080 face="Calibri"><br>
Luiz at Net Box Hobby carrys the CA carbon gear.</font><font size=2 face="Verdana">
<br>
</font><font size=2 color=#004080 face="Arial"><br>
Thanks,</font><font size=2 face="Verdana"> </font><font size=2 color=#004080 face="Arial"><br>
Jim</font><font size=2 face="Verdana"> </font><font size=2 face="Tahoma"><b><br>
From:</b> nsrca-discussion-bounces@lists.nsrca.org [mailto:nsrca-discussion-bounces@lists.nsrca.org]
<b>On Behalf Of </b>Tony<b><br>
Sent:</b> Thursday, January 15, 2009 2:36 PM<b><br>
To:</b> 'General pattern discussion'<b><br>
Subject:</b> [NSRCA-discussion] BOLLY out of business</font><font size=2 face="Verdana">
<br>
</font><font size=2 face="Arial"><br>
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. </font><font size=2 face="Verdana"> <br>
</font><font size=2 face="Arial"><br>
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…</font><font size=2 face="Verdana"> <br>
<br>
<br>
</font><font size=2 face="Arial"><br>
Tony Stillman, President</font><font size=2 face="Verdana"> </font><font size=2 face="Arial"><br>
Radio South, Inc.</font><font size=2 face="Verdana"> </font><font size=2 face="Arial"><br>
139 Altama Connector, Box 322</font><font size=2 face="Verdana"> </font><font size=2 face="Arial"><br>
Brunswick, GA 31525</font><font size=2 face="Verdana"> </font><font size=2 face="Arial"><br>
1-800-962-7802</font><font size=2 face="Verdana"> </font><font size=2 face="Arial"><br>
www.radiosouthrc.com</font><font size=2 face="Verdana"> <br>
</font><font size=3> </font><font size=2 face="Verdana"><br>
</font><font size=3><br>
</font>
<hr><font size=2 face="Verdana">Windows Live™ Hotmail®: Chat. Store. Share.
Do more with mail. </font><a href="http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbetter_howitworks_012009" target=_blank><font size=2 color=blue face="Verdana"><u>See
how it works.</u></font></a><font size=3><br>
</font>
<hr><font size=2 face="Verdana">Windows Live™ Hotmail®: Chat. Store. Share.
Do more with mail. </font><a href="http://windowslive.com/howitworks?ocid=TXT_TAGLM_WL_t1_hm_justgotbetter_howitworks_012009" target=_blank><font size=2 color=blue face="Verdana"><u>See
how it works.</u></font></a><font size=2 face="Verdana">_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion <br>
<br>
<br>
</font><font size=3><br>
</font>
<hr><font size=2 face="Verdana">Windows Live™: Keep your life in sync.
</font><a href="http://windowslive.com/explore?ocid=TXT_TAGLM_WL_t1_allup_explore_012009" target=_blank><font size=2 color=blue face="Verdana"><u>Check
it out.</u></font></a><tt><font size=2>_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</font></tt><font size=3>
<br>
<br>
</font>
<br><tt><font size=3>_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</font></tt></table>
<br><tt><font size=2>_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</font></tt>
<br>
<br>
<br>