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Message-ID: <63163d560703061345t9fde681uffa825f02052a180@mail.gmail.com>
Date: Tue, 6 Mar 2007 16:45:29 -0500
From: "Thomas Jakits" <rotary.thjakits@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Engine choise for BD-4 (changed from "Hard Landing ")
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I thought so..

The idea is to keep the speed, but make the BD-4 more rough field capable,
shock absorbing without too much rebound would be the ideal thing:
Like the air-bumps on Baja-Racers....

Thomas

On 3/6/07, wrjjrs@aol.com <wrjjrs@aol.com> wrote:
>
> Thomas, The biggest problem there is, "Does not or barely rebound". The
> different weights is also tough, but with carbon you could design strong
> enough for a 4 seater but it would be a bit stiff when unloaded.
> Bill Jepson
>
>
> -----Original Message-----
> From: rotary.thjakits@gmail.com
> To: flyrotary@lancaironline.net
> Sent: Tue, 6 Mar 2007 12:18 PM
> Subject: [FlyRotary] Re: Engine choise for BD-4 (changed from "Hard
> Landing ")
>
> I think in one of the old newsletters there was talk about fibreglass
> landing gear...
> Anyone out there with the know how  to "tune" the gear to specific
> properties?
> I like Lynn's idea of using something "designed" like the Stinson gear
> (need to look that up, any links...?).
> Already thought about  "Airbag"-suspension, a la Hornet
> (Challenger-derivative...)
>
> At the end the best designed gear does not need any adjusting..
> Who has the expertise to make/design a glass/carbon gear, that:
>
> Absorbs shock
> does it progressively
> Does not or barely rebound
> Can accommodate different weights (4 seater)
>
> I understand one can play with different fibers, orientation, different
> resins, etc.
> But where to start?? :))
>
> Thomas
>
>
>
> On 3/6/07, Bob White <rlwhite@comcast.net> wrote:
> >
> > On Tue, 6 Mar 2007 11:24:35 EST
> > Lehanover@aol.com wrote:
> >
> > <snip>
> > >
> > > I don't remember the Whitman geared BD-4. I was thinking about a
> > Cessna  main
> > > gear, but I found a complete assembly at Sun&Fun and I could not
> > pick  it up.
> > > So, I forgot about it.
> > <snip>
> > > Lynn E. Hanover
> > > <BR><BR><BR>**************************************<BR> AOL now offers
> > free
> > > email to everyone.  Find out more about what's free from AOL at
> > > http://www.aol.com.
> > >
> > I just tested the durability of the BD style gear made from 7075
> > aluminum.  After ripping them completely off the landing gear box, they
> > are in perfect condition.
> >
> > Bob W.  (Leaving to do more paperwork with the FAA.)
> >
> > --
> > N93BD - Rotary Powered BD-4 - http://www.bob-white.com
> > First Flight:  11/23/2006 7:50AM - 3.8 Hours Total Time
> > Cables for your rotary installation - http://www.roblinphoto.com/shop/
> >
> > --
> > Homepage:  http://www.flyrotary.com/
> > Archive and UnSub:
> > http://mail.lancaironline.net:81/lists/flyrotary/List.html
> >
>
>  ------------------------------
> AOL now offers free email to everyone. Find out more about what's free
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> .
>

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I thought so..<br>
<br>
The idea is to keep the speed, but make the BD-4 more rough field
capable, shock absorbing without too much rebound would be the ideal
thing:<br>
Like the air-bumps on Baja-Racers....<br>
<br>
Thomas<br><br><div><span class="gmail_quote">On 3/6/07, <b class="gmail_sendername"><a href="mailto:wrjjrs@aol.com">wrjjrs@aol.com</a></b> &lt;<a href="mailto:wrjjrs@aol.com">wrjjrs@aol.com</a>&gt; wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div>
<div>Thomas, The biggest problem there is, &quot;Does not or barely
rebound&quot;. The different weights is also tough, but with carbon you
could design strong enough for a 4 seater but it would be a bit stiff
when unloaded. </div>


<div>Bill Jepson<span style=""></span></div><span class="q">


<div>&nbsp;</div>
&nbsp;<br>
-----Original Message-----<br>
From: <a href="mailto:rotary.thjakits@gmail.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">rotary.thjakits@gmail.com</a><br>
To: <a href="mailto:flyrotary@lancaironline.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">flyrotary@lancaironline.net</a><br>
Sent: Tue, 6 Mar 2007 12:18 PM<br>
Subject: [FlyRotary] Re: Engine choise for BD-4 (changed from &quot;Hard Landing &quot;)<br>
<br>




</span><div><span class="q">I think in one of the old newsletters there was talk about fibreglass landing gear...<br>
Anyone out there with the know how&nbsp; to &quot;tune&quot; the gear to specific properties?<br>
I like Lynn&#39;s idea of using something &quot;designed&quot; like the Stinson gear (need to look that up, any links...?).<br>
Already thought about&nbsp; &quot;Airbag&quot;-suspension, a la Hornet (Challenger-derivative...)<br>
<br></span><span class="q">
At the end the best designed gear does not need any adjusting..<br>
Who has the expertise to make/design a glass/carbon gear, that:<br>
<br>
Absorbs shock<br>
does it progressively<br>
Does not or barely rebound<br>
Can accommodate different weights (4 seater)<br>
<br>
I understand one can play with different fibers, orientation, different resins, etc.<br>
But where to start?? :))<br>
<br>
Thomas<br>
<br>
<br>
<br>


</span><div><span class="q"><span class="gmail_quote">On 3/6/07, <b class="gmail_sendername">Bob White</b> &lt;<a href="mailto:rlwhite@comcast.net" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">rlwhite@comcast.net
</a>&gt; wrote:</span> 
</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><span class="q">On Tue, 6 Mar 2007 11:24:35 EST<br>
<a href="mailto:Lehanover@aol.com" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">Lehanover@aol.com</a> wrote:<br>
<br>
&lt;snip&gt;<br>
&gt;<br>
&gt; I don&#39;t remember the Whitman geared BD-4. I was thinking about a Cessna&nbsp;&nbsp;main<br>
&gt; gear, but I found a complete assembly at Sun&amp;Fun and I could not pick&nbsp;&nbsp;it up. <br>
&gt; So, I forgot about it.<br>
&lt;snip&gt;<br>
&gt; Lynn E. Hanover<br></span>
&gt; &lt;BR&gt;&lt;BR&gt;&lt;BR&gt;**************************************&lt;BR&gt; AOL now offers free<span class="q"><br>
&gt; email to everyone.&nbsp;&nbsp;Find out more about what&#39;s free from AOL at <br></span><span class="q">
&gt; <a href="http://www.aol.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.aol.com</a>.<br>
&gt;<br>
I just tested the durability of the BD style gear made from 7075<br>
aluminum.&nbsp;&nbsp;After ripping them completely off the landing gear box, they<br>
are in perfect condition. <br>
<br>
Bob W.&nbsp;&nbsp;(Leaving to do more paperwork with the FAA.)<br>
<br>
--<br>
N93BD - Rotary Powered BD-4 - <a href="http://www.bob-white.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.bob-white.com</a><br>
First Flight:&nbsp;&nbsp;11/23/2006 7:50AM - 3.8 Hours Total Time <br>
Cables for your rotary installation - <a href="http://www.roblinphoto.com/shop/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.roblinphoto.com/shop/</a><br>
<br>
--<br>
Homepage:&nbsp;&nbsp;<a href="http://www.flyrotary.com/" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.flyrotary.com/</a><br>
Archive and UnSub:&nbsp;&nbsp; <a href="http://mail.lancaironline.net:81/lists/flyrotary/List.html" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://mail.lancaironline.net:81/lists/flyrotary/List.html</a>
<br>
</span></blockquote></div>
<br>
</div><span class="q">

<div>
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