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Subject: Re: 360 on blocks
From: Jeff Peterson <jeffreyb.peterson@gmail.com>
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 From: "Bill Bradburry" <bbradburry@bellsouth.net> Sender: <
marv@lancaironline.net> Subject: RE: [LML] 360 on blocks Date: Fri, 01 Nov
2013 07:24:30 -0400 To: lml@lancaironline.net  [image: Message
Header]<http://mail.lancaironline.net:81/lists/lml/Message/67463-H.txt>

[image: Undecoded
Message]<http://mail.lancaironline.net:81/lists/lml/Message/67463-P.txt>

Jeff,

What kind of Styrofoam and where did you get it?

Bill


I used a couple 4'x8' sheets of 2 inch thick pink housing insulation foam
from the Home Depot aviation supply store.  I used a metal straightedge and
scored halfway thru with a razor knife and then snapped it. Quick, easy and
not too expensive.

At some point in the past I did an experiment in which I put a block of
this foam on a scale and pushed down on it with the end of a 1/2 inch rod.
I remember the rod begining to penetrate at about 50-100 PSI.  The load
pressure supporting the plane is well below this, perhaps 5 PSI max.

I thought about making a concave top piece of foam, contoured to fit the
wing. But, I tried it first without that, and found it worked quite well to
just use a flat top piece.
-- 
Jeff Peterson

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<div dir=3D"ltr"><div><div><br>

<table class=3D"" border=3D"0" cellpadding=3D"0" cellspacing=3D"0" width=3D=
"100%"><tbody><tr><td><table class=3D"" cellspacing=3D"0" width=3D"100%"><t=
body><tr valign=3D"top">
<td width=3D"100%"><table class=3D"">

<tbody><tr><td class=3D"">From:</td>
	<td class=3D"">&quot;Bill Bradburry&quot; &lt;<a href=3D"mailto:bbradburry=
@bellsouth.net">bbradburry@bellsouth.net</a>&gt;</td></tr>

<tr><td class=3D"">Sender:</td>
	<td class=3D"">&lt;<a href=3D"mailto:marv@lancaironline.net">marv@lancairo=
nline.net</a>&gt;</td></tr>

<tr><td class=3D"">Subject:</td>
	<td class=3D"">RE: [LML] 360 on blocks</td></tr>

<tr><td class=3D"">Date:</td>
	<td class=3D"">Fri, 01 Nov 2013 07:24:30 -0400</td></tr>

<tr><td class=3D"">To:</td>
	<td class=3D""><a href=3D"mailto:lml@lancaironline.net">lml@lancaironline.=
net</a></td></tr>

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<td class=3D"" align=3D"center">
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<a href=3D"http://mail.lancaironline.net:81/lists/lml/Message/67463-P.txt" =
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<div class=3D"">

<p class=3D"MsoNormal"><font color=3D"navy" face=3D"Arial"><span style=3D"f=
ont-size:10pt;font-family:Arial;color:navy">Jeff,</span></font></p>

<p class=3D"MsoNormal"><font color=3D"navy" face=3D"Arial"><span style=3D"f=
ont-size:10pt;font-family:Arial;color:navy">What kind of Styrofoam and wher=
e did you
get it?</span></font></p>

<p class=3D"MsoNormal"><font color=3D"navy" face=3D"Arial"><span style=3D"f=
ont-size:10pt;font-family:Arial;color:navy">Bill </span></font></p>

<p class=3D"MsoNormal"><font color=3D"navy" face=3D"Arial"><span style=3D"f=
ont-size:10pt;font-family:Arial;color:navy"></span></font></p></div></td></=
tr></tbody></table><br></div>I used a couple 4&#39;x8&#39; sheets of 2 inch=
 thick pink housing insulation foam from the Home Depot aviation supply sto=
re.=A0 I used a metal straightedge and scored halfway thru with a razor kni=
fe and then snapped it. Quick, easy and not too expensive.<br>
<br></div><div>At some point in the past I did an experiment in which I put=
 a block of this foam on a scale and pushed down on it with the end of a 1/=
2 inch rod.=A0 I remember the rod begining to penetrate at about 50-100 PSI=
.=A0 The load pressure supporting the plane is well below this, perhaps 5 P=
SI max.<br>
<br></div><div>I thought about making a concave top piece of foam, contoure=
d to fit the wing. But, I tried it first without that, and found it worked =
quite well to just use a flat top piece.<br></div><div><div>-- <br>Jeff Pet=
erson<br>
<br></div></div></div>

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