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<DIV><FONT size=2>Weigh them with full fuel ready for takeoff then its
even.</FONT></DIV>
<BLOCKQUOTE
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tretas513@yahoo.com href="mailto:tretas513@yahoo.com">Tommy
Scarmardo</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, June 21, 2007 12:11
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Fwd:
Electric Weight Proposal Logic andRationale</DIV>
<DIV><BR></DIV>I do not agree. If the weight limit is increased it should be
increased for everyone.<BR><BR><B><I>Ron Van Putte <<A
href="mailto:vanputte@cox.net">vanputte@cox.net</A>></I></B> wrote:
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">I
got the following from John Fuqua. He is going to submit a proposal to
increase the weight limit for electric-powered airplanes to 11.5 lbs.
I suggested to him that he "float" his rationale by the NSRCA Discussion
List, to get some feedback. Here is his response.
<DIV><BR class=khtml-block-placeholder></DIV>
<DIV>Ron Van Putte<BR>
<DIV><BR>
<DIV>Begin forwarded message:</DIV><BR class=Apple-interchange-newline>
<BLOCKQUOTE type="cite">
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" face=Helvetica color=#000000
size=3><B>Date: </B></FONT><FONT style="FONT: 12px Helvetica"
face=Helvetica size=3>June 21, 2007 10:40:36 AM CDT</FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" face=Helvetica color=#000000
size=3><B>To: </B></FONT><FONT style="FONT: 12px Helvetica" face=Helvetica
size=3>"Ron Van Putte" <<A
href="mailto:vanputte@cox.net">vanputte@cox.net</A>></FONT></DIV>
<DIV style="MARGIN: 0px"><FONT
style="FONT: 12px Helvetica; COLOR: #000000" face=Helvetica color=#000000
size=3><B>Subject: </B></FONT><FONT style="FONT: 12px Helvetica"
face=Helvetica size=3><B>Electric Weight Proposal Logic and
Rationale</B></FONT></DIV>
<DIV style="MIN-HEIGHT: 14px; MARGIN: 0px"><BR></DIV>
<DIV><FONT face=Arial size=2>Now that I am flying electrics I have come to
realize the penalty that electric planes have when being built that gas
planes to not have. That building penalty is significant under the
current rules. Electrics must be built lighter, to include paranoid
attention to everything used - wood, paint, fittings, etc., - all to make
weight. Much more of a concern than gas planes. Also I
remember many instances at the NATs when we were weighing airplanes, when
the contestant was doing all he could do to meet weight with a gas plane
to include cleaning the fuel residue inside and out. A lot of
gas planes were weighing in at 10lb 11oz, 10lb 11.9 oz, even one that was
only a few grams under 5 kilos. Then they get to add a minimum
of 16 to 20 ozs of weight by fueling up (and there is no limit to fuel
capacity). Takeoff weights are 12 lbs or more. This
situation seems bizarre and illogical when you put some thought into
it. Electrics have a finite weight and gas planes are open ended at
Takeoff. Even though the 2005 NSRCA survey did not support an
electric weight increase it occurred to me that the survey did not offer
any logic or rationale as to why some increase would be justified or
not. I have attempted below to come up with a reasonable compromise
on electric weight allowance. I believe the rationale supports an
increase but it would be nice to have NSRCA membership look at it to find
the fatal flaw in the rationale before it gets submitted. The two
paras below are taken from the proposed change. Lets put it
out and see what the discussion list comes up with.</FONT></DIV>
<DIV><FONT face=Arial size=2>John</FONT> </DIV>
<DIV><FONT face=Arial size=2>Change paragraph 4.3 Weight and Size page
RCA-2 to read: No model may weigh more than 5 kilograms (11 pounds)
gross, but excluding fuel, ready for takeoff. Electric models are
weighed with batteries<B><I> and are allowed an additional 8 ounces for a
total of 11.5 pounds ready for takeoff.</I></B><I></I> No model may
have a wingspan or total length longer than two (2) meters (78.74
inches).</FONT></DIV><BR>
<DIV><B><FONT face=Arial size=2>Logic behind proposed change, including
alleged shortcomings of the present rules. State intent for future
reference.</FONT></B> </DIV>
<DIV><FONT face=Arial size=2>Today’s 2 meter RC Aerobatics fuel powered
aircraft typically use fuel tanks with a 20 fluid ounce capacity. A
20 fluid ounce Crank Tank containing 25% Cool Power Pro Pattern fuel was
tested. The fuel weighed 17.3 ounces. Allowing for variation
in tank sizes and fuel type a conservative weight of 16 ounces of fuel on
average seems appropriate. This means that an allowable takeoff
weight for fuel powered aircraft is at least 12 pounds.
Assuming that all fuel is consumed during the flight, the average weight
for the aircraft is 11.5 pounds. By restricting electric powered
aircraft to the takeoff weight of unfueled aircraft an unfair weight
penalty is being arbitrarily imposed against the electric model. By
allowing electric aircraft an AVERAGE flying weight of the fuel powered
aircraft, flying weight equity is
restored.</FONT></DIV></BLOCKQUOTE></DIV><BR></DIV>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE><BR>
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