Interesting Rick ( I mean Fingers)...The more I learn about indoor, the more I realize I just don't know much about indoor. That is part of the excitement for me, the learning. When it comes to building, the best thing I have learned is to keep good records of weights of parts. It may not help the current overweight one being recorded, but it sure helps give you some knowledge for the next one.
Flying is a different story. I am still amazed at how much of it is intuitive. Sometimes you just don't know whats going on, but all of the sudden you are convinced it needs a little more negative in the tail. You have no idea why you think that, but you make the change and sure enough, things improve. I love this stuff!
Dennis
--- In Indoor_Construction_at_yahoogroups.com, themaxout@... wrote:
>
> OK...you haven't seen my fingers either...I might as well use clubs to
> build with. If I drop a pin I have to get a magnet. The first real EZB I
> built was the Hobby Shopper under Tim's pushing. He gave me everything I
> needed...the directions...and I built jigs, forms, tools and everything. I did
> all the right things with the bending gages, you name it. I made a feeble
> attempt to document it in the Max-Out. To me building an indoor ship was
> building a model that flew inside and not outside.
>
> The first time I flew it I thought I did rather
> well..considering....considering I probably doubled it's weight with glue from fixing by the time it
> had made 10 flights. Watching Kang fly in Colo Springs made me a true
> believer that there are some people who can do this...I believe I can again
> too..given another bunch of free time! I did figure out that after being an
> outdoor builder for 55 some odd years...indoor is a special animal if you do
> it right. You have to re-think things. But it will improve your skills.
>
> The steps to start with a P-24..then to a penny...then A6 and then EZB is
> logical. I built the EZB first, then the penny and then the A6. I'm not
> sure that was logical, but I did learn a lot. My next step is to not try to
> prepare 2 weeks before a contest! And, I have had some great folks to
> watch and ask questions of...Don D, Bill Leppard, Kang, John Kagan, Bill
> Gowen...it's good to see what the state of the art can do. Doing it? I defer
> to the club fingers.
>
> It's magic......and pretty magic it is!
>
> Rick Pangell
> Editor of "The Max-Out" Newsletter of
> The Magnificent Mountain Men FF Club of Colorado
>
>
> In a message dated 10/3/2011 1:19:35 P.M. Mountain Daylight Time,
> brucemccrory_at_... writes:
>
>
>
>
> Rick P. wrote: "And, how do you guys build that light? I am impressed."
>
>
>
>
>
> Rick,
> Didn't you process some of Tim Goldstein's Tru-Weight balsa that he cut,
> 6, 7 years ago? The rage was to find balsa that would bend and snap back to
> original shape, and hold hammers without bending. Once you have this
> outrageously strong wood with an MOE to match, you can start building really
> light. (Yes, some indoorists will disagree with this pre-requisite.)
>
> I built an under 260mg A-ROG, using reject cuts from under 500mg EZB
> building efforts. Building light required a mind set, on my part, to do the
> task. The target weight was 300mg. Plus same for motor. It was not to be braced.
>
> My weighing scale was limited to 0.01g, so I weighed mulitple copies of
> each part and averaged. Never new the total weight until it was finished.
> Even then, there was a substantial +/-, due to humidity and scale accuracy. I
> tested parts for about a dozen models, to get the stiffest and strongest
> (and lighest) parts. Once covered with y2k2, I could not breathe directly
> onto those parts; and many of the bones, prior to covering.
>
> There were two "go-by" models I used for material sizing guides. Both were
> braced models: Jim Richmond's difficult to trim model, and Louka's, which
> I copeid. However, I sized parts based on final support of 600mg. I stabbed
> built wing frames into the weighing scale to make sure each half resisted
> 0.3g with reasonable deflection. One of the last things I did was crack the
> wing spars for a 3rd set of polyhedral. It strengthened the spars and
> reduced fatigue bending during flight. The motor tube collapsed at more than
> .1in-oz during the first competitive attempt, so that was a limit. The
> highest time was 20+ minutes at Kibbie.
>
> It survived about a dozen launches, until stress fractures crippled
> flights.
>
>
>
>
> From: "themaxout_at_..." <themaxout@...>
>
>
>
>
> MARKETPLACE
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Received on Mon Oct 03 2011 - 15:13:44 CEST