[NSRCA-discussion] Black Magic website updated

[Anthony Romano]

sounds like a great K factor articles.

Anthony


>From: "Mike Hester" <kerlock at comcast.net>
>Reply-To: NSRCA Mailing List <nsrca-discussion at lists.nsrca.org>
>To: "NSRCA Mailing List" <nsrca-discussion at lists.nsrca.org>
>Subject: Re: [NSRCA-discussion] Black Magic website updated
>Date: Wed, 7 Jun 2006 17:44:29 -0400
>
>Well, on a plane like this, it all starts with the wood selection and the 
>lay up of the composite parts. I use all hand picked balsa, and weigh every 
>piece. I get a lot more than I need then use the lighter stuff. These I'm 
>flying are what I would consider "medium" grade, or about 14-15 grams per 
>sheet for the 1/16x4x36 sheeting. The composite parts, well...let's say I 
>have gone through a few gallons of epoxy 1/2 oz at a time and I'm still 
>playing with it. But they are pretty good. Not European kind of good, but 
>better than average, and light.
>
>I'm not sure there's anything strategic about it, except experience. lots 
>of trial and error. I did my best to pass along what I know in the plans 
>and in the thread on RCU. In time I'll have a lot of stuff on my web site 
>too, so hopefully that'll help everyone, not just Black Magic builders. I 
>certainly don't have the market cornered on building light, but I seem to 
>have reached a point where I know enough tricks to share. Especially with 
>this type of construction. Somewhere Terry Brox has some GOOD info on 
>sheeting foam wings, and although I do it slightly different, therein lies 
>a VERY good guide on how to sheet everything, not just wings. And this 
>plane is about 65% sheeted foam.
>
>Also a good quality epoxy helps a lot. MGS is my first choice, but West 
>systems is fine and can be bought in quart sizes. I HATE that hobby shop 
>goo for anything except some structural areas. It's just too thick and 
>heavy. There's no real strength in extra glue.
>
>Also always take into account what type of power you'll be using. if you're 
>using a banging 4 stroke, it's a good idea to beef some thing up slightly. 
>1/4" balsa triangle stock in corners, things like that. With an electric, 
>there's practically no vibration, so you can really back off on a lot of 
>things. Just make sure you don't take out too much in the wrong places =)
>
>Anyway, without having to make this a 3 part post, it's not that hard, but 
>experience and technique (BOTH of which are easily learned) always help.
>
>-Mike
>   ----- Original Message -----
>   From: White, Chris
>   To: NSRCA Mailing List
>   Sent: Wednesday, June 07, 2006 4:55 PM
>   Subject: Re: [NSRCA-discussion] Black Magic website updated
>
>
>   Mike that is very impressive ... Do you gain most of your weight 
>advantage by careful balsa selection or use of strategic composite 
>interface?  Maybe that is an inappropriate question since there's no one 
>place to "Save" weight, but I'd still like to hear your thoughts.  You 
>obviously "Know" how to build light.
>
>   Thanks, Chris
>
>
>
>
>------------------------------------------------------------------------------
>
>   From: nsrca-discussion-bounces at lists.nsrca.org 
>[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Mike Hester
>   Sent: Wednesday, June 07, 2006 3:27 PM
>   To: NSRCA Mailing List
>   Subject: Re: [NSRCA-discussion] Black Magic website updated
>
>
>
>   I'll let you know LOL First YS versions are just nearing completion.
>
>
>
>   But mine are both right at 9lbs 8 ozs with the OS140. My guess would be 
>9lbs 12-14 ozs. or, "about 10 lbs". Less if you're picky, more if you're 
>not.
>
>
>
>   -Mike
>
>
>
>     ----- Original Message -----
>
>     From: White, Chris
>
>     To: NSRCA Mailing List
>
>     Sent: Wednesday, June 07, 2006 4:05 PM
>
>     Subject: Re: [NSRCA-discussion] Black Magic website updated
>
>
>
>     Hi Mike,
>
>     What are you seeing as a typical weight for the Black Magic using a YS 
>setup?
>
>     Thanks, Chris
>
>
>
>
>----------------------------------------------------------------------------
>
>     From: nsrca-discussion-bounces at lists.nsrca.org 
>[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Mike Hester
>     Sent: Wednesday, June 07, 2006 1:37 PM
>     To: NSRCA Mailing List
>     Subject: Re: [NSRCA-discussion] Black Magic website updated
>
>
>
>     Yes, Emory Schroeter has.
>
>
>
>     He used a Plett 30-10 and Tanic packs (3 lb packs). Final weight was 
>10 lbs 10 ozs. Would have been very close to 10 lbs with a Hacker/TP setup. 
>I'll say it flew fantastic, ridiculous even, I'd let anyone else who saw it 
>comment further.
>
>
>
>     It met an untimely demise in the Ocala contest. RIP. But...there is 
>another.....
>
>
>
>     -Mike
>
>
>
>       ----- Original Message -----
>
>       From: mike mueller
>
>       To: NSRCA Mailing List
>
>       Sent: Wednesday, June 07, 2006 2:23 PM
>
>       Subject: Re: [NSRCA-discussion] Black Magic website updated
>
>
>
>       34" is just right. I think the Temptation is around 29" and the 
>Smaragd is close to 33". That's how I guage how wide the fuse is. Has 
>anyone done the plane Electric yet? Thanks, Mike
>
>       Mike Hester <kerlock at comcast.net> wrote:
>
>       6 3/4" wide, Almost 13" tall at the canopy, and if you wrap a tape 
>measure around the canopy, the circumference is 34". It's not so large as 
>to be a kite, but it rolls, point rolls and KEs EXTREMELY well. But due to 
>the shape, it also penetrates the wind very well. Everyone who's flown it 
>seems to like it a lot. I know I do =)
>
>
>
>       -Mike
>
>
>


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