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Jeffrey Joe Hinton replied to the topic "The last of the KestreL kits -" – 6 years, 7 months ago
JW, sent you a PM. Willing to work out a suitable alternative if secret message doesn’t work for you. Thanks.
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Tim Thomas replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
8) I was just eyeballing the latest Fibre Glast offerings. Under sandwich core – Nomex Honeycomb .210 cut – 3/16overexpanded cell. 1.8 lb./cu.ft. 40 X48 119.99full sheet 40 X100 199.99. Also end grain balsa, bonded to a scrim fabric in… Read more»
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djsroc replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
I wont be at the dinner but if anyone could bring a sample to the next launch that would be great.I could always pick it up from anyone too.
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Warren B. Musselman replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
I’ve flown 1/8″ honeycomb fins on my L2 cert bird – standard trapezoidal planform ala Nike Smoke. Has something like 10 flights K and L on it and has fallen from 2K with an incomplete main deployment and bounced. No… Read more»
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Ed Dawson replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
would 1/8″ take the abuse of a full L motor? Well that all depends on the size ans shape of the fin, and the speed of the bird. If you have a long root and a small span (like the… Read more»
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djsroc replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
Since I have not seen this stuff, would 1/8″ take the abuse of a full L motor? The actual fins would use the 3/8″ but I will use the 1/8″ for other parts.Im thinkin Ill go with my other upscale… Read more»
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Warren B. Musselman replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
One thing about Nomex honeycomb panel. Weight depends a LOT on how it was made. If epoxy from the layup process fills some or all of the cells, it weighs a lot more than if it was properly laid up…. Read more»
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Ed Dawson replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
I finally went out to the shop and weighed the honeycomb I have in the fin material stash. I have a 1′ x 3′ piece of both 3/8″ and 1/2″.3/8″ weighs 703g.1/2″ weighs 475g.Yes, that is correct – the 1/2″… Read more»
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Warren B. Musselman replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
Balsa end-grain is almost as light and considerably stronger from my understanding.Another option to consider is foam-core fins. I built a fin can for someone a couple years ago made up of a skeleton-frame of foam-core board (cheap) with 2-part… Read more»
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Doug Gerrard replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
I found a 1/4″ piece 24″ X 48″ online for $160. A little more for balsa core. I didn’t see 1/2″ thick but that is where I bought mine from.Doug
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edward replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
A 4′ x 6′ sheet of what I have would probably be on the extreme high end of the price range :)Edward
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djsroc replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
Im thinkin of a sheet around 4’x6′ should do.Right now im just throwin around ideas so at this point I dont need any just yet but thanks for lookin. When I get the actual plans scaled up Ill know more… Read more»
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Ed Dawson replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
I have some of the 1/2″ and some 3/8″ in the shop. These are the ones that Giant Leap sells.I can go out and weigh them to be exact, but don’t worry too much about the weights. The 1/2″ is… Read more»
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edward replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
How large of pieces do you need. I have some different assorted thickness of carbon fiber aluminum honeycomb.Edward
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djsroc replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
Unfortunately to make the upscale I will have to go around 1/2″ to keep everything in scale. I may just use the thinner stuff and possibly loose points to keep this as light as possible.Nothing is set in stone yet,… Read more»
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Warren B. Musselman replied to the topic "nomex honeycomb question" – 6 years, 7 months ago
I’ve worked with the stuff and plan on an M-powered bird that will fly with 1/8″ Nomex honeycomb fin cores. Unfortunately I don’t have a weight for you. I plan on putting beveled G10 strips for leading and trailing edges… Read more»
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replied to the topic 6 years, 7 months ago
I still think about that flight. I would love to know how high it went, the thrust curve of the motor and how my constructtion held up.Is that to much to ask? Hopefully some day it will turn up.Tony
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replied to the topic 6 years, 7 months ago
Tony,8O , very impressive sir. I mean holy #$%@ WOW!
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John A. Wilke replied to the topic "Taking the dive" – 6 years, 7 months ago
Just to add clarity to Tony’s post – that long section in the upper photo above is the MOTOR.The “up” part of that boost was very cool. Unfortunately, at about T+30 someone on the flight line fired up a transmitter… Read more»
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replied to the topic 6 years, 7 months ago
I agree with both Warren and Adrian. Carbon fiber is lighter, thinner, stronger then fiber glass. Fiber glass can handle some extreme flights. I did a 5″ min dia P motor rocket. It was a fiber glass hand laid. It… Read more»
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