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- Aug 25, 2019
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That's what Tommy Chong said...It was a great day at the Bong.
That's what Tommy Chong said...It was a great day at the Bong.
Tried the hot water bath for the epoxy bottle.
Was able to de-solidify the resin but not able to return it to its former fully liquid/syrup state. At best it resembled silly putty.
Oh, well. Lesson learned. My replacement epoxy shipment is scheduled to arrive on Tuesday.
Love my US Composites 635 and 150 epoxy resins, a gallon typically takes me 2-3 years to use, stored year around in an insulted garage so it sees about a 40-50°F temp swing.A little strange. The El-Cheapo brand (US Composites) laminating epoxy resin I bought at least 5 years ago is still just fine. It was stored at room temperature, which may make a difference. The slow curative is unchanged, and the resin itself works well with OLD (10-15 years) Fiberglast curative, at the same ratio as the can says.
Best -- Terry
Published yesterdays adventure:
This rocket is rolled out of cardboard from cases of Michelob Ultra. 101mm in diameter, 127cm long, nearly 800 grams. This is an impressive mid power flyer on these Aerotech F67-4 and G79-4 motors. Join the fun!
#ModelRocketry #MichelobUltra #Aerotech
Flew my first rocket of 2020. Great conditions. Sustainer igniter lost continuity during boost.
I’m thinking my second flight of 2020 will look a lot like the first. But higher.
View attachment 406817
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Nice.Did you fly solo at Bong?Never mind.
This covers most of it:Awesome! Any chance you documented the process? I maaaaay be able to do something similar out of Miller Lite cases. If I start saving them now, I could have a flyer by, say, early March?
Flew my first rocket of 2020. Great conditions. Sustainer igniter lost continuity during boost.
View attachment 406817
View attachment 406818
The Velocity curves seem to match really well, considering the thrust difference.
What was the thrust difference between the sim and actual? Do you know why the Proton velocity data has a discontinuity?
Are you now using the compression foam for your core and skinning with 2 layers per side of carbon?Both sides will be directly reinforced first with the spread tow at 0, +/- 45 and 90 degrees. The spread tow I’m using has a binder which makes it very easy to cut exact shapes out of. Once cured and bonded on to the fin canister the t2t will be done in the same fashion. There will be ablative covering the exposed carbon as well as the leading, tip and trailing edge
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Mick, should be in the Yard Sale/Wanted forum.For Sale: Madcow 5.5" Fiberglass Nike-Tomahawk
$550.00 Includes shipping in the CONUS only.
No compression foam involved! The cores are G10 fiberglass and they will be reinforced with carbon on each side. The purpose is to prevent de-lamination of the hand laminations during the high velocity flight.Are you now using the compression foam for your core and skinning with 2 layers per side of carbon?
Okay, ThanksMick, should be in the Yard Sale/Wanted forum.
Wonder why the Cobra 1500 never took off and the Mean Machine did.Finished the paint on my 2 Cobra 1500’s
Yes, but wind so light that the sustainer landed between the pads and launch table negated the benefit.
Got some li'l fellers in.
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