Looks like a fine rocket @airforcetp1991!
What kind of terminal blocks are you using in this picture?
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I haven't seen this kind before and am intrigued.
nice
really dig seeing the progression in this thread.
lots of concepts being proven in the real world
Wishing you the best. No doubt you have put in the work. Time to light that candle!
The one with the stainless steel leading edge on the fins. Had lovely bluing after the flight.Have a look at some of the builds by cryoscum. He held the Tripoli O class commercial record for altitude and speed. O3400 to 66k' and M3.6 IIRC
Here are a couple of his threads on the Australia forum:
https://forum.ausrocketry.com/viewtopic.php?f=10&t=4666https://forum.ausrocketry.com/viewtopic.php?f=10&t=4253https://forum.ausrocketry.com/viewtopic.php?f=10&t=3659
There should be some useful information there .
Enjoy the build!
The one with the stainless steel leading edge on the fins. Had lovely bluing after the flight.
Have a look at some of the builds by cryoscum. He held the Tripoli O class commercial record for altitude and speed. O3400 to 66k' and M3.6 IIRC
Here are a couple of his threads on the Australia forum:
https://forum.ausrocketry.com/viewtopic.php?f=10&t=4666https://forum.ausrocketry.com/viewtopic.php?f=10&t=4253https://forum.ausrocketry.com/viewtopic.php?f=10&t=3659
There should be some useful information there .
Enjoy the build!
CFD analysis in preparation for the O-3400 record attempt next month. Hoping for Mach 3.5 on the way to 77-80k’. Time to send it!!
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Is this your L3 flight attempt?
Any imperfection will cause localised heating that may give a hot spot site for delamination to start. This could turn the carbon fiber into a hairy brush. At Mach 3.5 a small hairy brush is more draggy and hotter and causes a large hairy brush to appear. Rinse and repeat.Thanks, I decided to go with a gloss finish for the record attempt flight. Plus it is 2 more layers of epoxy clear coat protection.
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Any imperfection will cause localised heating that may give a hot spot site for delamination to start. This could turn the carbon fiber into a hairy brush. At Mach 3.5 a small hairy brush is more draggy and hotter and causes a large hairy brush to appear. Rinse and repeat.
Your fillets are not completely smooth. Smooth out every imperfection you can before the launch. You can't do it after you push the button.
Good luck. This is a bold project. FAR is probably the right place to launch it. I wish I had access to it. It could possibly be sanctioned as a Tripoli launch if you had the support of your TAPs. I'll leave that for others..... There is no reason another TAP couldn't take it on. Have you approached the Tripoli board? They have always been helpful. If the project was fully TAPped from the begining it can be taken up by another TAP. Of course finding that TAP is the challenge.
I have been known to use a titanium foil glued over the leading edges of fins. That might stop the airstream trying to peel your plate apart.
Purchased on the interweb from somewhere, possibly China. It was only a small quantity of foil and not very thick (can't remember exactly) so it was relativley inexpensive. It was preformed to shape and glued on with JB weld.That is a very interesting idea. Do you get it from McMaster?
Purchased on the interweb from somewhere, possibly China. It was only a small quantity of foil and not very thick (can't remember exactly) so it was relativley inexpensive. It was preformed to shape and glued on with JB weld.
I have been known to use a titanium foil glued over the leading edges of fins. That might stop the airstream trying to peel your plate apart.
Titanium is not allowed by the safety code as "structural".
Aluminium and copper alloys are good.
You should discuss with your TAPs before using.
As a laminated foil over the leading edge it would not likely fit in any reasonable definition of "structural" as it is there only to keep the high dynamic pressure of the edges of the plate and not provide structural strength. I guess you would discuss it with your TAPs or RSO up-front to make sure using it would be legal.Titanium is not allowed by the safety code as "structural".
TRA L3 or not, good luck with the flight!No, it is not. I was not allowed to execute this as a Cert flight so it will be flown at FAR.
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