Search found 476 matches

by Viking
Sat Oct 20, 2018 3:57 pm
Forum: I could use that
Topic: Right angle push button switch relay?
Replies: 5
Views: 13222

Re: Right angle push button switch relay?

You could also glue some plastic tube to a bracket and use some flexible rod as a pushrod.
by Viking
Wed Oct 17, 2018 1:59 pm
Forum: Rocketry Control Room
Topic: Restoration of an original Apollo Guidance Computer
Replies: 3
Views: 397

Re: Restoration of an original Apollo Guidance Computer

Very cool.

Fran has also been working on re-creating a DSKY display module.
She had a video where she was granted access to a genuine unit and was allowed to do a tear-down on it, but it looks like that vid got de-listed for some reason. (or I'm just blind)
by Viking
Thu Oct 04, 2018 12:21 pm
Forum: ROCKETS Magazine
Topic: ROCKETS Magazine (Volume 10 Issue 6)
Replies: 8
Views: 14412

Re: ROCKETS Magazine (Volume 10 Issue 6)

Aquaman33 wrote:...
I hope they find some way to preserve an archive of the electronic editions online somewhere.


Already sorted, every issue is available:
https://rocketsmagazine.com/backissuedownloads/
by Viking
Fri Sep 21, 2018 1:38 pm
Forum: How's the Weather..?
Topic: Not really a rocket
Replies: 1
Views: 695

Re: Not really a rocket

Haha, so cool huh?
When I saw this I immediately thought how cool it would be with an RC turbine!
by Viking
Fri Sep 21, 2018 12:39 pm
Forum: How to's
Topic: Questions: Balsa/Carbon Sandwiches
Replies: 10
Views: 15783

Re: Questions: Balsa/Carbon Sandwiches

Yep, epoxy cures faster with heat, curing epoxy creates heat(exothermic reaction) it's vicious circle. I guess the brush bristles are a bit of an insulator trapping heat inside, I wonder how close the epoxy in the brush is to thermal runaway? When I was a grom (teen surfer) I used to surf with a guy...
by Viking
Tue Sep 18, 2018 2:01 pm
Forum: How to's
Topic: Questions: Balsa/Carbon Sandwiches
Replies: 10
Views: 15783

Re: Questions: Balsa/Carbon Sandwiches

Good Stuff! ....it was a bit of a scramble because I was afraid the epoxy would go off, but it worked out okay. Don't stress too much with 206. I mix for a min or so and then wet out my cloth as quick as I can just so it's not sitting in the pot cooking itself. I use a foam roller (paint trimming ty...
by Viking
Mon Sep 17, 2018 12:38 pm
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 99
Views: 10073

Re: Purple Parrot - MD 38mm

Great video Matt. I'm still jealous you can get DashWare to work.
by Viking
Tue Sep 04, 2018 4:50 am
Forum: Rocketry Control Room
Topic: UP CLOSE Delta IV Heavy Launch Pad Tour
Replies: 2
Views: 507

Re: UP CLOSE Delta IV Heavy Launch Pad Tour

.... and after the walk to the pad. (Yeah I posted before I had finished watching it)
This is one of the most interesting things I have seen in a long time.
Frekin' awesome.
by Viking
Tue Sep 04, 2018 4:17 am
Forum: Rocketry Control Room
Topic: UP CLOSE Delta IV Heavy Launch Pad Tour
Replies: 2
Views: 507

UP CLOSE Delta IV Heavy Launch Pad Tour

Very cool, and very very interesting discussion on the walk to the pad.

https://youtube.com/watch?v=x-vXJL8jXBk

by Viking
Wed Aug 29, 2018 3:22 pm
Forum: How to's
Topic: Questions: Balsa/Carbon Sandwiches
Replies: 10
Views: 15783

Re: Questions: Balsa/Carbon Sandwiches

...I also saw a vid with a guy making his own using thin 3M double-sided tape, but can't find that vid now.... Found the vid, though it's not exactly as I remember. He's making edge tape with e-glass and cutting it so it's biaxial. I guess it conforms to compound curves better this way, or it's str...
by Viking
Wed Aug 29, 2018 12:25 pm
Forum: How to's
Topic: Questions: Balsa/Carbon Sandwiches
Replies: 10
Views: 15783

Re: Questions: Balsa/Carbon Sandwiches

I have bagged some composite fins, using e-glass instead of Carbon though. It is better to wet-out your cloth rather than the balsa. You will get lighter fins this way. I'm not sure If bonding the two faces together is really needed but if you are worried about de-lam, epoxy alone will help a little...
by Viking
Sun Aug 26, 2018 12:16 pm
Forum: Mid/High Powered Rocketry
Topic: Don't Debate This, Too
Replies: 69
Views: 5460

Re: Don't Debate This, Too

Oldboy wrote:Towels ....

Wise words...

da5.jpg
da5.jpg (76.89 KiB) Viewed 694 times


Even the ISS knows how mind-bogglingly important a towel is...

DMhZxJG.jpg
DMhZxJG.jpg (108.05 KiB) Viewed 694 times

1368582_1.jpg
1368582_1.jpg (4.81 KiB) Viewed 694 times
by Viking
Fri Aug 24, 2018 3:41 pm
Forum: News & Events
Topic: Curt von Delius hits 200k' with his Phoenix 4 2 stage stack
Replies: 31
Views: 5311

Re: Curt von Delius hits 200k' with his Phoenix 4 2 stage stack

From what I've been able to find, COCOM "ceased to function" in 1994 and was superseded by the Wassenaar Arrangement. GNSS seems to be covered by the 'DUAL-USE LIST - CATEGORY 7 – NAVIGATION AND AVIONICS' however I can't find anything specific. ITAR apparently had a rule for GNSS : " ...
by Viking
Thu Aug 23, 2018 1:28 pm
Forum: News & Events
Topic: Curt von Delius hits 200k' with his Phoenix 4 2 stage stack
Replies: 31
Views: 5311

Re: Curt von Delius hits 200k' with his Phoenix 4 2 stage stack

...Seems to me we have a growing need to get altitude measurements above 50k. I did see an article about Copenhagen Oribital that they were using unlocked GPS. This could still be done with locked GPS. Using timing GPS modules to synchronize a radio transmitter on board the rocket to receivers on t...
by Viking
Tue Aug 21, 2018 4:06 pm
Forum: News & Events
Topic: Curt von Delius hits 200k' with his Phoenix 4 2 stage stack
Replies: 31
Views: 5311

Re: Curt von Delius hits 200k' with his Phoenix 4 2 stage stack

Do you think that the 50,000m limit is software based (like COCOM limits)? My expectation is that is the case. TBH I don't know whether it's a COCOM, or ITAR or Wassenaar regulation.. or if it's a limitation in ublox's navagation engine. Dunno. Here's the 'Dynamic Platform' options for the Max7. No...

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