Search found 2282 matches

by OverTheTop
Sat May 27, 2017 9:47 pm
Forum: How to's
Topic: Fin Thickness
Replies: 9
Views: 173

Re: Fin Thickness

Orange Revolution went to Mach 1.8 with surprisingly little damage to the paint. The worst damage was a scrape from the rail on the way up. Not even any Mach rash on the automotive two-pack :( It's not too difficult to go Mach+. Just build well and relax. M2+ is a different kettle of kipper... BTW, ...
by OverTheTop
Fri May 26, 2017 6:23 pm
Forum: Higher, Faster, Further
Topic: Fin Flutter Frequency
Replies: 2
Views: 31

Re: Fin Flutter Frequency

Here is something if you have the patience to research how to drive the package.

http://www.aerorocket.com/finsim.html

Very nice package, but if you drive it badly, remember the saying "Garbage in, garbage out." Refer to my signature below for further guidance :)
by OverTheTop
Fri May 26, 2017 8:01 am
Forum: News & Events
Topic: Rocket Lab prepares for Electron test launch
Replies: 6
Views: 121

Re: Rocket Lab prepares for Electron test launch

Great effort from Rocket Lab!


Will be interesting to see what they learned from the launch and how many goals were achieved.

Keep up the good work :)
by OverTheTop
Wed May 24, 2017 7:28 pm
Forum: Low Powered Rocketry
Topic: SpaceX Falcon 9 and Fairing Flying Model Rocket Kit
Replies: 2
Views: 51

SpaceX Falcon 9 and Fairing Flying Model Rocket Kit

SpaceX Falcon 9 and Fairing Flying Model Rocket Kit Got a mate of mine to bring back some stuff from the SpaceX shop when he was visiting the USA recently. As part of the batch I got two of the Falcon 9 plus Fairing rocket kits. Cost was $29USD each: kit.jpg Assembly was simple, and probably a bit ...
by OverTheTop
Wed May 24, 2017 3:11 pm
Forum: I could use that
Topic: Screw Switches
Replies: 11
Views: 164

Re: Screw Switches

Postage is free for E14 if you spend over about $50 IIRC.
by OverTheTop
Wed May 24, 2017 11:22 am
Forum: I could use that
Topic: Screw Switches
Replies: 11
Views: 164

Re: Screw Switches

D2HW-C212MR.jpg https://www.digikey.com/products/en?keywords=SW727-ND There are a couple of different variants, depending on whether you want the wires out the side or the bottom. Make sure you get one that has access to NC (normally closed) contacts for the pull-pin use. Some of the two-wire varia...
by OverTheTop
Mon May 22, 2017 2:38 pm
Forum: How's the Weather..?
Topic: Happy birthday "Jase"
Replies: 8
Views: 85

Re: Happy birthday "Jase"

Happy birthday Jase :)

I wish I was 44 again. Actually make that 34...
by OverTheTop
Sat May 20, 2017 12:05 pm
Forum: I could use that
Topic: Screw Switches
Replies: 11
Views: 164

Re: Screw Switches

I buy Omron micro-miniature microswitches with arms (and wire pigtails) from Digikey, then build some structure around them. I get the sealed ones for improved reliability. Something like this: AltsCompleted.JPG sledtop.JPG Details on the entire build here if you are interested: https://forum.ausroc...
by OverTheTop
Fri May 19, 2017 8:55 pm
Forum: I could use that
Topic: Screw Switches
Replies: 11
Views: 164

Re: Screw Switches

I've gone to a pull pin setup now with micro switches, really minimizes the complexity and stress at the pad.


Tried a few things, and the pull-pins are my preferred method. Just so simple and easy to not forget.
by OverTheTop
Fri May 19, 2017 11:11 am
Forum: Rocketry Control Room
Topic: Another interesting find...
Replies: 8
Views: 135

Re: Another interesting find...

What a great find :D
by OverTheTop
Wed May 17, 2017 8:22 pm
Forum: Electronics
Topic: Hardware Choices?
Replies: 38
Views: 681

Re: Hardware Choices?

So does it use a minimum of 20 hopping frequencies? The EggFinder is not FHSS. If it were it would fit under item 56 in Schedule 1 of the LIPD, assuming it used more that 20 frequencies. As stated, it fits in item 58 of Schedule 1. Does not need to hop. Refer to my earlier post for results. There i...
by OverTheTop
Wed May 17, 2017 4:59 pm
Forum: Electronics
Topic: Hardware Choices?
Replies: 38
Views: 681

Re: Hardware Choices?

Some basic test gear is coming out at amazing prices these days. Specialist items now are trending towards commodities. I'll stick with the CXA. Not quite DC to daylight but 9kHz-13.6GHz is good enough, especially considering it is well optioned (I made sure of that :wink: ). Ours is used for intern...
by OverTheTop
Wed May 17, 2017 9:47 am
Forum: Electronics
Topic: Hardware Choices?
Replies: 38
Views: 681

Re: Hardware Choices?

IMO every serious HPR rocketeer should have at least one of these units.


+1. I have seven of them :shock:
by OverTheTop
Tue May 16, 2017 8:45 pm
Forum: News & Events
Topic: Rocket Lab prepares for Electron test launch
Replies: 6
Views: 121

Re: Rocket Lab prepares for Electron test launch

Looking forward to seeing these guys have a great launch!

Electric turbopumps, 3D printed engines. Lots of good stuff happening :D
by OverTheTop
Tue May 16, 2017 8:35 pm
Forum: Electronics
Topic: Hardware Choices?
Replies: 38
Views: 681

Re: Hardware Choices?

Don't need to have other firmware to launch overseas. Just need to make sure you are on the correct frequency in the country you are using it in. I was doing some ground testing on the TRS whilst in Singapore recently. I made sure I complied with their requirements whilst I was on their territory. N...

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