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by air.command
Fri Jun 08, 2018 7:05 pm
Forum: Scratch Built
Topic: AUK XIII - L2 Build
Replies: 13
Views: 313

Re: AUK XIII - L2 Build

That's great! Very well done 8) Congratulations on your L2!
by air.command
Wed May 30, 2018 11:30 pm
Forum: Mid/High Powered Rocketry
Topic: Don't Debate This, Too
Replies: 32
Views: 874

Re: Don't Debate This, Too

I'm all ears! Do you have a reference for the 55-degree number? I heard something similar before but could never find a source. I would also be very interested to understand how you are estimating your case strength and how this is stacking up against test results. One of my big questions right now...
by air.command
Mon May 28, 2018 3:38 pm
Forum: Mid/High Powered Rocketry
Topic: Don't Debate This, Too
Replies: 32
Views: 874

Re: Don't Debate This, Too

Thanks for sharing all the great details of your build Mike! Looks a like a fascinating project. Would it help to cool the mandrel with ice when extracting it from the tube? I am looking very closely with what you do with carbon fiber casing, as we too are in the process of making some high pressure...
by air.command
Mon May 21, 2018 11:15 am
Forum: NSW Rocketry Association
Topic: Mullaley Launch 5th May 2018
Replies: 8
Views: 264

Re: Mullaley Launch 5th May 2018

Here is a highlights video from the Saturday launch.

by air.command
Tue May 15, 2018 3:25 pm
Forum: NSW Rocketry Association
Topic: Mullaley Launch 5th May 2018
Replies: 8
Views: 264

Mullaley Launch 5th May 2018

Hi guys, Here are some photos from the last launch at Mullaley. We had absolutely beautiful weather with blue skies, little wind and nice temperatures. There were some pretty spectacular launches, as well as some sub-optimal ones. http://www.nswrocketry.org.au/gallery/2018_Launches/Mullaley_2018_05_...
by air.command
Mon May 14, 2018 3:19 pm
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 94
Views: 7443

Re: Purple Parrot - MD 38mm

Wow that's awesome. 8) :shock: Congratulations on a great flight Mat. How did the performance compare to simulations?
by air.command
Mon May 14, 2018 2:16 pm
Forum: Scratch Built
Topic: Dark Shadow - Build Thread
Replies: 76
Views: 8355

Re: Dark Shadow - Build Thread

Cheers guys.
@SpaceManMat - That's why dad was wearing an old Helmet, eye protection and earplugs. I don't want to get anywhere near that thing. One day we'll get confetti. :D ...hmmm .... that will have to be the name of the next rocket ... "Carbon Confetti"
by air.command
Mon May 14, 2018 12:10 pm
Forum: Scratch Built
Topic: Dark Shadow - Build Thread
Replies: 76
Views: 8355

Re: Dark Shadow - Build Thread

As it has been a couple of years since we last flew this rocket, it was time to dust it off again at the last Mullaley launch. Here is a highlights video from that flight: fvebpl3W1Sg We are still not sure what the upper pressure limit is for this rocket, though some recent ground tests on similar p...
by air.command
Mon May 07, 2018 12:52 pm
Forum: Scratch Built
Topic: L3 Cert - 1/2 scale Patriot
Replies: 314
Views: 43932

Re: L3 Cert - 1/2 scale Patriot

Well done David! That was a spectacular launch and recovery with Lisa commenting all the way up and down. :D The Patriot is always great to see live. I'll be posting more photos of the Patriot in the next couple of days when I've had a chance to unpack and process the images. I'll post some video of...
by air.command
Wed May 02, 2018 5:56 pm
Forum: Water Rocketry
Topic: New builds and bits
Replies: 4
Views: 251

Re: New builds and bits

Hi Jeremy, glad to hear you are back to building water rockets. The rocket are looking awesome. Thanks for the info on those bottles, I will definitely have to look out for those, as a lot of them these days tend to be shaped. They look like a good size too. What kind of a thread is on these bottles...
by air.command
Wed Feb 07, 2018 9:27 pm
Forum: How's the Weather..?
Topic: Happy birthday Ari
Replies: 25
Views: 2251

Re: Happy birthday Ari

Happy belated birthday from me too Ari ! I hope the candles on your cake didn't generate 5.1million pounds of thrust like that tesla did today. :D
by air.command
Wed Feb 07, 2018 10:12 am
Forum: News & Events
Topic: SpaceX details its plans for landing 3 Falcon Heavy boosters
Replies: 55
Views: 2450

Re: SpaceX details its plans for landing 3 Falcon Heavy boosters

Yeeehhaaaa. That was spectacular. :D I heard someone mention on a live stream that they had overheard the announcer say that the central core was lost at one point. But can't confirm. I suspect that is the case because we would have heard otherwise that it was sucessful. Still there is a Tesla float...
by air.command
Sun Jan 28, 2018 10:13 pm
Forum: NSW Rocketry Association
Topic: Launch Day 27th January 2018
Replies: 4
Views: 489

Re: Launch Day 27th January 2018

Definitely a great turnout to start the year off. Lots of new and old faces too which was great to see. :D
Here is a picture of the flight line at one point during the day:
I will post more pictures when I have had a chance to process them.
Image4_2.jpg
Image4_2.jpg (210.35 KiB) Viewed 425 times
by air.command
Tue Jan 09, 2018 8:44 am
Forum: Air Command Water Rockets
Topic: Horizon - 2 Stage Water Rocket
Replies: 6
Views: 634

Re: Horizon - 2 Stage Water Rocket

Here is the next installment in the series. In this video we discuss the design concept behind the staging mechanism for the rocket. We also do a couple of low pressure test flights to test the concept. zT-8YG1hTyA In the next video we'll have a look at how we modify this design to work with the Hor...
by air.command
Sat Dec 09, 2017 7:24 pm
Forum: Mid/High Powered Rocketry
Topic: Devilish Project (Go Devil 38 kit bash)
Replies: 24
Views: 1008

Re: Devilish Project (Go Devil 38 kit bash)

Looking good OTT. How fast are you expecting it go if you needed to upgrade the fins? :D You mentioned you went through a couple of blades when cutting the CF sheet. Is there a preferred cutting blade matrial for CF? I've gone through a few blades as well.

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