Search found 1992 matches

by SpaceManMat
Wed May 16, 2018 1:04 pm
Forum: Hybrid - Crossbreeding Rocketry
Topic: Show us your hybrid
Replies: 77
Views: 9747

Re: Show us your hybrid

Hey Voyager... thank you. I find your work very impressive... and now that Aus has funding for a space agency you’re pretty much unlimited for trial and error. I expect to see something like this from you in the near future. See you later this year in Kelpie land. duyNQs-oSVQ That’s pretty sweet bi...
by SpaceManMat
Tue May 15, 2018 9:09 pm
Forum: Hybrid - Crossbreeding Rocketry
Topic: Show us your hybrid
Replies: 77
Views: 9747

Re: Show us your hybrid

Nice setup, have always wanted to see hybrids in action.
by SpaceManMat
Tue May 15, 2018 9:02 pm
Forum: NSW Rocketry Association
Topic: Mullaley Launch 5th May 2018
Replies: 5
Views: 88

Re: Mullaley Launch 5th May 2018

Great bunch of photos, looks like a lot of fun was had.
by SpaceManMat
Mon May 14, 2018 4:18 pm
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 94
Views: 7282

Re: Purple Parrot - MD 38mm

Raven flight data https://farm1.staticflickr.com/823/28218257438_77e1e5be84_c.jpg Purple Parrot I Motor Altitude Record Close up of ascent, including really nice example of Mach transition in the baro data when dropping out of Mach. https://farm1.staticflickr.com/980/42090808531_012d3c7e77_c.jpg Pur...
by SpaceManMat
Mon May 14, 2018 3:44 pm
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 94
Views: 7282

Re: Purple Parrot - MD 38mm

air.command wrote:Wow that's awesome. 8) :shock: Congratulations on a great flight Mat. How did the performance compare to simulations?


Thanks.

OR was telling me 14,160 feet, so pretty close.
by SpaceManMat
Mon May 14, 2018 3:42 pm
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 94
Views: 7282

Re: Purple Parrot - MD 38mm

I forgot to mention the decent rate was 32 f/s the landing was about 2.3km from the launch site, so moving the launch site was definitely a good move. A number of guys had to trek 1 or 2 km to recover rockets in pretty muddy conditions glad I missed out on that one.
by SpaceManMat
Mon May 14, 2018 2:35 pm
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 94
Views: 7282

Re: Purple Parrot - MD 38mm

Awesome stuff, congratulations Mat! Do you think there would be any altitude difference between the using fly away rail guide or a tower?? Thanks Mat I did some trial sims in OR which suggestted that the lost momentum in the fly away rails and drag cost 20 feet. However that assumed clean and immed...
by SpaceManMat
Mon May 14, 2018 2:21 pm
Forum: Scratch Built
Topic: Dark Shadow - Build Thread
Replies: 76
Views: 8160

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" Might want to invest in a fla...
by SpaceManMat
Mon May 14, 2018 2:03 pm
Forum: Scratch Built
Topic: Dark Shadow - Build Thread
Replies: 76
Views: 8160

Re: Dark Shadow - Build Thread

Nice work, good to see you’re really pushing that thing.

800 psi is crazy high :shock:
by SpaceManMat
Mon May 14, 2018 10:07 am
Forum: Mid/High Powered Rocketry
Topic: Purple Parrot - MD 38mm
Replies: 94
Views: 7282

Re: Purple Parrot - MD 38mm

Now that it’s all offical, I thought I’d share some details of the Purple Parrots record flight to 13,647 feet on an I216. Preparation for the flight went smoothly. The hardest part (as expected) was getting the chute etc into the tiny 13cm recovery bay. I loaded onto the pad at about midday, howeve...
by SpaceManMat
Sat May 12, 2018 2:27 pm
Forum: Australian Model Rocket Society
Topic: New AMRS I Impulse Single Motor Altitude Record
Replies: 6
Views: 186

Re: New AMRS I Impulse Single Motor Altitude Record

Thanks guys. After a year and half delay I finally made it out to Westmar and the prep and flight went down pretty much as planned. Very straight flight, fins stayed on. GPS got a lock right at apogee and gave me an (unofficial) altitude confirmation, last signal must have been a second or less from...
by SpaceManMat
Mon May 07, 2018 10:52 am
Forum: Scratch Built
Topic: L3 Cert - 1/2 scale Patriot
Replies: 314
Views: 43590

Re: L3 Cert - 1/2 scale Patriot

Great to see the patriot flying again. Amazing shot too, Mach diamonds, flying dirt, does it get any better?

You should add Total Ns and Altitude flown to your stats.
by SpaceManMat
Wed May 02, 2018 5:29 pm
Forum: Mid/High Powered Rocketry
Topic: Don't Debate This, Too
Replies: 25
Views: 573

Re: Don't Debate This

Forward closure does not produce thrust, however if it buts up against a bulk head in the rocket then inertia from the rocket will in part push back against the closure and lessen the stress, but I would not count on it. I’m thinking this should be rated for pressure plus thrust although reality is...
by SpaceManMat
Wed May 02, 2018 5:15 pm
Forum: Western Australian Rocketry Society
Topic: 2018 Season Opener - 29th April - Grass Valley
Replies: 14
Views: 493

Re: 2018 Season Opener - 29th April - Grass Valley

Don't blame ya! I had to hitch the trailer Monday morning to pick a set up for Jack's birthday, got home and dumped the boxes for Bec and 'Grandpa' to play with. I went to work, whistling. Smart man! Ha. Look you just have to pretend all those poles are actually body tubes, then it’s much more exci...

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