Search found 306 matches

by crom
Fri Feb 15, 2019 10:52 pm
Forum: Mid/High Powered Rocketry
Topic: Fin Thickness Calculator
Replies: 0
Views: 14

Fin Thickness Calculator

Quick question: is anyone aware of an online calculator to determine appropriate fin thickness / fin flutter velocity? I've found FinSim but based on the instructions you'd need a PhD in Physics to understand it and it only seems to be available to US students: http://www.aerorocket.com/finsim.html ...
by crom
Fri Jan 18, 2019 2:08 pm
Forum: Queensland Rocketry Society
Topic: I Need a Nosecone!
Replies: 4
Views: 289

Re: I Need a Nosecone!

Blake is unabe to source you one?

I do have an untouched 98 mm fibreglass nosecone lying around at home I was planning to use for a future project...

https://ausrocketry.com.au/nosecones/fibreglass-carbon-fibre-nosecones/98mm-g12-fw-fibreglass-5-1-vk-nosecone.html
by crom
Mon Jan 14, 2019 11:11 pm
Forum: Queensland Rocketry Society
Topic: 13th January 2019 Launch
Replies: 14
Views: 575

Re: 13th January 2019 Launch

Any word on the success of joeman's flight??
by crom
Mon Jan 14, 2019 11:10 pm
Forum: Queensland Rocketry Society
Topic: 13th January 2019 Launch
Replies: 14
Views: 575

Re: 13th January 2019 Launch

by crom
Tue Dec 18, 2018 10:14 am
Forum: Scratch Built
Topic: "Girandolaaaa" - 12 cluster, spin stabilised rocket!!
Replies: 10
Views: 840

Re: "Girandolaaaa" - 12 cluster, spin stabilised rocket!!

I’ve, was there any video of this? I believe Blake got some slow-mo footage? I managed to film a nano-seconds worth of liftoff (screen-grab in my first post), I’ll upload that this evening and link here, cause it sounds cool 8) I have video of this flight in my December launch compilation on YouTub...
by crom
Mon Dec 17, 2018 3:09 pm
Forum: Queensland Rocketry Society
Topic: 9th December Launch and 2018 AGM
Replies: 16
Views: 1383

Re: 9th December Launch and 2018 AGM

So following some superficial damage to the Quake (photo above) a few hours of careful work have seen the repairs completed. To the untrained eye I doubt that any differences could be discerned... IMG20181216175938.jpg Looking forward to flying it again in January! How much nose weight did you have...
by crom
Sun Dec 16, 2018 6:38 pm
Forum: Queensland Rocketry Society
Topic: 9th December Launch and 2018 AGM
Replies: 16
Views: 1383

Re: 9th December Launch and 2018 AGM

So following some superficial damage to the Quake (photo above) a few hours of careful work have seen the repairs completed.

To the untrained eye I doubt that any differences could be discerned...

IMG20181216175938.jpg
Repairs complete!


Looking forward to flying it again in January!
by crom
Sun Nov 11, 2018 8:11 pm
Forum: Queensland Rocketry Society
Topic: 11th November 2018 Launch
Replies: 12
Views: 8802

Re: 11th November 2018 Launch

by crom
Sun Nov 11, 2018 8:10 pm
Forum: Queensland Rocketry Society
Topic: 11th November 2018 Launch
Replies: 12
Views: 8802

Re: 11th November 2018 Launch

Great day for flying rockets with a dust devil sweeping through mid morning that took flight cards to a higher altitude than some of the rockets! Total flight count for the day was 47 made up of: 4 x A, 3 x B, 16 x C, 4 x D, 3 x F, 7 x G, 5 x H, 2 x I, 3 x J Highlights include: Troy's Task Force X f...
by crom
Tue Nov 06, 2018 11:11 am
Forum: Queensland Rocketry Society
Topic: 11th November 2018 Launch
Replies: 12
Views: 8802

Re: 11th November 2018 Launch

I left a couple of 38mm 3G motor cases and spacers on the field after the last launch (motor retention melted)... If you find some let me know...
by crom
Tue Oct 30, 2018 8:58 pm
Forum: Queensland Rocketry Society
Topic: 14th October 2018 Launch “October Skies”
Replies: 19
Views: 14470

Re: 14th October 2018 Launch “October Skies”

Cluster launch video....

by crom
Mon Oct 29, 2018 7:29 pm
Forum: Queensland Rocketry Society
Topic: 14th October 2018 Launch “October Skies”
Replies: 19
Views: 14470

Re: 14th October 2018 Launch “October Skies”

Great article and lots of photos in Jimboomba Times about yesterday's launch....

https://www.jimboombatimes.com.au/story/5725850/rocket-day-blast-offs-at-cedar-grove/?cs=3389
by crom
Mon Oct 29, 2018 9:31 am
Forum: Queensland Rocketry Society
Topic: Logan City Council - Cedar Grove Community Tree Planting Day - Saturday, 3 November 2018
Replies: 0
Views: 546

Logan City Council - Cedar Grove Community Tree Planting Day - Saturday, 3 November 2018

We have received an invitation to a community tree planting at Cedar Grove. Details below, feel free to contact me for more details... Good afternoon Matt and Blake, On behalf of Logan City Council, please find attached an invitation to a community tree planting day to be held at Cedar Grove on Satu...

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