Search found 309 matches

by crom
Sat Mar 30, 2019 6:16 pm
Forum: Queensland Rocketry Society
Topic: 17th March 2019 Launch.
Replies: 3
Views: 569

Re: 17th March 2019 Launch.

by crom
Wed Mar 06, 2019 5:53 pm
Forum: Mid/High Powered Rocketry
Topic: L1 Build - Upgraded Loc IV
Replies: 52
Views: 2352

Re: L1 Build - Upgraded Loc IV

Looking good... All the upgrades look great so far... Looking forward to seeing the rest of the build...
by crom
Sun Feb 17, 2019 8:38 am
Forum: Mid/High Powered Rocketry
Topic: Fin Thickness Calculator
Replies: 2
Views: 333

Re: Fin Thickness Calculator

Thanks Mat!
by crom
Fri Feb 15, 2019 10:52 pm
Forum: Mid/High Powered Rocketry
Topic: Fin Thickness Calculator
Replies: 2
Views: 333

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: 385

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: 736

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: 736

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: 1004

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: 1557

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: 1557

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: 8953

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: 8953

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: 8953

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...

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