Search found 998 matches

by strud
Fri Jul 05, 2019 9:56 am
Forum: Support & Recovery & Misc.
Topic: Chute recommendations
Replies: 12
Views: 3304

Re: Chute recommendations

Hi Mike That would be most appreciated Here is their packing instructions, you may already have seen... https://the-rocketman.com/packing/ If you look at their specs for packing volume, these std chutes are meant to be quite good with the 84" (7ft) into 3.85" length for a 3.9" ID tube...
by strud
Thu Jul 04, 2019 3:05 pm
Forum: Support & Recovery & Misc.
Topic: Chute recommendations
Replies: 12
Views: 3304

Re: Chute recommendations

Hi Mike

Are they the 'std' 4 line chutes?

Very interested to know what you think their packing length in a 4" tube is since on their website the packing length for those is quite small. I figured that was because of the low number of lines....
by strud
Thu Jul 04, 2019 4:29 am
Forum: Rocketry Control Room
Topic: Orion Launch Abort
Replies: 3
Views: 1507

Re: Orion Launch Abort

by strud
Mon Jul 01, 2019 11:13 am
Forum: Support & Recovery & Misc.
Topic: Chute recommendations
Replies: 12
Views: 3304

Re: Chute recommendations

Thanks CATO and OTT I did some late night surveying of the commercial offerings last night and there's a lot on offer but selection is not straight forward..... For the lighter of the two vehicles, the Rocketman std chute 84" looks to be quite suitable with a cost of US$65, packed length at 4&q...
by strud
Sun Jun 30, 2019 10:09 pm
Forum: Support & Recovery & Misc.
Topic: Chute recommendations
Replies: 12
Views: 3304

Chute recommendations

I'm in the midst of designing a 4" vehicle with two configurations, with dry/recovery masses of say 11 and 6kg. After looking up a few sources of commercial chutes for these masses, it seems I could be up for between US$200 and US$300 for the likes of an IRIS from Fruity chutes and similar. Thi...
by strud
Tue Jun 25, 2019 10:32 pm
Forum: Higher, Faster, Further
Topic: Boat tail fin can
Replies: 13
Views: 7290

Re: Boat tail fin can

Thanks, was going to look up how to do that soon....
by strud
Tue Jun 25, 2019 10:12 pm
Forum: Higher, Faster, Further
Topic: Boat tail fin can
Replies: 13
Views: 7290

Re: Boat tail fin can

turned to near final shape and then coated with thinned (10%) epoxy (west systems) to seal and provide a bonded surface to turn to the final size. https://drive.google.com/open?id=15UBML8sUYssWXp1eJ05_Ci5IZqciM9Ll https://drive.google.com/open?id=1WNUcm2niKiAKdLDaFAfcr0aR3LZr2SlY left it running at ...
by strud
Tue Jun 25, 2019 12:17 am
Forum: Higher, Faster, Further
Topic: Boat tail fin can
Replies: 13
Views: 7290

Re: Boat tail fin can

Added a centre on the tailstock end

https://drive.google.com/open?id=1EGpGWczp2QeeVocN5HS-HRXAUM984DEc

Will drop some epoxy in the cracks next and when cured turn to near final shape.
by strud
Mon Jun 24, 2019 6:09 pm
Forum: News & Events
Topic: USYD Rocketry Team Win 10k' Challenge at IREC
Replies: 13
Views: 2200

Re: USYD Rocketry Team Win 10k' Challenge at IREC

Excellent news!

Maybe rocketry’s profile can be raised a bit in Australia by this and grab a few seconds of attention away from frigging my kitchen rules and whose got the least brain cells with a pretty face generic TV show....
by strud
Mon Jun 24, 2019 2:32 pm
Forum: Higher, Faster, Further
Topic: Boat tail fin can
Replies: 13
Views: 7290

Re: Boat tail fin can

Hi aircommand At the moment thinking of using West Systems with the fairing compound added. I think there will be some of this used raw as well, poured into the cracks to help hold this all together long term as well, since the pine log is very dry (which is good) and hs cracks. I have some release ...
by strud
Mon Jun 24, 2019 2:06 pm
Forum: Higher, Faster, Further
Topic: Boat tail fin can
Replies: 13
Views: 7290

Boat tail fin can

Hi All I've started on a 4" vehicle design that includes a boat tail for base drag minimisation. The addition of a boat tail makes significant improvements to the simulated altitude and the motor this vehicle is based around allows for a nice boat tail implementation. The current overall design...
by strud
Wed Jun 19, 2019 10:47 pm
Forum: I could use that
Topic: Carbon pricing etc
Replies: 12
Views: 2072

Re: Carbon pricing etc

You have a kindred spirit here Aquaman33 I used to say that making a rocket look good was inviting an attack from the rocket gods..... However I did try and do like others as in paint my rockets with diligence. My first real attempt at this went badly and that rocket was named MIAC (Misery In A Can)...
by strud
Wed Jun 19, 2019 8:55 am
Forum: Electronics
Topic: High side driver with monitoring on sale at Rockby
Replies: 0
Views: 2761

High side driver with monitoring on sale at Rockby

Rockby have these on sale very cheap ($9/100 )

https://www.st.com/resource/en/datasheet/vn5050j-e.pdf

Good current capacity (19A)
High side drive - reduced risk of accidental drive
Load monitoring during no-drive and drive condition
Very small footprint
by strud
Tue Jun 18, 2019 5:07 pm
Forum: I could use that
Topic: Carbon pricing etc
Replies: 12
Views: 2072

Re: Carbon pricing etc

Hi Aquaman33

Luckily I have people in the US I can ship to and then pick it up personally during my travels :-) saving many dollars on shipping costs indeed

Is that coloured glass sleeve?
by strud
Tue Jun 18, 2019 2:17 pm
Forum: I could use that
Topic: Carbon pricing etc
Replies: 12
Views: 2072

Carbon pricing etc

So I recently bought some carbon cloth and sleeves from Soller Composites and came up with a metric to work out the most cost effective way to buy it for my purposes. I intend to make some carbon fins for a rather high speed rocket that needs rigidity, hence cutting up many many layers of thin cloth...

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