Search found 90 matches

by Voyager
Fri Mar 01, 2019 1:39 pm
Forum: Propulsion
Topic: Hybrid Rocket Engine Tips
Replies: 4
Views: 371

Re: Hybrid Rocket Engine Tips

I use N2O bottles from Gas & Gear (a BOC dealer). They also supply regulators and various fittings necessary for hybrid GSE. I would refer you to a very good publication "The Science and Design of the Hybrid Rocket Engine" by Richard M Newlands (Aspirespace) for details such as O/F rat...
by Voyager
Wed Nov 14, 2018 4:50 pm
Forum: How's the Weather..?
Topic: Strange Goings On
Replies: 8
Views: 2484

Re: Strange Goings On

Has it got anything to do with Google Bot or Baidu Spider?
by Voyager
Thu Nov 01, 2018 4:41 pm
Forum: Canberra Rocketry Group
Topic: CRG's November 2018 LPR/MPR Launch at Yass
Replies: 1
Views: 19470

Re: CRG's November 2018 LPR/MPR Launch at Yass

Unfortunately we’ve had to cancel next Sunday’s launch due to the current & forecast conditions of heat, lack of significant rain & high winds. We will, however, be organising a day later in November, or early December, to lay a slab for our range shed.
by Voyager
Mon Oct 29, 2018 10:24 pm
Forum: Canberra Rocketry Group
Topic: CRG's November 2018 LPR/MPR Launch at Yass
Replies: 1
Views: 19470

CRG's November 2018 LPR/MPR Launch at Yass

Canberra Rocketry Groups next low and mid power launch will be held at our Manton Road launch site on Sunday November 4th, weather permitting. The lack of recent rain has meant that the paddock at the launch site is drying off rapidly with this wind and heat. There is a chance of rain later in the w...
by Voyager
Mon Oct 01, 2018 11:37 pm
Forum: Canberra Rocketry Group
Topic: CRGs' September 2018 HPR Launch at Ardlethan
Replies: 2
Views: 3890

Re: CRGs' September 2018 HPR Launch at Ardlethan

Sorry for the delay in reporting back about the CRGs' last HPR launch for 2018 at Ardlethan, folks! It was a beauty! Most days were perfect rocket flying weather. Please head over to our Facebook page to read a more detailed description and view a selection of images from our 20th Ardlethan launch.
by Voyager
Sun Sep 23, 2018 4:16 pm
Forum: Mid/High Powered Rocketry
Topic: Nike Apache Half-Scale Project
Replies: 95
Views: 19344

Re: Nike Apache Half-Scale Project

Never mind - I just read your earlier post about the machined canisters.
by Voyager
Sun Sep 23, 2018 4:13 pm
Forum: Mid/High Powered Rocketry
Topic: Nike Apache Half-Scale Project
Replies: 95
Views: 19344

Re: Nike Apache Half-Scale Project

Nice sled OTT. What are you using for the BP canisters?
by Voyager
Sun Sep 02, 2018 3:47 pm
Forum: Scratch Built
Topic: L3 Cert - 1/2 scale Patriot
Replies: 326
Views: 54712

Re: L3 Cert - 1/2 scale Patriot

CATO wrote:... what could possibly go wrong :shock: .

Hopefully not a C_A_T_O, CATO! :shock:

Have a great flight!
by Voyager
Wed Aug 29, 2018 6:21 pm
Forum: Canberra Rocketry Group
Topic: CRGs' September 2018 HPR Launch at Ardlethan
Replies: 2
Views: 3890

CRGs' September 2018 HPR Launch at Ardlethan

Canberra Rocketry Groups' 3rd and final high power launch for 2018 will take place from Monday 10th to Friday 14th of September at our Ardlethan launch site, weather permitting. This is an extended launch to compensate for the one we missed in March due to the Groups' CAP Expo participation in March...
by Voyager
Wed Aug 29, 2018 6:08 pm
Forum: Canberra Rocketry Group
Topic: CRGs' September 2018 LPR/MPR Launch at Yass
Replies: 0
Views: 1118

CRGs' September 2018 LPR/MPR Launch at Yass

The next CRG low and mid power launch day will be held on Sunday the 2nd September at our Manton Road launch site, weather permitting. Launch activities will kick off at 09:00 to about 13:00. Meet at the house at 8:30 AM for a cuppa. All rocketeers are welcome to come along and join us sending rocke...
by Voyager
Mon Aug 20, 2018 5:17 pm
Forum: Australian Rocketry
Topic: Security Error on Aus Rocketry site
Replies: 2
Views: 774

Security Error on Aus Rocketry site

I'm getting a security error when trying to access the online store. Is this real or not? "ausrocketry.com.au uses an invalid security certificate. The certificate expired on Monday, 20 August 2018, 9:59:59 am. The current time is 20 August 2018, 5:09 pm. Error code: SEC_ERROR_EXPIRED_CERTIFICA...
by Voyager
Sun Jul 22, 2018 3:13 pm
Forum: Canberra Rocketry Group
Topic: CRGs' June 2018 HPR Launch at Ardlethan
Replies: 7
Views: 1284

Re: CRGs' June 2018 HPR Launch at Ardlethan

Congrats on the good day and flights. If you get GPS locations for launch and landing (and record an altitude as well) of each flight you can do some statistical analysis on that and prove to CASA or Air Services what your expected cylinder you need will be if you request a higher ceiling. We had c...
by Voyager
Tue Jul 03, 2018 10:03 am
Forum: Hybrid - Crossbreeding Rocketry
Topic: N2O cylinder temperature control
Replies: 1
Views: 22446

N2O cylinder temperature control

What techniques have folks been using to control the temperature of the N2O cylinder when it’s sitting out at the pad? I know that some use wet towels or insulation to keep the temperature down in Summer, and perhaps a bath of warm water in Winter. Is anyone using a higher tech means of achieving te...
by Voyager
Sat Jun 30, 2018 3:24 pm
Forum: Canberra Rocketry Group
Topic: CRGs' June 2018 HPR Launch at Ardlethan
Replies: 7
Views: 1284

Re: CRGs' June 2018 HPR Launch at Ardlethan

Thanks guys! Thanks for the airspace tips too, OTT. We'll need to look into this because we will soon run out of upper limit. We currently share the airspace we do have with Rex Aviation. They have a regular Sydney-Griffith-Sydney service that directly over-flies our launch site. We have a standing ...

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