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by OverTheTop
Sat Sep 29, 2018 10:29 am
Forum: News & Events
Topic: Airbus signs deal with Aust space agency
Replies: 0
Views: 1371

Airbus signs deal with Aust space agency

Airbus signs deal with Aust space agency Daily Mail, 27SEP2018 Article here: https://www.dailymail.co.uk/wires/aap/article-6212637/Airbus-signs-deal-Aust-space-agency.html?ito=1490 European manufacturing giant Airbus has signed a "strategic statement of intent" with Australia's space agen...
by OverTheTop
Mon Sep 24, 2018 1:07 pm
Forum: Mid/High Powered Rocketry
Topic: Don't Debate This, Too
Replies: 69
Views: 6336

Re: Don't Debate This, Too

Congratulations Mike! :) :) :) 8)

Great news. I hope it can be recovered without too much hassle.
by OverTheTop
Sun Sep 23, 2018 8:30 pm
Forum: Mid/High Powered Rocketry
Topic: Nike Apache Half-Scale Project
Replies: 91
Views: 16847

Minor Update

Minor Update I have decided to use the cosmetic interstage adaptor I made for the Nike Apache a while back for flight. It only needs a little reinforcing at achieve the desired strength. I was going to build one specifically for flight but I may as well use what I have already built. TRACKING I hav...
by OverTheTop
Sat Sep 22, 2018 9:44 am
Forum: How to's
Topic: Questions: Balsa/Carbon Sandwiches
Replies: 10
Views: 24648

Re: Questions: Balsa/Carbon Sandwiches

I have been known to sit the mixing container in ice water to slow things up on hot days.
by OverTheTop
Sat Sep 22, 2018 9:43 am
Forum: Rocketry Control Room
Topic: SPACEX - Telstar 18v Mission
Replies: 4
Views: 943

Re: SPACEX - Telstar 18v Mission

Hi Loewen. Welcome to the forum. SpaceX was getting up a serious launch cadence for quite a while. It is actually in an unusually quite period currently and will pick up a bit towards the end of the year. I am curious as to what else they are working on that is taking up their time. BFR and Crew Dra...
by OverTheTop
Sun Sep 16, 2018 3:07 pm
Forum: Higher, Faster, Further
Topic: Vertical Trajectory System (with some 3D printed parts)
Replies: 69
Views: 32406

It's Back!

Good News After the maiden flight that saw the servos fried by a SBEC that passed 12V directly to them, things are looking better. Following a short period of convalescence and some R&R (that’s Remove and Refit :wink: ) the VTS is again functional. All four servos (I didn’t trust the remaining ...
by OverTheTop
Sun Sep 16, 2018 10:47 am
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 90
Views: 27307

Re: Joe Turner's 38mm Scratch-Build

I find fitting them quite easy. I usually hold the adapter in the vice and screw the assembled motor down onto it by hand. I find it easier to keep it square to the motor that way.
by OverTheTop
Sun Sep 16, 2018 10:44 am
Forum: Scratch Built
Topic: Steampunk 1
Replies: 35
Views: 2153

Re: Steampunk 1

Nice result. Well done 8)
by OverTheTop
Fri Sep 14, 2018 6:43 pm
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 20911

Re: Australian Rocketry shipping container pre-order announcement

I -could- have done an MD O3400 project, but I wouldn't have been able to do much more. I don't get many opportunities to fly these days, so I opted for doing a bunch as well as something I haven't tried before. The O3400 might be a next time around flight. :) I have an O3400 sitting in the cupboar...
by OverTheTop
Fri Sep 14, 2018 6:01 pm
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 20911

Re: Australian Rocketry shipping container pre-order announcement

I did a back the envelope tally - only made it to ~34% O across 31 composite motors in total. I feel so inadequate. :oops:


I am ~31% P I think. Have fun at whatever level you are flying. At least you won't be in the poorhouse as much as me (or the doghouse for that matter).
by OverTheTop
Thu Sep 13, 2018 11:55 am
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 20911

Re: Australian Rocketry shipping container pre-order announcement

I think I should step away from the credit card now. I've got about 50k Ns on order :shock: . Should keep me going for a while.
by OverTheTop
Wed Sep 12, 2018 9:47 pm
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 90
Views: 27307

Re: Joe Turner's 38mm Scratch-Build

Perhaps this is an opportunity to developer lighter extensions - save some weight :-) Probably not a problem :) although vibration can reduce that a little. Yes,something could be done with a finer safety factor to lighten it up if you are really keen. I generally make my own to length and strength...
by OverTheTop
Wed Sep 12, 2018 7:13 pm
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 90
Views: 27307

Re: Joe Turner's 38mm Scratch-Build

Given Joe's using the AeroPack made extensions I can't imagine this would be an issue in the slightest. Remember that those extensions are designed for 38mm and 54mm use. From the site: Precision Machined 6061-T6 Aluminum With Mil-Spec Type II Red Anodizing Each extension has a 5/16-18 Stainless St...
by OverTheTop
Wed Sep 12, 2018 10:38 am
Forum: Scratch Built
Topic: Joe Turner's 38mm Scratch-Build
Replies: 90
Views: 27307

Re: Joe Turner's 38mm Scratch-Build

Question: Aside from weight, and extra effort to set up, I can't think of any issues with combining extensions.... Can anyone else? If it gets too long and there is a weakness in the middle of the extensions it may want to buckle under high thrust. You can work out your peak thrust and see if it is...
by OverTheTop
Wed Sep 12, 2018 7:25 am
Forum: Australian Rocketry
Topic: Australian Rocketry shipping container pre-order announcement
Replies: 30
Views: 20911

Re: Australian Rocketry shipping container pre-order announcement

I have just put in another order, and will have a final one to submit tomorrow (more CTI L motors). I might need a bigger magazine to store everything now I think :shock:

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