Hello All from Blue Mountains west of Sydney

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Al777
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Hello All from Blue Mountains west of Sydney

Postby Al777 » Thu Jun 29, 2017 8:45 pm

Hello All,
I am not a rocket expert or even close !
I was bitten by the rocket bug some time ago, since then I have been designing a parachute CO2 ejection system See attachment (with some detail removed) Just an indication of a current concept.(Inventor 2016)

I have also been gaining an understanding of hybrid rockets etc. I have purchased a small lathe to manufacture the parachute system /bulkheads ETC & I am looking into building a Arduino based flight controller etc. I will program it on sensor data & also include a GPS tracking from a Drone I made a few years ago.

However apart from being the best hobby ever I have so much to learn , But excited by hopefully having clearance / accreditation to fly in late 2018.

I may not be accredited but look forward to seeing what you all fly at Thunder down under 2018

I hope we can chat & exchange info & advice.

Best wishes & Regards ,
Alex
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CATO
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Re: Hello All from Blue Mountains west of Sydney

Postby CATO » Fri Jun 30, 2017 7:04 am

Hello Alex, and welcome to the forum.
"In thrust we trust"

AMRS 21 L3

Impulse:
2017: 00,000 Ns (00.00% A)
Ns 16: 34,558; 15: 35,955; 14: 6,016; 13: 10,208
PB - Gorilla N2717WC, H: 10,260', S: 1.14M

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SpaceManMat
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Re: Hello All from Blue Mountains west of Sydney

Postby SpaceManMat » Fri Jun 30, 2017 9:19 am

Hi Alex welcome.

Sounds like a whole bunch of stuff your doing from scratch. Good for you.

By accreditied do you mean certified for high powered rockets? I'm thinking the stuff you building is big so you are going to want certification to fly thunda. Anyway that should not be an issue.

Do you have someone helping you with hybrid design, personally I've not got into that but PK who vists here occasionally does. Be warned with testing, if they Cato they are extremely dangerous. Make sure you take proper precautions so you are safe.
QRS: 124
AMRS: 32 L2 RSO
Highest Altitude: 10,849 feet
Largest Motor: CTI 1115J530 IM
Current Project: X Wing

Al777
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Re: Hello All from Blue Mountains west of Sydney

Postby Al777 » Fri Jun 30, 2017 7:10 pm

Hi SpaceManMat,
Thank you,
Your input is appreciated. Safety is the number one priority always.
I have some limited help with the design (an engineer checking my Barlows formula pressure calculations) however we will be doing a lot more study into the venturie effect for the nozzle. this is the science that is all new to me.

Please note: For planed the static tests I am using have a safety factor >5 on the oxidizer tank. Then in the future reduce it to an acceptable airworthiness level. (Based on advice)

I will be also be looking for advice in a few weeks on many topics such as orifice size for N2O tank vent. but my number one priority is the recovery system.

Cheers & thanks for the welcome.

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OverTheTop
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Re: Hello All from Blue Mountains west of Sydney

Postby OverTheTop » Fri Jun 30, 2017 7:31 pm

Welcome Alex. Looks like you are asking the right questions for your progress. Just remember you don't know what you don't know (neither do I :D ) so speak to experts in the hybrid area. I have seen one detonate so you need to proceed with safety and care.

Enjoy the journey!
TRA #13430
L3
"Everybody's simulation model is guilty until proven innocent" (Thomas H. Lawrence 1994)

Al777
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Re: Hello All from Blue Mountains west of Sydney

Postby Al777 » Fri Jun 30, 2017 9:01 pm

Thanks CATO for the welcome (Hope I do not to have a" "Catastrophe At Take Off" if that is your name meaning ??) but it may happen more than once?
Overthetop thanks all I know is that their is more I don't know than I will very know. :D
Thanks I will chat in the hybrid area.

Al777
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Re: Hello All from Blue Mountains west of Sydney

Postby Al777 » Fri Jun 30, 2017 9:04 pm

*ever Know

october sky
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Re: Hello All from Blue Mountains west of Sydney

Postby october sky » Fri Jul 07, 2017 5:35 pm

Hi Alex and welcome to the forum and the awesome hobby of rocketry ! 8)

Take your time and enjoy the ride. Here at QRS one of our early members ( Simon, SUMO in forum ) knows a lot about hybrids....he used to launch quite a few many years ago now...he would also have the know how.

Hope to see you at THUNDA 2018 !

Ari
QRS Inc. NO: 003

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Kryten
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Re: Hello All from Blue Mountains west of Sydney

Postby Kryten » Sat Jul 08, 2017 12:43 pm

You could (should) also come along to a NSWRA launch day. There are several experienced members that may be able to assist
"Pub, ah yes. A meeting place where people attempt to achieve advanced states of mental incompetence by the repeated consumption of fermented vegetable drinks" (“Timeslides”)

Al777
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Re: Hello All from Blue Mountains west of Sydney

Postby Al777 » Sat Jul 08, 2017 7:55 pm

Thanks October Sky,
I will check out "SUMO" posts.then ask questions.

Kryten,
I see Whalan is a go for tomorrow 09/07/17, I hope to pop down to see the action.

Cheers,
Alex

Al777
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Re: Hello All from Blue Mountains west of Sydney

Postby Al777 » Sun Jul 09, 2017 9:31 pm

Hi All,
Thanks all for an amazing experience today!

My kid & I loved it !

I was very impressed how professional & helpful you all were.

Many Thanks to all at Whalan today. I gained a better understanding of the many technical challenges.

I will be readjusting my goals with a slower expectation of rocket flight but... today also gave me extra passion to keep going long term to gain a better understanding..

Thanks

Alex

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SpaceManMat
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Re: Hello All from Blue Mountains west of Sydney

Postby SpaceManMat » Mon Jul 10, 2017 2:30 pm

Sounds like a great time was had Alex.

There is so much to do and learn it pays to enjoy it all.

I cannot tell you how many times I learnt something new (the hard way) by flying a LPR rocket that would have been far more expensive had I learnt it on HPR.

Oh yeah, make sure you plan to turn up to Thunda 2018.
QRS: 124
AMRS: 32 L2 RSO
Highest Altitude: 10,849 feet
Largest Motor: CTI 1115J530 IM
Current Project: X Wing


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