Australian Rocketry Association INC
June 28, 2017, 03:34:36 PM *
Welcome, Guest. Please login or register.

Login with username, password and session length
News: Congrats to Nat from PARC on her Level 3
 
   Home   Help Login Register  
Pages: 1 ... 3 4 [5]   Go Down
  Print  
Author Topic: MickG and Mr hybrid two stage hybrid rocket  (Read 18698 times)
0 Members and 1 Guest are viewing this topic.
Mr hybrid
ARA Member

Offline Offline

Posts: 93


Our 2 stage hybrid.


« Reply #56 on: September 27, 2011, 10:03:40 PM »

so what deploys the piston out and when?

In the booster I'm using one of whoosh tronics magnetic apogee detectors to deploy the parachute. just 0.75 grams of BP is plenty to do the job.
Logged
Mr hybrid
ARA Member

Offline Offline

Posts: 93


Our 2 stage hybrid.


« Reply #57 on: October 12, 2011, 04:52:21 PM »

Hi every one MickG suggested i put some photos of the power plants we are using in our project. The three photos show both the skyripper 54m K motor and along side, the Aerotech 54 RMS Hybrid motor.


Logged
EMiR
ARA Member

Offline Offline

Posts: 1066


Sir L3


WWW
« Reply #58 on: October 12, 2011, 05:03:08 PM »

nice..

I do like to look of the Aerotech motor..

I might have to go on the hunt to see if anyone over in the states would want to part with theirs..

Logged

wolfies gurl
ASIO

Offline Offline

Posts: 3098


Polecat Thumper on an M1297 yeah!!!!!


« Reply #59 on: October 12, 2011, 05:29:11 PM »

I agree Emir it looks nice and clean and it is certainly an interesting way of flying a hybrid.

Mr Hybrid, what is the weight differences between the 2 systems?
Logged

LEVEL 3 - Australia's first female LEVEL 3 Certification. 100% born and bred.

"Never tell me the sky's the limit when there are footprints on the moon"
Mr hybrid
ARA Member

Offline Offline

Posts: 93


Our 2 stage hybrid.


« Reply #60 on: October 12, 2011, 05:39:16 PM »

The Aerotech weighs in at 1500g flight ready (J 144)
The Skyripper weighs in at 2300g when full of N2o  (K 347)
Logged
wolfies gurl
ASIO

Offline Offline

Posts: 3098


Polecat Thumper on an M1297 yeah!!!!!


« Reply #61 on: October 12, 2011, 05:50:07 PM »

The Aerotech weighs in at 1500g flight ready (J 144)
The Skyripper weighs in at 2300g when full of N2o  (K 347)

Wow quite a difference between the two, I wasnt expecting that. Interesting stuff. Have you got any sims to share about the 2 stage flight to tease us with?
Logged

LEVEL 3 - Australia's first female LEVEL 3 Certification. 100% born and bred.

"Never tell me the sky's the limit when there are footprints on the moon"
Goffa
ARA Member

Offline Offline

Posts: 409


Extreme Wildman on M1297W


« Reply #62 on: October 12, 2011, 09:24:53 PM »

done some rocksims on Sean and Mick G's hybrid...
estimate for K347+J145 is 7.8kft
but i havent had much luck yet with rocksim vs actual on hybrid flights...so not much confidence in that number!
Logged

ARA 126
AARC 16
Level 3
Rocketmad
ARA Member

Offline Offline

Posts: 968


I am what I am


« Reply #63 on: October 12, 2011, 09:28:34 PM »

how do you refill the aerotech system?
the sky ripper looks fimilar to the contrail system.
Logged
Mr hybrid
ARA Member

Offline Offline

Posts: 93


Our 2 stage hybrid.


« Reply #64 on: October 14, 2011, 03:11:13 PM »

To Re-fill the aerotech tank, you first have to freeze the tank,  you also need a set of scales 1 or 2 gram accuracy. next you connect the cold tank to your nitrous bottle with the flexible hose provided. Once connected you then place the cold tank on the scales and set the scales to zero, then slowly open the nitrous bottle and the gas will flow to the colder cylinder. you keep it flowing until you have 299 grams in the tank. once you have reached this weight you just shut off the nitrous bottle and disconnect the tank and your done. 
Logged
Rocketmad
ARA Member

Offline Offline

Posts: 968


I am what I am


« Reply #65 on: October 14, 2011, 07:23:29 PM »

cool thats what i was thinking. can you still buy those aerotek hybrid motors?
Logged
wolflair
ARA Member

Offline Offline

Posts: 4357


V2


WWW
« Reply #66 on: October 14, 2011, 09:15:49 PM »

cool thats what i was thinking. can you still buy those aerotek hybrid motors?

not at the moment dude have a look for some second hand ones in the USA
Logged

Join the Australian Rocketry Association INC the largest model and high power rocketry organisation in Australia

ARA # 007
ARA Level 3

WRL Rocketry
Australian Aerotech Dealer
Australian Rocketry Fo
Pages: 1 ... 3 4 [5]   Go Up
  Print  
 
Jump to:  

Design By simply sibyl And CreateAForum.com
Powered by SMF 1.1.20 | SMF © 2013, Simple Machines