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hey guys anyone know a drag co-efficient for the side of a rocket, a generic shaped rocket will be sufficient EDIT: i was going to use an approximation of a cylinder in turbulent flow (20ms wind wit a diameter of 0.125m you get a reynold number of ~650,000 (turbulent)) which according to...

Hey guys this is just a post to let you know that this thread is still active and im still receiving emails. Cheers

Yes unfortunately in New Zealadn we have a 90 day limit on that claim, i was patient and trusted him, which was a mistake. What he has commited is still fraudulent, and I Believe proper action is necassary, i dont believe thsi hobby should have to put up with vendors such as this. I have...

Another Associate lost $2,000 after making an order 2 years ago, after 1 year of asking for the money back, they money has not been returned. I would also like my money back. I feel it is disappointing that the hobby rocketry community puts up with this lack of integrity in service...

Hi Guys, I am an unhappy customer with Performance Rocketry, i ordered $450 worth of goods 2 years ago, and have not received them. I am aware of others who have had this problem and are interested in legal action against Performance Rocketry. If you have a complaint against this...

what altitude is it good for on either of those M motors?

Who has had problems with this company? i'd lik to hear your comments and opinions thanks

the last page of the question can be found here Link

Hey guys, Didn't really knwo where i could of posted this, either here or techniques... anyway if anyone here has rocket propulsion elements 7th edition and could help me with example 4-3 on page 142 would be great, im having trouble with the first part fo the question, i can do the...

I have bought the Walston, i like how tiny it is. about 30mm long and 10 mm wide Extremely simple to use, put in the battery's and turn your receiver on. i've got 5 miles ground range. 150 hours of transmitter battery The Fixed transmittion frequency is not much fo a concern in New...

What GPS system or Transmitter system do you use? and Why?

only literary including advertising so i may look at adverts, cause they are pretty good at making something look better than it usually is

Hey Guys im amazed at the interest in this thread. i have definately decided that the ugly duckling will be a very good story to use, as it can be taken as those orkward adolecent years thanks to pippen for the initial inspiration althought i do need 4 resources, that will be my...

hmm... thats a really good concept Akpilot

Of cource Health is the defining factor of beauty from a totally scientific approach.. A particular hip to waist ratio is also one of the most consistant variables in which men are attracted to, this is becuase it also has to do with fertility. And woman find a mans BO to smell better when...

Thanks Jflis... i had a look voer the lyrics but i dont know really hwo to relate it to true beauty... im only seeing a guy telling a story about a woman who was modest about her beauty i suppose she was truely beautiful to him, as beauty is in the eye of the beholder... but everyone who...

Hey Guys I have to do a research project for english.. i choose the topic true beauty... :rolleyes: anyway... i need 4 resources to "research" from... i have the movie American Beauty and A Dolls house... this is a pretty B grade play... but we already studied it in class... and so...

If only Sea Launch had an "Add To Cart" button :D

we have a small hill on near about 50 metere sfomr where we lauch and think that would be a good spot to take a bearing and acquire a signal. i had already thought about getting a friend to go hide it and have a look for it.