× Welcome to the CMASS forum!

A place to discuss anything related to CMASS (and other) launches.

HP pad rail sizes

  • jayhart55
  • jayhart55's Avatar Topic Author
  • Offline
  • Fresh Boarder
  • Fresh Boarder
More
4 months 5 days ago #9761 by jayhart55
HP pad rail sizes was created by jayhart55
Winter project to add rail buttons to my HP rocket. 3 lbs total weight.
What size and approximate length does club have?

Please Log in or Create an account to join the conversation.

  • KennB
  • KennB's Avatar
  • Away
  • Administrator
  • Administrator
More
4 months 5 days ago #9762 by KennB
Replied by KennB on topic HP pad rail sizes
The club has 1010 rails in six-ft and eight-ft lengths.
There is a two-piece 1515 rail that is 12-ft assembled.
There will be some loss of length due to mounting in the stands and standoffs to keep the rockets up from the blast deflectors.

Please Log in or Create an account to join the conversation.

More
4 months 5 days ago #9763 by deangelo54
Replied by deangelo54 on topic HP pad rail sizes
Adding rail buttons is a great project. The MARS club in Geneseo, NY requires that any rocket launched with an F or higher motor use rails. At NY Power 2017 I had to retrofit two of my rockets with 10/10 rail buttons at the field. Last year at a RIMRA launch I did a field modification for a young person's Leviathan because the launch lugs kept coming off.

There are several options on how to add rail buttons depending on the diameter of the the rocket and a few other factors.

The below link is a video I created last year for a young rocketeer. In the video I use a 7/64 bit but since then I have found that the smaller 3/32 bit works just as well if not better.

Here is a professionally produced video.

Please Log in or Create an account to join the conversation.

More
4 months 4 days ago #9765 by guyw
Replied by guyw on topic HP pad rail sizes
We also have mini and micro rails - I think 3 ft each/

Please Log in or Create an account to join the conversation.

  • KennB
  • KennB's Avatar
  • Away
  • Administrator
  • Administrator
More
4 months 4 days ago - 4 months 4 days ago #9766 by KennB
Replied by KennB on topic HP pad rail sizes
Here's one of many threads on TRF about different rails sizes; only the 1010 in this post is generally considered for HPR.
www.rocketryforum.com/threads/2019-updat...i-get-debate.156004/
Last edit: 4 months 4 days ago by KennB.

Please Log in or Create an account to join the conversation.