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Engine Survey
I have added an online engine survey to get you input. This is in a constant state of change. As more engines are better characterized, the data will be updated. I will be adding some links to .eng files for Rocksim as I get them completed.
The engines longer than 3.25" are in the future, since they will require a new machine, but we do want to get an idea of interest in current sizes, as well as future sizes. This survey is only for SAM's until we are ready for a larger public exposure. Please send your comments, errors, omissions, ideas, etc. in this thread. We want all SAM's to have as much input in this process as possible. The link is Engine Survey. You have to login to see it. There is a current limit of 100 packs per engine so the results do not get badly skewed. (GH... don't break the B14 buttons! )
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Carl McLawhorn NAR#4717 L2 semroc.com |
#2
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Whoa! That list is dizzyingly (is that a word?) long!
I'll just answer, yes.
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Scott D. Hansen Ye Olde Rocket Shoppe - Your One Stop BAR Shoppe! Ye Olde Rocket Plans - OOP Rocket Plans From 38 Companies! Ye Olde Rocket Forum WOOSH NAR Section #558 |
#3
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Carl,
Are these based on the thrust curves we 'discussed' and even designed a few possible models around over on the SVDT? I'll have to dig out my old engine files...
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Craig McGraw BARCLONE Rocketry -- http://barclone.rocketshoppe.com BARCLONE Blogsite -- http://barclone.wordpress.com BARCLONE Forum -- BARCLONE Forum BARs helping BARs SAM 0044 AMA 352635 |
#4
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Quote:
They are similar, but I have some that are projections (like we did) and some are actual. Since the ID of the Standard increased to .520", they are slightly higher. The 10mm is characterized, but the 15 and 22 are not.
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Carl McLawhorn NAR#4717 L2 semroc.com |
#5
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I agree with Scott....it's hard to wrap one's mind around such a large and varied list.
Some curiosities: It seems that (for now) all the weights are propellant + 1g regardless of form factor or delay. I expect that's a work-in-progress kind of thing. Also, in the "retro" section there are "R" and "RS" entries. The "RS" types are really shorties, right? Finally, the motor designations that are in small type and parentheses are the Estes designations for the same motors, right? In the case of the "retros" they're the pre-metric designations.
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Bernard Cawley NAR 89040 L1 - Life Member SAM 0061 AMA 42160 KG7AIE |
#6
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Quote:
You can understand the magnitude of this. I want two machines to do all 200 or so of the engines with very little changeover between types. The S and RS are shorties. The R designates the Mabel I (.406") ID with thick walls. I am working on the Initial weight. For now it does just add 1 g. That will change to reflect the real weight.
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Carl McLawhorn NAR#4717 L2 semroc.com |
#7
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If one is "logged on" as a SAM through the Semroc website, is there another step in being able to see the engine survey? How does one go about
John |
#8
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Quote:
I am working on that. I think it is a session cookie thing. It works on mine, but not on Sheryl's.
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Carl McLawhorn NAR#4717 L2 semroc.com |
#9
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I don't know if I can afford what I chose, but I'd sure like to give it a shot.
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I love sanding. |
#10
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I took the survey. All I can say is WOW
It would be fun to be able to try many of those. Good luck on this endeavor. |
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