Stabilizing Spin
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Stabilizing Spin
Hi peeps!
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
Mark Chen
Team Enterprise
Team Enterprise
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Re: Stabilizing Spin
Archived from the old mailing listMark Chen wrote:Hi peeps!
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
Re: Day 73 - Flight report
Hi George,
Nice videos, I loved the first one that flew straight without
twisting, what a great video !! Care to share any knowledge you
learned on getting the wrocket and fins all perfectly aligned ?
I did read somewhere the big pyro guys use jigs / templates to hold
all the pieces perfectly in place while they do this
I was also dissapointed to see the FTC bend so much. While I was
researching for FTC a few months back I came across this company who
is in wetherill park who make polycarbonate tubing, they do 1.5mm, 2mm
and 3mm thick tubing in tube diameter sizes 6mm up to 100mm. They also
say they will do a custom thickness.
I thought this might be interesting to use for higher pressures if I
was to attempt a FTC, I would say the extra thickness would add to the
weight but may solve the bending issue for you.
http://www.pacwestcorp.com.au/Polycarbonate.html
http://www.pacwestcorp.com.au/About%20Us.html
cya
-todd-
HHWRSA
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Re: Stabilizing Spin
We've been thinking about just this very problem because our videos have a lot of spin in them and they get blurry from the spinning. We have a couple of ideas probably similar to yours as well. We're going to try some of them the next time we get good weather/wind conditions. We should compare notes.Mark Chen wrote:Hi peeps!
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
Team U.S. Water Rockets
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Visit USWaterRockets.com
Visit our Blog
Tune in to our YouTube Channel
Visit our Facebook page
Visit our Twitter Page
Opportunity is missed by most people because it is dressed in overalls and looks like work. --Thomas Edison
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Re: Stabilizing Spin
What if you did something like this
It would help prevent the rotational motion from being transferred to the camera. Only problem is that the water and walls would degrade the picture.....-
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Re: Stabilizing Spin
What about a Gyroscope. it resists change
Ascender Water Rockets
http://ascenderwaterrockets.weebly.com/
https://www.youtube.com/channel/UCS2NHXS-VFxEux70DCINR0w
http://ascenderwaterrockets.weebly.com/
https://www.youtube.com/channel/UCS2NHXS-VFxEux70DCINR0w
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Re: Stabilizing Spin
That does give me an idea... what if there were a rotating joint at the top of the rocket that let the top spin independently from the bottom? If the pressure vessel spins the weight of the camera on top should keep it stationary relative to the ground.Blake [B&R Rocketry] wrote:What if you did something like thisIt would help prevent the rotational motion from being transferred to the camera. Only problem is that the water and walls would degrade the picture.....
Thanks for the nudge!
Tim Chen
Captain, Team Enterprise
Captain, Team Enterprise
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Re: Stabilizing Spin
I've hear this suggestion before but I don't know if anyone has ever tried it. I am reluctant to use one because I don't like a heavy metal thing inside my rocket.Brian wrote:What about a Gyroscope. it resists change
Tim Chen
Captain, Team Enterprise
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Re: Stabilizing Spin
I care most about the rocket spinning around when it floats down on the parachute. I have tried 2 and 3 parachutes but I fear the parachutes will tangle. In one way it is safer because with 3 chutes I think one will always open. The chances of all 3 of them tangling are slim, but all those chutes makes launching more complicated. Is there a single chute shape that does not spin?Mark Chen wrote:Hi peeps!
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
Andromeda
No matter where you go, there you are.
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No matter where you go, there you are.
- Buckaroo Bansia
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Re: Stabilizing Spin
Andromeda wrote:I care most about the rocket spinning around when it floats down on the parachute. I have tried 2 and 3 parachutes but I fear the parachutes will tangle. In one way it is safer because with 3 chutes I think one will always open. The chances of all 3 of them tangling are slim, but all those chutes makes launching more complicated. Is there a single chute shape that does not spin?Mark Chen wrote:Hi peeps!
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
What do you think about making a parachute out of one of those triangular "bat" kites? You know those kits that look like a hang glider? I was thinking that a smaller version of one of these kites could be folded with a spring joint at the tip and would act like a person hang gliding as it came down. In theory it should fly in a perfectly straight line.
Spaceman Spiff
"What goes up, must come down"
"What goes up, must come down"
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Re: Stabilizing Spin
With a Nasawing you can realized spin or a straight flight . If the lines are accordingly adjusted, you can control the movement. I built a Wing and obtained the desired effect.
Regards Batkiter
Regards Batkiter
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- Nasawing 600mm, Weight 15 gram
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Re: Stabilizing Spin
Oooh.... that looks SEXY Batkiter! Do you have a picture of the parachute in flight? I need to know if you make the design from a plan or did you come up with the design yourself? I would like to try that design!Batkiter wrote:With a Nasawing you can realized spin or a straight flight . If the lines are accordingly adjusted, you can control the movement. I built a Wing and obtained the desired effect.
Regards Batkiter
Mark Chen
Team Enterprise
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Re: Stabilizing Spin
Haha. I just realized Batkiter did something that didn't use a bat kite!Spaceman Spiff wrote:Andromeda wrote:I care most about the rocket spinning around when it floats down on the parachute. I have tried 2 and 3 parachutes but I fear the parachutes will tangle. In one way it is safer because with 3 chutes I think one will always open. The chances of all 3 of them tangling are slim, but all those chutes makes launching more complicated. Is there a single chute shape that does not spin?Mark Chen wrote:Hi peeps!
Does anybody have ideas how to make our rocket spin less? We have tried everything! I made fins of all sizes from big to small and tried tube fins and skirt fins. It always wants to spin clockwise and it spins so bad that the video is crap.
Tim is putting on some stabilizers we can adjust to see if that helps but it will increase drag, right?
What do you think about making a parachute out of one of those triangular "bat" kites? You know those kits that look like a hang glider? I was thinking that a smaller version of one of these kites could be folded with a spring joint at the tip and would act like a person hang gliding as it came down. In theory it should fly in a perfectly straight line.
LOL!
Mark Chen
Team Enterprise
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Re: Stabilizing Spin
I love it! I would like to know how you designed this too! Did you do it yourself or are there instructions?Batkiter wrote:With a Nasawing you can realized spin or a straight flight . If the lines are accordingly adjusted, you can control the movement. I built a Wing and obtained the desired effect.
Regards Batkiter
What is it made from? Is that Rip Stop nylon?
Spaceman Spiff
"What goes up, must come down"
"What goes up, must come down"
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Re: Stabilizing Spin
It is beautiful, but I don't see how it works. What is the principal and how does it stop ratation on the parachute? Thank you.Batkiter wrote:With a Nasawing you can realized spin or a straight flight . If the lines are accordingly adjusted, you can control the movement. I built a Wing and obtained the desired effect.
Regards Batkiter
Andromeda
No matter where you go, there you are.
- Buckaroo Bansia
No matter where you go, there you are.
- Buckaroo Bansia
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Re: Stabilizing Spin
I built till today 18 kites with the Rogallo Priziple. From 600mm to 3280mm span, with different applications. It is my own Designe. If you are interested, I can show you gladly, how a kite is working and built according to this principle. The material of the glider is coated parachute silk. Extremely ligth and high-duty. I attach a few kite pictures. A small selection of my collection at kites.Spaceman Spiff wrote:I love it! I would like to know how you designed this too! Did you do it yourself or are there instructions?Batkiter wrote:With a Nasawing you can realized spin or a straight flight . If the lines are accordingly adjusted, you can control the movement. I built a Wing and obtained the desired effect.
Regards Batkiter
What is it made from? Is that Rip Stop nylon?
Regards Batkiter
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- Lionhead 3280mm
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- Batkite 1200mm
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