Best Practice.
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GregGleason
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First of all, welcome!
I believe that the conventional wisdom is to tie it on the end of the streamer. What you are going for is for the streamer to create drag by the flapping back and forth on descent. I think if you had it tied in the middle you would shorten the "flapping cycle" which could decrease the drag, and therefore increase the rate of descent.
IIRC, there is a ratio of width to length for a streamer found in the Handbook of Model Rocketry, but I don't have it nearby.
Greg
I believe that the conventional wisdom is to tie it on the end of the streamer. What you are going for is for the streamer to create drag by the flapping back and forth on descent. I think if you had it tied in the middle you would shorten the "flapping cycle" which could decrease the drag, and therefore increase the rate of descent.
IIRC, there is a ratio of width to length for a streamer found in the Handbook of Model Rocketry, but I don't have it nearby.
Greg
o1d_dude
'I battle gravity'
The ratio is 10:1 as I recall.
Welcome to TRF Bert:
First there really is not such thing as "best".
As with so many things about our hobby It really depends on what YOUR intended use is for the Streamer, and in what type model it's being flown.
Are we talking about Sport flying or Compeitition type models?
What Materal....Mylar, Crepe paper, Wrapping paper mylar, Space blanket, Tracing paper,Teflon tape, Surveyers tape or Rip-stop nylon?
For most cases attachment is at the end of the strip, but not always. If we're talking about compeititon type accordian folded mylar streamer that end attachment may be in the center of the leading edge or along one side.
Some Sport flight surveyers tape steamers are simply tied in the middle directly to the shockline.
Here are a few examples of streamers I've made...all are end attached, some center mount, some corner mount but that just the way I make them...others do lots of other things
The 10:1 length to width suggestion is just that; a suggestion. it's really a rule of thumb form back in the day when crepe paper streamers were the main material in competitions. Depending on the material much longer lengths can & do work will, My Estes Goblin D powered bird flies with a 2" x 120" crepe streamer all the time.
Hope this helps a little.
First there really is not such thing as "best".
As with so many things about our hobby It really depends on what YOUR intended use is for the Streamer, and in what type model it's being flown.
Are we talking about Sport flying or Compeitition type models?
What Materal....Mylar, Crepe paper, Wrapping paper mylar, Space blanket, Tracing paper,Teflon tape, Surveyers tape or Rip-stop nylon?
For most cases attachment is at the end of the strip, but not always. If we're talking about compeititon type accordian folded mylar streamer that end attachment may be in the center of the leading edge or along one side.
Some Sport flight surveyers tape steamers are simply tied in the middle directly to the shockline.
Here are a few examples of streamers I've made...all are end attached, some center mount, some corner mount but that just the way I make them...others do lots of other things
The 10:1 length to width suggestion is just that; a suggestion. it's really a rule of thumb form back in the day when crepe paper streamers were the main material in competitions. Depending on the material much longer lengths can & do work will, My Estes Goblin D powered bird flies with a 2" x 120" crepe streamer all the time.
Hope this helps a little.
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