Mumbles Posted August 23, 2011 Posted August 23, 2011 If you're making rocket fuel, you really don't need any dextrin at all. It will consolidate without any problems. I typically add a little bit for some resilience, but not needed.
dan999ification Posted August 23, 2011 Posted August 23, 2011 (edited) If you're making rocket fuel, you really don't need any dextrin at all. It will consolidate without any problems. I typically add a little bit for some resilience, but not needed. i dont use dextrin in the ten millers,this topic has given me an appetite for testing my 10mm [3 oz ish] motors i always wanted them to go for longer and am trying different amounts of fuel and different sized increments to get the timing up, progress is slow but ill be there in one way or another, got 4 batches of new stars [to me] one is a test comp so i have some choice ,the report may be a problem here it might have to be bp. now to make some more tubes. edit: oh and saturdays the night dan. Edited August 23, 2011 by dan999ification
allrocketspsl Posted August 23, 2011 Author Posted August 23, 2011 i dont use dextrin in the ten millers,this topic has given me an appetite for testing my 10mm [3 oz ish] motors i always wanted them to go for longer and am trying different amounts of fuel and different sized increments to get the timing up, progress is slow but ill be there in one way or another, got 4 batches of new stars [to me] one is a test comp so i have some choice ,the report may be a problem here it might have to be bp. now to make some more tubes. edit: oh and saturdays the night dan. I never use dextrin in any rocket fuel,dont see a need even in nozzeless,yeah Dan you might as well enter all you need is three can shells any type report the rocket motor must be bp all else goes just have three second breaks to qualify mate
dagabu Posted August 23, 2011 Posted August 23, 2011 I add the 2% Dextrin so that I can have one mix that can be used for Pulverone, lift and rockets. The amount that the fuel is slowed is so insignificant that it cannot be measured by how high the rocket lifts the shell. Side by side tests with same shells show no difference with the 2% added Dex. -dag
SjeefOne Posted August 23, 2011 Posted August 23, 2011 What ratio's do you use then? is that the pulverone mix you spoke about somewhere around here from Mike S?
dagabu Posted August 23, 2011 Posted August 23, 2011 What ratio's do you use then? is that the pulverone mix you spoke about somewhere around here from Mike S? "I add the 2% Dextrin so that I can have one mix that can be used for Pulverone, lift and rockets."-dag
Mumbles Posted August 23, 2011 Posted August 23, 2011 I got the impression he was asking about what ratios of KNO3, C, and S you use in polverone. The instructions given by Mike do not use 75:15:10.
SjeefOne Posted August 23, 2011 Posted August 23, 2011 I got the impression he was asking about what ratios of KNO3, C, and S you use in polverone. The instructions given by Mike do not use 75:15:10.Indeed, thats what i meant.. IIRC you make mostly nozzled motors right? If you'd use 75-15-10 in a nozzled motor it'd probably CATO pretty hard on you.
dagabu Posted August 23, 2011 Posted August 23, 2011 I will have to look, I have no idea what Mike uses off hand. I make nozzled and nozzleless rockets equally, or closely so. I can get 75:15:10 nozzled rockets to work fine using hardwood charcoal using the UT tooling. In fact, I use 25% whistle as a booster using NEPT heavy walled tubes without issues. -dag
Mumbles Posted August 24, 2011 Posted August 24, 2011 Mr. Swisher's instructions call for the following: 18 lbs. saltpetre (67.3%)4 lbs. air float charcoal (15%)3 lbs. sulphur (11.2%)1 lb. 12 oz. dextrine (6.5%)
Thunderr1 Posted August 24, 2011 Posted August 24, 2011 (edited) I got the Colonel sanders look going myself -dag He is not joking one bit. Man I am hungry for some fried chicken http://www.youtube.c...h?v=cv_zpT4kFc0 Edited August 24, 2011 by Thunderr1
dagabu Posted August 24, 2011 Posted August 24, 2011 He is not joking one bit. Man I am hungry for some fried chicken http://www.youtube.c...h?v=cv_zpT4kFc0 And we wonder where stereotyping comes from? Here is mine.... http://www.youtube.com/watch?v=62RwHHFuf14 -dag
allrocketspsl Posted August 24, 2011 Author Posted August 24, 2011 And we wonder where stereotyping comes from? Here is mine.... http://www.youtube.com/watch?v=62RwHHFuf14 -dag I lived in florida 35 years, Key West for 13 years,wore sandals for ten years before I put on a pair od tenny shoes,now in s. florida and the wife wants to move back to wisconsin,your video gave me the heeebeee jeee bees!
nater Posted August 24, 2011 Posted August 24, 2011 You sound like my cousins from Tampa. We had a nice cool summer a few years ago here in Northern Indiana, they were wearing sweaters and jackets while watching the fireworks on the 4th.
Thunderr1 Posted August 24, 2011 Posted August 24, 2011 Man, as long as its sunny and above 50 I would be outside in shorts and sandals. Hell I swim in the lakes until water gets below 65
allrocketspsl Posted August 25, 2011 Author Posted August 25, 2011 Man, as long as its sunny and above 50 I would be outside in shorts and sandals. Hell I swim in the lakes until water gets below 65 lol,when I was in the Keys and it got to 70 degrees we put on the oven opened the door as we were freezing our asses off,three weeks of winter and it once dipped to 49,I will never forget it!
Thunderr1 Posted August 25, 2011 Posted August 25, 2011 lol,when I was in the Keys and it got to 70 degrees we put on the oven opened the door as we were freezing our asses off,three weeks of winter and it once dipped to 49,I will never forget it! I think we hit close to that below zero with the wind chill added!
dagabu Posted August 25, 2011 Posted August 25, 2011 Minnesota Temperature Conversion Chart 50 Fahrenheit (10 C)New Yorkers try to turn on the heat.Minnesotans plant gardens. 40 Fahrenheit (4.4 C)Californians shiver uncontrollablyMinnesotans sunbathe. 35 Fahrenheit (1.6 C)Italian Cars won't startMinnesotans drive with the windows down. 32 Fahrenheit (0 C)Distilled water freezesMinnesotans water gets thicker. 0 Fahrenheit (-17.9 C)New York City landlords finally turn on the heat.Minnesotans have the last cookout of the season. -40 Fahrenheit (-40 C)Hollywood disintegrates.Minnesotans rent some videos. -60 Fahrenheit (-51 C)Mt. St. Helen's freezes.Minnesota Girl Scouts sell cookies door-to-door. -100 Fahrenheit (-73 C)Santa Claus abandons the North PoleMinnesotans pull down their earflaps. -173 Fahrenheit (-114 C)Ethyl alcohol freezes.Minnesotans get frustrated when they can't thaw the keg. -459.4 Fahrenheit (-273 C)Absolute zero; all atomic motion stops.Minnesotans start asking, "cold enough for ya?" -500 Fahrenheit (-295 C)Hell freezes over.The Vikings win the Super Bowl
allrocketspsl Posted August 25, 2011 Author Posted August 25, 2011 Minnesota Temperature Conversion Chart 50 Fahrenheit (10 C)New Yorkers try to turn on the heat.Minnesotans plant gardens. 40 Fahrenheit (4.4 C)Californians shiver uncontrollablyMinnesotans sunbathe. 35 Fahrenheit (1.6 C)Italian Cars won't startMinnesotans drive with the windows down. 32 Fahrenheit (0 C)Distilled water freezesMinnesotans water gets thicker. 0 Fahrenheit (-17.9 C)New York City landlords finally turn on the heat.Minnesotans have the last cookout of the season. -40 Fahrenheit (-40 C)Hollywood disintegrates.Minnesotans rent some videos. -60 Fahrenheit (-51 C)Mt. St. Helen's freezes.Minnesota Girl Scouts sell cookies door-to-door. -100 Fahrenheit (-73 C)Santa Claus abandons the North PoleMinnesotans pull down their earflaps. -173 Fahrenheit (-114 C)Ethyl alcohol freezes.Minnesotans get frustrated when they can't thaw the keg. -459.4 Fahrenheit (-273 C)Absolute zero; all atomic motion stops.Minnesotans start asking, "cold enough for ya?" -500 Fahrenheit (-295 C)Hell freezes over.The Vikings win the Super Bowl I'll never make it,gotta go a hurricane is brushing by us!
allrocketspsl Posted August 30, 2011 Author Posted August 30, 2011 Did you make it okay with the hurricane? yeah this year should be good for florida as the bulk of storms should track the US east coast(about time),I have been through 6 hurricanes and it ainto no fun although I had a rocket planned for Irene,worlds first bp rocket with star header fired in the eye of a hurricane,hoping someone else will take home that honor! All
californiapyro Posted August 30, 2011 Posted August 30, 2011 yeah this year should be good for florida as the bulk of storms should track the US east coast(about time),I have been through 6 hurricanes and it ainto no fun although I had a rocket planned for Irene,worlds first bp rocket with star header fired in the eye of a hurricane,hoping someone else will take home that honor! All wouldn't that suck if it CATO'd and you lost the record haha
allrocketspsl Posted August 30, 2011 Author Posted August 30, 2011 (edited) wouldn't that suck if it CATO'd and you lost the record haha havent had a CATO with a header on my rockets in about a year,lol you know me test,test and more test before I waist hard work! Heres my report shell for the contest: shell #1: Edited August 30, 2011 by allrocketspsl
Thunderr1 Posted August 30, 2011 Posted August 30, 2011 (edited) http://pyrobin.com/files/photo%20(3).jpg Edited August 30, 2011 by Thunderr1
Thunderr1 Posted August 30, 2011 Posted August 30, 2011 Whoops, screwed that one up. My first ever shells. One on the left is the reports, middle is inserts and right is stars.
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