KNO3 sorbitol propellant

i talk about the underated KNSB propellant. I SHOW INCREADIBLE BURNS!

Category:

Howto & Style

Tags:

• burn
• fuel
• how
• instructional
• KNDX
• KNSB
• KNSU
• propellant
• Rcandy
• rocket
• rocketry
• sorbitol
• test
• to

[TheCommieslayer]

could normal sugar be used instead of sorbitol

[justapyrorocketeer]

Of course. You need to look up R-candy for this formula. It is created in a different manner than the propellant in this video. R-Candy is the most popular sugar based propellant. There are ways in which you can melt the table sugar in the same way that i melted the sorbitol but these methods are very difficult and the end result usually is very brittle. I recomend either this method or the R-candy method

[jezzaforever123]

Good stuff!

I made some KNO3/Sugar mix, the best amount of Iron oxide to put in is about 1%

Generally it'd be a bit darker than pink, it'd be quite dark red when molten.

Btw, it's better to dissolve in water yeah? Because I can't see how this way (just melting it) the KNO3 would fully dissolve in the sorbitol, I can just imagine the KNO3 granules suspending in the mix.

Try dissolving the sorbitol in water, and compare it with the non-dissolved mix!

Great vids though

[justapyrorocketeer]

thanks,

yeah my mix was quite pink for some reason 1-2% is the way to go.

as for your recomendation on dissolving in water, i wouldnt. The method you speak of is the recrystalizing method. This works best for KNSU propellants. The method i used in the video is called the melt and cast method. KNSB needs to be melted and cast as shown in the video or it would be quite brittle and unsatisfactory. (even some people use the melt and cast for KNSU)

thanks again and good luck

JPR

[rcfreak2493]

what temperature are you cooking it at???

[justapyrorocketeer]

230-250 F

[parthct]

I've made recrystallized propellants with a variety of fuels, and personally, I'd say Sorbitol works great (if not the best) with the traditional R-Candy method. Right around 110-130 degrees it is just like play-doh, and you can make into any kind of grain you want without the mess (IMO) of pouring. Wait 10 minutes and your motor is 100% hardened and ready to go. Oh and the best part is you can always bring it back to the playdoh state by simply raising the temperature!! Just my two cents...

[donperry1]

I realize that the melted method creates alot of sparks (clumps of burning fuel) as opposed to the recrystallized method which is pretty smooth.

[hawk1buster]

Has anyone seen AZRon34 on youtube? well have a look at his 5sec. video that will make you rethink any formula you can dream up!

[hawk1buster]

Ok but what the hell is SORBITOL, i'm sure it can be bought from Ebay.....but what is it???

[Lightning3522]

@randyclar747

great question, i am still trying to figure this out

[randyclar747]

Where the hell do you get sorbitol?

[roboticmehdi]

From the performace view, whic one do you think is the best , KNSU or KNSB ?

[brainiac777]

I have been using KNO3+sugar for ages and got terrible results. My rockets went no more than about 3 metres. I would like to make fuel using sorbitol but can't find anywhere in the UK that sells it, even online.