At useful concentrations, it can misbehave unpredictably in traditional
liquid propellant systems. Dry, it's hygroscopic as hell and tends to be
unstable with most heterogenous propellant mixtures. I'll leave a liter jar
of it out on the lab bench from time to time just to see if people are
paying attention.
Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
<http://www.cesaronitech.com/> http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Galejs, Robert - 1007 - MITLL
Sent: Thursday, March 23, 2017 3:35 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Hydroxylammoniumnitrate (HAN)
Does anyone here have any experience with HAN? It seems like it would be a
very nice low thrust motor option as a monopropellant with good ISP,
density, low toxicity, etc.
Propep seems to underestimate its performance. I get a vacuum ISP
prediction of around 180 s whereas papers (see
https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19960048008.pdf) peg
it much higher (230+ s).
Thanks,
Robert
