FWIW on a quick series of runs with Propep 3, optimum Isp is just under 160
seconds for a TiH2:N2 ratio of 75:25.
Optimum mixture of sorbitol and potassium nitrate is about 155 seconds.
It doesn't appear that the game is worth the candle, unless there are other
whiz-bang kinetic properties that will only show up with testing.
Best -- Terry
________________________________
From: arocket-bounce@xxxxxxxxxxxxx <arocket-bounce@xxxxxxxxxxxxx> on behalf of
Henry Spencer <hspencer@xxxxxxxxxxxxx>
Sent: Sunday, March 14, 2021 4:02 PM
To: Arocket List <arocket@xxxxxxxxxxxxx>
Subject: [AR] Re: TiH2: useful in rockets?
On Sun, 14 Mar 2021, Robert Steinke wrote:
Wikipedia says "Titanium is one of the few elements that burns in pure
nitrogen gas". Maybe for a liquid air hybrid you could make use of the
nitrogen as well? Otherwise, I can't see how it would be superior to
lithium hydride or aluminum hydride.