I think 3 Gillette's was the most I ever saw. I think a glass motor like the one here is a worthwhile effort. 1000 fps is inexpensive today (in fact I just ordered one foe something else) might be enough to be useful. Of course 5000 would be really nice. Monroe > -------- Original Message -------- > Subject: [AR] Re: Glass Rocket Engine > From: "" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender > "JMKrell@xxxxxxx" for DMARC) > Date: Fri, September 19, 2014 2:24 pm > To: arocket@xxxxxxxxxxxxx > > > My Optics professor worked at China Lake on laser weapons. We did the > Gillette test. > > Krell > > > In a message dated 9/19/2014 2:03:45 P.M. Pacific Daylight Time, > monroe@xxxxxxxxxxxxxxxxxx writes: > > Nice! How many people remember measuring laser power in Gillette's? > (farther in the video) It really was the standard for a long time. > Interesting and useful idea the glass rocket engine. > > Monroe > > > -------- Original Message -------- > > Subject: [AR] Glass Rocket Engine > > From: Lars Osborne <lars.osborne@xxxxxxxxx> > > Date: Fri, September 19, 2014 1:19 pm > > To: arocket@xxxxxxxxxxxxx > > > > > > High speed video of a clear rocket engine made by rocketdyne in the > 60's. > > > > http://youtu.be/QBV0DED7RYA?t=6m4s > > > > Has anyone made a clear liquid engine since? > > > > Thanks, > > Lars Osborne