If you’re wondering why blogging has been so light as of late, let’s just say we’ve been a bit busy at work these past few weeks. Things are picking up momentum at MSS, with us nearing the completion of our first engine design. I’ve lost track of the number of firings we’ve done, but we’re over 200 by now, with many of them in the 10, 15 and even 40 second range. All in all, we’ve met or exceeded several of our design goals for the engine (including having a slightly higher Isp than our target, as well as having a much better throttling range), and are getting quite familiar with the system. We will be testing a flightweight chamber-saddle-jacket version of the engine in the near future (hopefully Saturday), and then we will start putting together the actual vernier module and finish up the engine control programming. I’ll post some pictures when we get there, but it looks like we’ve just about reached another major milestone with this company. There aren’t very many companies in the world right now that have a 3:1 throttleable, in-air restartable, fully regen-cooled liquid bipropellant engine.
Now we just have to finish putting that vehicle together…..