44R0Ndin is right. It did have some combustion instabilities that we fixed immediately after that. We used off the shelf audio analysis to determine the frequency and then looked at what systems were seeing something similar and corrected it.
dawson01912, this is a test engine for a flight demonstrator. We are already scaling it up. Plus there are four such engines on any given vehicle so multiply that thrust by four.
btw, i said it was a problem because if it was used on a rocket the singing is a combustion instability that is most often a result of the injectors being misplaced slightly. this can cause pogoing which could damage the engine mounts or payload. it happened on the Atlas rocket used in the mercury/gemini programs, even though it wouldn't damage a nuclear warhead, it would cause many problems in the mercury/gemini capsule because of its much more sensitive instruments and the human on-board
singing like a pipe organ? i'm hearing the sound of a fairly helthy liquid fuelled rocket engine... and why would it have anything to do with the injectors?
For the some of the same reasons that pixel and texel don't (didn't) have an obvious plume when they're flying. The pale blue flame of the small rocket is hard to see by the video cameras of the day against the bulk of the vehicle. However, the LEM liftoff flame would be even more diffuse and would lack any visible structure (mach diamonds) because the launch occurred in a vacuum and not in an atmosphere.
iv81, hydrogen is way to problematic due to temperatures, flammability, storage, and price. We're getting all the performance we need without any of those headaches.
yep, Space Shuttle Main Engines (SSME) are liquid hydrogen (LH2) + Liquid Oxygen (LO2) fueled, but the in the past they have used kerosene and LO2 (apollo saturn V 1st/2nd stage engines) and the new moon shot will use methane (CH4) and LO2 in the cargo launch vehicle along with the 5 segment version of the space shuttle srb's (4 segment is in current use on the space shuttle)
In fact they've been using them for years...uh when did you get on the train. In fact, the concept to use it as a fuel is almost a hundred years old, starting with tsiaskestky, forgive mispelling, and going to the nazis. (Yes I know they used LOX ETHANOL, butt thats because LOX/LH is ridiculously expensive due to the cryogenic processes that must be undertakin
sortalong, that engine ended up with at least a 3:1 throttle ratio. This burn is that same engine with a new injector at 35% throttle: http://youtube.com/watch?v=aKM9Qo0u4WI
Did I personally? No. The company that I do marketing and business development for made it. Its part of our vehicle development program. See http://masten-space.com/
how much does the rocket plus fuel/lox weigh?
mrfrankincense 1 year ago
NICE LONG BURN
mnovratil 2 years ago
well I can say that I know the government doesn't like people launching rockets, but what if you put wings on your car?
abond1007i 2 years ago
whats the fuel consumption on that fabulouspiece of backyard engineering, in lbs/hour
EGCblackknight 2 years ago
u could have gone to the moon with that thing... and back
rcfreak2493 3 years ago
44R0Ndin is right. It did have some combustion instabilities that we fixed immediately after that. We used off the shelf audio analysis to determine the frequency and then looked at what systems were seeing something similar and corrected it.
dawson01912, this is a test engine for a flight demonstrator. We are already scaling it up. Plus there are four such engines on any given vehicle so multiply that thrust by four.
mmealling 3 years ago
Comment removed
dawson01912 3 years ago
btw, i said it was a problem because if it was used on a rocket the singing is a combustion instability that is most often a result of the injectors being misplaced slightly. this can cause pogoing which could damage the engine mounts or payload. it happened on the Atlas rocket used in the mercury/gemini programs, even though it wouldn't damage a nuclear warhead, it would cause many problems in the mercury/gemini capsule because of its much more sensitive instruments and the human on-board
44R0Ndin 3 years ago 2
ya mignt wanna work on the injectors, its singing like a pipe organ, and thats bad
44R0Ndin 4 years ago 2
singing like a pipe organ? i'm hearing the sound of a fairly helthy liquid fuelled rocket engine... and why would it have anything to do with the injectors?
devilledwingding 3 years ago
i was getting the immpression the throat was starting to burn out of it, hence the changing pitch.
TheClaw70 3 years ago
nice. Congratulations from Poland;]
Strunek 4 years ago 2
impressive!!!
mattosoffice 4 years ago
holy sh*t
ilovealtorock 4 years ago
now you need to atatch some wings and a set so some one can fly ill do it if you want=)
t4oe 4 years ago
Strong engine. How come the Apollo LEM Nitrogen tetroxide (N2O4) motor had no rocket flame? Or was NASA already using antigravity technology?
apolloscam 4 years ago
For the some of the same reasons that pixel and texel don't (didn't) have an obvious plume when they're flying. The pale blue flame of the small rocket is hard to see by the video cameras of the day against the bulk of the vehicle. However, the LEM liftoff flame would be even more diffuse and would lack any visible structure (mach diamonds) because the launch occurred in a vacuum and not in an atmosphere.
rossbagley 4 years ago
iv81, hydrogen is way to problematic due to temperatures, flammability, storage, and price. We're getting all the performance we need without any of those headaches.
mmealling 5 years ago
IV81: Whoa! Hydrogen! I'll bet they (professional rocket scientists) never thought of that! You should go to work for NASA!
Gomezcaline 5 years ago
Actually NASA does use hydrogen/oxygen rockets.
slither888 4 years ago
yep, Space Shuttle Main Engines (SSME) are liquid hydrogen (LH2) + Liquid Oxygen (LO2) fueled, but the in the past they have used kerosene and LO2 (apollo saturn V 1st/2nd stage engines) and the new moon shot will use methane (CH4) and LO2 in the cargo launch vehicle along with the 5 segment version of the space shuttle srb's (4 segment is in current use on the space shuttle)
44R0Ndin 3 years ago
In fact they've been using them for years...uh when did you get on the train. In fact, the concept to use it as a fuel is almost a hundred years old, starting with tsiaskestky, forgive mispelling, and going to the nazis. (Yes I know they used LOX ETHANOL, butt thats because LOX/LH is ridiculously expensive due to the cryogenic processes that must be undertakin
plzplz12232 4 years ago
Try using hydrogen instead of isorophyl.
iv81 5 years ago
sortalong, that engine ended up with at least a 3:1 throttle ratio. This burn is that same engine with a new injector at 35% throttle: http://youtube.com/watch?v=aKM9Qo0u4WI
mmealling 5 years ago
problem is u cant throttle it..that technology is expensive and tempermental(ask nasa)
sortalong 5 years ago
VEHICLES good so this is going to be the new supercharger right??? lol but this is pretty neat
MISFITS4LIFE 5 years ago
That's incredible, i'm curious, did you make that?
Jimmywylde 5 years ago
Did I personally? No. The company that I do marketing and business development for made it. Its part of our vehicle development program. See http://masten-space.com/
mmealling 5 years ago
That's a thing of beauty Mike. What happened at the end, was the mixture too oxygen-rich in the last few seconds?
robotguy 5 years ago