The asymmetric thrust at the end of the burn concerns me. Don't get me wrong, It's a FANTASTIC piece they built but the rotating thrust can mean death for a rocket engine, much like engineers found in development and testing stages of the F-1 engine. SpaceShipOne when piloted by Mike Melvill also developed a thrust as such which required most of the RCS resources. A problem like that is very dangerous to a mission.
But the star, however, and the stars, however - a bit closer, but still just as cold. And, as during the eclipse, and, as during the eclipse, we are waiting for the light and see the earthly dreams. But we do not dream spaceport rumble, not this icy blue, and we dream of the grass, the grass near the house - green, green grass. OLD SONG FROM USSR xDDDDD
So this is apparently not the full scale suborbital booster but rather a "subspace" booster :-)?:
"The HEAT booster will burn for about 60 seconds, providing 40kN of thrust, resulting in less than 3-g making the trip feasible for humans to endure." (quote from CS website).
So if HEAT-1X only uses 50% of the "full scale" LOX, the effective burning time should be 30 sec, unless of course the thrust is also increased?
Why don't you publish the thrust and chamber pressure measurements?
The oxidizer is LOX pressurized with helium gas. So its not N20 decomposition we are seeing. Anyway the black smoke and the flame characteristics during the last part of the burn indicates that it is burning a fuel rich hydrocarbon mixture. So it must be paraffin that is burning in a low pressure "torch like" flame.
Anyway, the measurements have still not been published!?
Ah I was wondering how long it would take for some 16 year old rocket 'expert' to come along; call it a good burn test but 'to' (sic) bad it was a failure. I'm amazed you managed not to just brand 'epic failure', must have taken all of your self control.
At least the people in this video are out there doing something, I didn't see any rocket videos on his channel.
Perhaps you should look into the facts before you deem something a failure. The HEAT-1X is only running with half the amount of LOX of the full scale HEAT, and that is the reason for the fall in pressure.
As for the paraffin pieces flying out, this is not critical and it comes as no surprise to the rocket team. They are looking into was of reducing it.
This test was a success, and a HUGE one. The largest amateur rocket ever made and fired!
The asymmetric thrust at the end of the burn concerns me. Don't get me wrong, It's a FANTASTIC piece they built but the rotating thrust can mean death for a rocket engine, much like engineers found in development and testing stages of the F-1 engine. SpaceShipOne when piloted by Mike Melvill also developed a thrust as such which required most of the RCS resources. A problem like that is very dangerous to a mission.
KD0IDB 2 months ago
Comment removed
ReCpochta 1 year ago
Mało stabilny ciąg, na pierwszy rzut oka :)
Maciek00007 1 year ago
But the star, however, and the stars, however - a bit closer, but still just as cold. And, as during the eclipse, and, as during the eclipse, we are waiting for the light and see the earthly dreams. But we do not dream spaceport rumble, not this icy blue, and we dream of the grass, the grass near the house - green, green grass. OLD SONG FROM USSR xDDDDD
Mykola40 1 year ago
Hope you will get some great deal for plutonium
Komitet300 1 year ago
holy crap, GL GUYS!!
Odenkay 1 year ago
This is seriously awesome, great work guys
leodido99 1 year ago
Seriously incredible what you guys are doing. I look forward to seeing it progress
deanimus22 2 years ago
Good work :) and waiting for summer lunch :)
madmax10101 2 years ago
So this is apparently not the full scale suborbital booster but rather a "subspace" booster :-)?:
"The HEAT booster will burn for about 60 seconds, providing 40kN of thrust, resulting in less than 3-g making the trip feasible for humans to endure." (quote from CS website).
So if HEAT-1X only uses 50% of the "full scale" LOX, the effective burning time should be 30 sec, unless of course the thrust is also increased?
Why don't you publish the thrust and chamber pressure measurements?
TheRocketexpert 2 years ago
The oxidizer is LOX pressurized with helium gas. So its not N20 decomposition we are seeing. Anyway the black smoke and the flame characteristics during the last part of the burn indicates that it is burning a fuel rich hydrocarbon mixture. So it must be paraffin that is burning in a low pressure "torch like" flame.
Anyway, the measurements have still not been published!?
TheRocketexpert 2 years ago
Marshmallows anyone ?
Docs209 2 years ago
Ah I was wondering how long it would take for some 16 year old rocket 'expert' to come along; call it a good burn test but 'to' (sic) bad it was a failure. I'm amazed you managed not to just brand 'epic failure', must have taken all of your self control.
At least the people in this video are out there doing something, I didn't see any rocket videos on his channel.
rcisthedriver 2 years ago
Very cool. Seems like you have quite a way to go with it. But don't stop!
cwtrain 2 years ago
Fascinating. Burned up all the paraffin early, just N2O decomposition ("monoprop mode") after that? Hope to hear more details.
laboo69 2 years ago
Nice video and very impressive flame.
To bad that the test was a failure.
Fast and good ignition.
The first 10 seconds looks good with sufficient combustion pressure, some "small" pieces of paraffin flying out.
At 20 seconds the chamber pressure is so low that nozzle flow instability prevents a "straight" exhaust.
Rest of burn is just an impressive paraffin "torch" with low thrust .
Based on video the attained impulse may be less then 50% of design value.
When can we see the measurements?
TheRocketexpert 2 years ago 4
Perhaps you should look into the facts before you deem something a failure. The HEAT-1X is only running with half the amount of LOX of the full scale HEAT, and that is the reason for the fall in pressure.
As for the paraffin pieces flying out, this is not critical and it comes as no surprise to the rocket team. They are looking into was of reducing it.
This test was a success, and a HUGE one. The largest amateur rocket ever made and fired!
ProfessorBondo 2 years ago
So you are saying that is was designed to have an effective burning time of just 20 seconds?
Why don't you publish the measurements so we can get the facts?
TheRocketexpert 2 years ago
@ProfessorBondo sry for necroing.... BUT....
They have choosen to use polyurethane for fuel instead of parafine because of the superior mechanical properties of polyurethane.
Take a look at HEAT 1 X P
jnielsen20 1 year ago
@TheRocketexpert You took the words right out of my mouth :) thumbs up
eylusion2 3 months ago
Wauw - Thank you for the video. It was great to see the burn, instead of just hear it like yesterday on the live transmission.
GIRLDANISH 2 years ago
Wow. Excellent video. Thank you for using a tripod and perfect camera adjustment and sharing this.
Odd... it's like the flame is rotating in the last phase. I wonder what that's all about?
yourrrrtube 2 years ago 4