@@MrMike77471 Me too. My Mama and I had some knock down drag out fights over my desire to skip school and watch the launches!! It usually ended with me getting an ass beating and put on the bus mad 😡 as hell!! Fortunately my teacher asked me why I was so pissed off one morning and she got the TV and let us all watch the launch!
Since the engine was not gimballed the onboard computer used the RCS to correct and change the orientation of the LM. And the Apollo guidance computer was only capable of doing one correction every 2 seconds. And fuel would slosh in the tanks creating more wobbles.
This never gets tired. Call me old fashioned but the moon landings of Apollo have this 'feel' about them I don't think modern missions will capture, regardless of much they accomplish or spectacular they will be. I appreciate the effort and quality you put into each of your videos and I can only imagine the fun you must have going through all the footage and creating these gems for us to enjoy. 👏👍🤓
@@lunarmodule5 I envy your talent and ability to create this (all the computer wizardry) and jealous of all the 'stuff' you must have access to and can immerse yourself in. The love definitely shows through and that's certainly an order of magnitude above any standard documentary film. I don't want to annoy you with endless questions, there are historians I would love to ask how they became historians - but mostly where do they get all their info, pictures, films from... But that said... "Where do you get all your source material from?" Anyway. You are a great one to do this, to give us all such wonderful visuals and information. Thanks seems almost inadequate really, but it's all I have. Thanks man.... Thanks.✌
@@andrewstamford1988 thanks again Andrew, really kind words. The source of the material is mainly from my own collection of over 40 years but also from many fellow space collectors who kindly donate what they have to enhance the productions. Regards LM5
The very fact that they launched with nothing other than the small descent stage itself as the launchpad and the simplicity and reliability of that engine must be the greatest achievement of it all.
From what I’ve read, it was an incredibly simple design. The two chemicals, oxidizer and propellant merely had to come in contact with each other to react (like vinegar and baking soda do). Opening the valves lit the engine.
Thanks for this LM5!! I was kind of a shut-in that summer of 1971 and I think I watched every minute of this on television. Great memories a great mission...
Looking at the lift off in the top right picture, it's interesting to see how quickly the dust settles back to the ground in a vacuum, even in one sixth gravity. No lingering clouds of dust in the air like there would be on Earth. Same when you watch the rooster tails of dust coming from the back of the Lunar rover, despite the dust being incredibly fine.
Yeah, was a great time to be kid. I was 11. With my Irish Family - we were traveling back to Dublin from Kerry and I asked My father to stop the car in the nearest town (which was Nenagh) so we could find a pub with a TV to watch the LEM lift off.
Amazing to see how far that foil from the descent stage flies. One thing that casued the wobble (probably) was the some what extreme angle that the LEM landed on. The most "tilted" LEM of the program.
Well, I'm not 100% sure about which wobble you're talking about. But, with no gimbal, yeah, the ascent stage was always going to wobble (using RCS to correct the trajectory).
@@MrMike77471 You are correct. Damn that e and r key being side by side! 😜. Plus it does not help to be 60 and not wearing my reading glasses when I am typing!
@@lunarmodule5 Sorry if I disturb but I can't find anymore the link to the live of the Apollo 15 splashdown that will happen in a few days, it seems to have disappeared from your channel
@@rogerdarthwell5393 yes there has been an issue with the upload. I will reupload tomorrow and it will be available again. Sorry, should have said. Regards LM5
Dave Scott and Al Worden didn't get along very well before the mission, and after the mission, it was even worse after Worden had that music blasting while they were lifting off. It's a bit legendary that Scott was very mad at Worden for playing it.
Yes. In order to save weight, size, and complexity, they built the ascent stage with a rocket that had no gimbal. (Gimbals are what keeps rockets flying straight, and most rockets have them.) But, for the ascent stage, they really wanted that rocket to be ultra simple with very low odds of failure. It was the only major component of Apollo with no backup plan whatsoever. If that engine didn't work, the astronauts were stranded with no alternate plan. So, the engineers built that thing to be as simple as they could. They used fuels/oxidizers that burned on contact (no ignition system needed). There were only two moving parts in the entire engine, the valve to open the oxidizer, and the valve to open the fuel. Had they put a gimbal on that engine to keep the rocket flying straight, that would have meant more moving parts, more weight, and would have taken up valuable space needed inside the astronauts' living area. So, how did they keep the rocket flying straight (somewhat)? They used the RCS thrusters. But, they didn't want the thrusters going crazy, turning on and off constantly. So, the engineers programmed the computer to allow the gentle rocking motion. They let the thing go off-course, then corrected, then go off-course, then corrected. It burns less RCS fuel that way. And, it's not a constant effort to very quickly burn RCS to correct, burn again to stop the correction, burn again to correct. Astronauts have described the end result like waves on an ocean.
@@rockethead7 Also the guidance computer on board Apollo could only work so fast that it could do one correction every 2 seconds. That's what you're seeing there.
@@srinitaaigaura Wrong. It could correct faster, however, that would have been more wasteful, and would require turning the on/off the thrusters far more often. Instead, they intentionally let it over-correct and just waited for the slower rocking motion. It was a small price to pay for not running the thruster quads every fraction of a second.
Did you see that piece of debris shooting away at lift off? There appeared to be a sizeable chunk of something go flying away from the LM towards, and over the top of, what looked like the Alsep site. Things sure do carry a long way in one sixth gravity and a vacuum! Thanks for another great video, LM5.
@@lunarmodule5 That piece of mylar insulation narrowly missed hitting and knocking out one of the experiments they'd set up there. As you can see there is no air drag whatsoever. You could never do that on earth.
Yes, Warden in the CSM sent it to MCC and they accidentally piped it to the Lunar Module making Scott so furious he yelled at Warden when they hooked back up. Scott was the worst Commander of all Apollo missions.
Well, yes and no. They always landed east to west. And, they wanted to land on the east side of the rille (more interesting other things on the east side than the west side). So, yeah, it's only natural that they'd be taking off to the west (the command module was also going east to west, so that's the direction they needed to go to rendezvous). So, flying over the rille upon liftoff was going to be how it was done.
Do you happen to know if NASA ever recorded altitude & location data (telemetry) on paper? I wanted to graph the ascent on tables to see the flight from that perspective, but can't seem to find the corresponding tables anywhere.
The sun is illuminating the scene from behind.if it was in front it would be full of flare and a poor picture. Apollo12 actually fried their lens on their camera within minutes of their moon walk. That's why there isn't any footage of their 2 EVA's.
@@johnvrabec9747 The LM was filmed from the back to keep it in sight for as long as possible. If it had been filmed from the front it would have flown over the rover when pitching over and then very quickly been out of sight
Because if they had a front view the LM ascent stage would have flown over the the rover when it pitched over, instead of away from it. They wanted to try and capture the pitch over maneuver so they put the rover in a position which meant it was looking at the rear of the LM
In addition to what lunarmodule5 wrote, you also have to understand that the sun would have been in front of them if they pointed the camera at the front of the lunar module instead of the back. The plan was to tilt the camera up as the lunar module lifted off. But, Apollo 15's camera's tilt mechanism had broken. So, tilting up wasn't an option on that mission. But, still, they wanted the sun to be behind the camera for the best lighting, not in front of it.
![Apollo 14 Remastered (50th Anniversary) [4K]](http://i.ytimg.com/vi/HQa-1xyg6Iw/mqdefault.jpg)
Watched this 50 years ago on live TV! Fabulous time to be a kid.
Kids today see a Dragon launch and think that's cool...if only they understood what you saw 50 years ago..amazing to think
And a brand new fighter jet every year or two.
AMEN to that. I was 9 years old, and glued to the TV ANYTIME there was anything APOLLO on the air.
Same here. 10 years old. The space program turned me towards a science future and I wound up a physicist and electrical engineer.
@@MrMike77471 Me too. My Mama and I had some knock down drag out fights over my desire to skip school and watch the launches!!
It usually ended with me getting an ass beating and put on the bus mad 😡 as hell!!
Fortunately my teacher asked me why I was so pissed off one morning and she got the TV and let us all watch the launch!
I'm always amazed how the thing wobbles around as it ascends.
Always thought it must have been an amazing ride from the surface up to orbit. Would absolutely loved to do it 😍
Since the engine was not gimballed the onboard computer used the RCS to correct and change the orientation of the LM. And the Apollo guidance computer was only capable of doing one correction every 2 seconds. And fuel would slosh in the tanks creating more wobbles.
This never gets tired.
Call me old fashioned but the moon landings of Apollo have this 'feel' about them I don't think modern missions will capture, regardless of much they accomplish or spectacular they will be.
I appreciate the effort and quality you put into each of your videos and I can only imagine the fun you must have going through all the footage and creating these gems for us to enjoy. 👏👍🤓
Thanks for the comment - it is definitely a labour of love
@@lunarmodule5 I envy your talent and ability to create this (all the computer wizardry) and jealous of all the 'stuff' you must have access to and can immerse yourself in.
The love definitely shows through and that's certainly an order of magnitude above any standard documentary film.
I don't want to annoy you with endless questions, there are historians I would love to ask how they became historians - but mostly where do they get all their info, pictures, films from... But that said... "Where do you get all your source material from?"
Anyway. You are a great one to do this, to give us all such wonderful visuals and information. Thanks seems almost inadequate really, but it's all I have.
Thanks man.... Thanks.✌
@@andrewstamford1988 thanks again Andrew, really kind words. The source of the material is mainly from my own collection of over 40 years but also from many fellow space collectors who kindly donate what they have to enhance the productions. Regards LM5
Excellent post! You are preserving history, providing forever an archive of the most audacious effort in human history. Thank You.
Thanks Steve
The very fact that they launched with nothing other than the small descent stage itself as the launchpad and the simplicity and reliability of that engine must be the greatest achievement of it all.
From what I’ve read, it was an incredibly simple design. The two chemicals, oxidizer and propellant merely had to come in contact with each other to react (like vinegar and baking soda do). Opening the valves lit the engine.
Take off from the moon - heart rate on Scott - SEVENTY FOUR? Holy crap!
Fantastic animation! Able to pick out landmarks the ascent in the real footage and I think I finally understand those pictures!
I was also amazed sitting there watching it..
Thanks for this LM5!! I was kind of a shut-in that summer of 1971 and I think I watched every minute of this on television. Great memories a great mission...
You're very welcome!
Not long ago I got to see the Apollo 15 capsule at the national museum of the United States Air Force. It was amazing.
Would love to see Endeavour
@@lunarmodule5 yes it was an amazing time, also got to see an x-15
Wright Patterson AFB.......Grew up around there and used to go to the Museum in the 70's amassing place full of history!
Looking at the lift off in the top right picture, it's interesting to see how quickly the dust settles back to the ground in a vacuum, even in one sixth gravity. No lingering clouds of dust in the air like there would be on Earth. Same when you watch the rooster tails of dust coming from the back of the Lunar rover, despite the dust being incredibly fine.
Deniers see clouds of dust "like shoot on the Earth" in these images.lmao
Looking forward to Apollo 15 . You do excellent work with your videos they should be on dvd
Thanks dmh
@@lunarmodule5 BTW how long the livestream is going to be?
1 hr 45
@@lunarmodule5 Thanks
15 was the greatest flight!
Yeah, was a great time to be kid. I was 11. With my Irish Family - we were traveling back to Dublin from Kerry and I asked My father to stop the car in the nearest town (which was Nenagh) so we could find a pub with a TV to watch the LEM lift off.
Did u get to see it?
@@lunarmodule5 Sure did Sir.
@@Victor-sh1ez awesome
Another SLAM DUNK of a video from LM 5!!! Awesome as a possum with a blossom!!! Thank you lots, LM 5!!! :) :) :)
Thanks Pine
Happy 50 years apollo 15 50th anniversary that's amazing wonderful. I enjoy watching this thanks a lot lm5. Love space exploration.🇺🇸🇺🇸🇺🇸
Glad you enjoyed it Neil
Great stuff Simon. Thanks! 🚀🏴
Always welcome William 🙂
Thanks so much for these videos. Tried to watch this one with Jim Irwin's perspective in mind, battling as he was with his heart condition
Welcome Kyle
1:20:16 "Off we go into the wild, um, black yonder." 1:42:50 - CAPCOM agrees.
yup
Flat earthers be like “so they built a 2000 mile wide sound stage…”
Great stuff! Thanks for this! More great animation. Very helpful to understand the real footage from the ascent module.
Glad it was helpful!
Amazing to see how far that foil from the descent stage flies.
One thing that casued the wobble (probably) was the some what extreme angle that the LEM landed on. The most "tilted" LEM of the program.
Well, I'm not 100% sure about which wobble you're talking about. But, with no gimbal, yeah, the ascent stage was always going to wobble (using RCS to correct the trajectory).
The one guy you can thank for figuring out orbital rendezvous is Edwin E. "Buzz" Aldrin.
He did his thesis on the subject...
Just to "nitpick" a little, I believe Buzz's middle initial is "E" (for Eugene if memory serves).
@@MrMike77471 You are correct. Damn that e and r key being side by side! 😜. Plus it does not help to be 60 and not wearing my reading glasses when I am typing!
Nice work as always!!!
Appreciate that
Kudos for your efforts in putting these videos together LM5
Thanks @gas
@@lunarmodule5 Sorry if I disturb but I can't find anymore the link to the live of the Apollo 15 splashdown that will happen in a few days, it seems to have disappeared from your channel
@@rogerdarthwell5393 yes there has been an issue with the upload. I will reupload tomorrow and it will be available again. Sorry, should have said. Regards LM5
@@lunarmodule5 No worries, thank you!
That was awesome how they added the Air Force theme song
Dave Scott and Al Worden didn't get along very well before the mission, and after the mission, it was even worse after Worden had that music blasting while they were lifting off. It's a bit legendary that Scott was very mad at Worden for playing it.
Back in the days when the TPI reports were in the proper format! :)
After liftoff, the LEM sure is rocking back and forth.
Yes. In order to save weight, size, and complexity, they built the ascent stage with a rocket that had no gimbal. (Gimbals are what keeps rockets flying straight, and most rockets have them.) But, for the ascent stage, they really wanted that rocket to be ultra simple with very low odds of failure. It was the only major component of Apollo with no backup plan whatsoever. If that engine didn't work, the astronauts were stranded with no alternate plan. So, the engineers built that thing to be as simple as they could. They used fuels/oxidizers that burned on contact (no ignition system needed). There were only two moving parts in the entire engine, the valve to open the oxidizer, and the valve to open the fuel. Had they put a gimbal on that engine to keep the rocket flying straight, that would have meant more moving parts, more weight, and would have taken up valuable space needed inside the astronauts' living area. So, how did they keep the rocket flying straight (somewhat)? They used the RCS thrusters. But, they didn't want the thrusters going crazy, turning on and off constantly. So, the engineers programmed the computer to allow the gentle rocking motion. They let the thing go off-course, then corrected, then go off-course, then corrected. It burns less RCS fuel that way. And, it's not a constant effort to very quickly burn RCS to correct, burn again to stop the correction, burn again to correct. Astronauts have described the end result like waves on an ocean.
@@rockethead7 Also the guidance computer on board Apollo could only work so fast that it could do one correction every 2 seconds. That's what you're seeing there.
@@srinitaaigaura
Wrong. It could correct faster, however, that would have been more wasteful, and would require turning the on/off the thrusters far more often. Instead, they intentionally let it over-correct and just waited for the slower rocking motion. It was a small price to pay for not running the thruster quads every fraction of a second.
Great videos you do fantastic
Thanks Neil
Another outstanding video. Thank you Lunar Module 5!
Welcome Mark
Did you see that piece of debris shooting away at lift off? There appeared to be a sizeable chunk of something go flying away from the LM towards, and over the top of, what looked like the Alsep site. Things sure do carry a long way in one sixth gravity and a vacuum!
Thanks for another great video, LM5.
I love that debris, really shows the momentum of objects in 1/6 and is just plain great to watch
@@lunarmodule5 That piece of mylar insulation narrowly missed hitting and knocking out one of the experiments they'd set up there. As you can see there is no air drag whatsoever. You could never do that on earth.
I´m watching it at 2024 and I still can´t believe, what was possible 53 years ago. What people could handle before 53 years. Unbelievable!
The music after liftoff lol. If I recall correctly in the first few seconds no one in MCC except for CAPCOM knew where it was coming from.
Yes, Warden in the CSM sent it to MCC and they accidentally piped it to the Lunar Module making Scott so furious he yelled at Warden when they hooked back up. Scott was the worst Commander of all Apollo missions.
I've always wondered how they planned the mission to take a turn up the rille after liftoff? It can't be just a coincidence.
Well, yes and no. They always landed east to west. And, they wanted to land on the east side of the rille (more interesting other things on the east side than the west side). So, yeah, it's only natural that they'd be taking off to the west (the command module was also going east to west, so that's the direction they needed to go to rendezvous). So, flying over the rille upon liftoff was going to be how it was done.
Do you happen to know if NASA ever recorded altitude & location data (telemetry) on paper? I wanted to graph the ascent on tables to see the flight from that perspective, but can't seem to find the corresponding tables anywhere.
I don't know if it's available..best place to ask would be the Apollo Lunar Surface Journal..or one of the many Facebook pages dedicated to Apollo
Don't be silly.
Best thing ever
I always wondered why the rover was always parked behind the lm and never in front
me too!!
The sun is illuminating the scene from behind.if it was in front it would be full of flare and a poor picture. Apollo12 actually fried their lens on their camera within minutes of their moon walk. That's why there isn't any footage of their 2 EVA's.
@@johnvrabec9747 ah yeah that's why...I should have thought that! Thank you
Yeah that makes sense,
@@johnvrabec9747 The LM was filmed from the back to keep it in sight for as long as possible. If it had been filmed from the front it would have flown over the rover when pitching over and then very quickly been out of sight
So they did a dog leg turn over the Hadley Rille...
They did Indeed
Всех с юбилеем.
Спасибо
spasibo
Is that an antenna changing position at the top of the LEM at about 44:00?
Yup
That's the rendezvous radar dish, FYI.
The Air Force Song for an all Air Force crew :)
1:20:11 - 1:21:43
Lift off at 1:20:10
It was an all-USAF crew, after all. ;)
why the takeoff of the LM is always filmed by the rober showing the rear part of the LM? why not the front part??
Because if they had a front view the LM ascent stage would have flown over the the rover when it pitched over, instead of away from it. They wanted to try and capture the pitch over maneuver so they put the rover in a position which meant it was looking at the rear of the LM
In addition to what lunarmodule5 wrote, you also have to understand that the sun would have been in front of them if they pointed the camera at the front of the lunar module instead of the back. The plan was to tilt the camera up as the lunar module lifted off. But, Apollo 15's camera's tilt mechanism had broken. So, tilting up wasn't an option on that mission. But, still, they wanted the sun to be behind the camera for the best lighting, not in front of it.
@@rockethead7 Thank you for your useful information
Apollo 🌕⭐🦅
Not a whole lot happening in the video, is there?
well, I have found in space missions the irony is that things don't move on very fast...which is ironic considering the speeds of the spacecraft
00000800
🤣😂🤣😂🤣😂🤣😂