Lunar Drone Lander Mac OS
- Apr 21, 2013 Games10.zip Download: Games #10 - 3rd Floor, AdventureMaker, Black Box, Break the Bricks, Brickles, Glypha, Kid Pix, Go, Lunar Lander, Mac Pong II, Missile, Social.
- This is a list of designs for crewed lunar landers, that is to say a spacecraft intended to land on the Moon, and for inclusiveness the designs meant to ascend are included also.A key aspect is achieving a soft landing, and for an ascent stage to successfully escape the Moon's surface gravity. Another aspect is how many stages the design has to achieve its objective, and the number of.
The current version of the Virtual AGC software has been designed to work in Linux, in Windows XP/Vista/7, and in Mac OS X 10.3 or later (but 10.5 or later is best). It also works in at least some versions of FreeBSD. However, since I personally work in Linux, I have the most confidence in the Linux version.
This article will dig down into the basics of NASA’s Apollo 11 Lunar Module (LM). Find some interesting facts through pictures and see rare photos inside the lunar lander. Join me for a basic understanding of this fantastic machine.
“The Eagle Has Landed”
The epic achievement of men in space — and those on the ground — who, working together, scored a perfect landing on another World.
“…We copy you down, Eagle.”
“Houston… Tranquility Base here… The Eagle has landed!”
Michael Collins writes that the Eagle is “the weirdest looking contraption I have ever seen in the sky,” but it will prove its worth.
The Lander, also known as the Lunar Module (LM), was a two-stage craft built to separate from the Apollo Command and Service Module and then travel to and from the moon’s surface. When it comes time to set Eagle down in the Sea of Tranquility, Neil Armstrong improvises, manually piloting the lunar Module past an area littered with boulders.
It first landed on the moon on 20 July 1969. Generally, the descent stage was left on the moon, while the ascent stage crashed into the moon’s surface once the astronauts returned to the Command Module. Each of the 15 Apollo LMs had unique names. The Apollo 11 LM was named the Eagle, which explains why Neil Armstrong stated that “the Eagle had landed” when it touched down.
Lunar Drone Lander Mac Os X
Why Was The Lunar Module (LM) Designed With Such a Peculiar Shape?
The upper part, called the Ascent stage, and the lower part called the Descent stage, was connected one above another (making the Descent stage as a launchpad for the ascent stage after landing) just as required.
- The overall weird lump’’ shape – The LM never had to fly in an atmosphere, so aerodynamics was irrelevant. Balance and weight were important – streamlining was not.
Why Did LM Have Folding Legs?
- The multi-jointed folding legs – so that the LM would fold up small enough to fit inside the Saturn V and then extend out to give a wide, stable platform for landing and takeoff.
What Was The Gold Foil For?
- The gold foil: Was made for thermal protection.
How Many Stages on LM?
- The two-stage design – a Descent Stage for landing and an Ascent Stage for returning to lunar orbit.
Why Had Lunar Module Wide Footpads?
- The wide footpads – to stop from sinking into the dusty surface
What Was The Long Rods For?
- The long rods were extending from the footpads – lunar contact probes that lit a lamp in the cockpit when they touched the surface.
What Was The Telescopic Legs Made Of?
- The telescopic legs were made of honeycomb material to collapse on landing, acting as shock absorbers partially.
What Were The Reasons ForLM’ss Bulges?
- The asymmetric bulges on either side of the cockpit – fuel and oxidizer have different densities. So the designers kept the LM in balance by putting the less dense mass further out from the center (like balancing a big kid and a small kid on a see-saw/teeter-totter).
What Was The Hatch Located?
- The hatch on the top – allows docking with the CSM.
- The hatch in the front – allows access to the lunar surface.
Why Did LM Had Triangular Windows?
- The triangular windows – to minimize the amount of heavy glass and maximize visibility for landing.
How Many Types of Antennas Does The Lunar Module’s Have?
The Lander had three different types of antenna: VHF (for communication), S-band steerable (to facilitate control of the Lander), and rendezvous radar (to facilitate rendezvous between the Lander and the Command Module).
Apollo 11 Crew Compartment
The crew compartment was a pressurized environment that supported two astronauts in about 6.65 square meters.
Lunar Module Ascent stage
The Lander’s ascent stage contained the crew cabin, navigation system, life support, thermal control system, and the capability to return itself to the Apollo Command Module in lunar orbit.
LM Descent stage
The descent stage contained the fuel to land on the moon, landing gear, a ladder to descend to the surface, and materials for experiments and sample collection on the moon.
What Is The Fuel For The Lunar Module?
The Lander was powered by a rocket fuel called Aerozine 50. It is still used in spacecraft and rockets because it is a highly stable fuel with a low freezing point.
Oxidizer
Aerozine 50 is used in conjunction with a chemical compound called dinitrogen tetroxide, an oxidizer. The Aerozine 50 ignites upon contact with it.
LM’s Landing gear
Initial designs had three legs, which could have resulted in a toppling Lander if one was damaged. Five legs were preferred, but they made the Lander too heavy. Four was an acceptable compromise.
Lunar Drone Lander Mac Os 11
That’s it, and I hope you enjoyed this essay. Check out this article that reveals the inside of the Apollo Saturn V rocket and its significant components. See for yourself these fantastic drawings. You will be amazed.
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When you start up the program you will see four distinct options:
“manual”, “autopilot”, “autopilot-nofuel”, and “autopilot-zero-learningrate”.
- Manual: In this mode, you have the option to try a manual landing the lunar lander.
- Autopilot: In this mode, the lunar lander learns from experience how to land the lunar lander
by simultaneously optimizing two criteria: (i) whether or not the lunar lander successfully lands and the magnitude of the velocity at crash,
and (ii) discover a method for landing the lunar lander so that the lander behavior is slow and smooth rather than fast and bumpy. - Autopilot-Nofuel: In this mode, the lunar lander is provided with no fuel. The purpose of this mode is to demonstrate that without fuel the downward accelerative force on the lunar lander ensures the lunar lander will consistently crash on the lunar surface.
- Autopilot-Zero-LearningRate: In this mode, the lunar lander thrusters are randomly controlled. The purpose of this mode is to show that with a
randomly chosen thruster control law the downward accelerative force on the lunar lander ensures the lunar lander will have difficulty landing safely on the moon.
Please sign up and join the Learning Machines 101 Community in order to obtain a password for access to free software and free supplemental technical notes!
The mathematical theory (which is relatively advanced) which explains why the lunar lander works is described in this paper which
was presented at the International Conference on Learning Representations Workshop in 2015. Click here to access the mathematical theory paper.
The Lunar Lander Technical notes provide an explicit mathematical description of the algorithms used for the Lunar Lander Software. These notes are currently a little incomplete and may need to be revised. They are an excerpt from a new book that I am currently writing but won’t be published for several years.
Download Lunar Lander Technical Memo Here!
This is Windows executable code. In order for this to execute you must have already installed the MATLAB Compiler Run-Time Library Installer for Windows Version 2011b. If you have already installed this library, then it is not necessary to re-install the library on your machine. This software is a compiled version of the MATLAB Source Code listed below.
Download Lunar Lander Executable Software Here!
The MATLAB Lunar Lander software requires that you have installed MATLAB on your computer which is a software development environment that can be purchased from: www.mathworks.com. If MATLAB is not installed on your machine, however, you might still want to download the MATLAB software since it provides a technical specification of the Linear Machine Windows and MAC OS-X Executable code as a collection of text files.