THE DESCENT STAGE, J SERIES

Although the general shape of the descent stage remains identical the J version had significant differences in comparison to the G and H versions. The main modfications came from the fact the LM transported on Quad 1 the Lunar Roving Vehicle that allowed atsronauts to travel up to 30 km on the lunar surface. For that purpose Quad 3 carried many equipments for the LRV as well as Quad 4 with its extended stay MESA. More subtle modifications were also needed like relocated aft batteries to correct the centre of gravity, relocated helium tanks and consequently helium vents or extended descent engine bell to increase the engine specific impulse and the weight to carry to the Moon.

This section will allow you to built any LM you want between Apollo 15 and Apollo 17. If you follow the various steps you will be able to order all individual parts as requested by the LM you choose. However in order to make things easier and also cheaper I combined many parts into one product which will allow you to save money mainly on handling fees. The combined parts are offered in Strong White and Flexible (in this case ordering the combined product or each part individualy is about the same in terms of price) and in Frosted Ultra Detail plastic (combining the parts for FUD makes a great difference since the handling fees is $5 per product, so basiccaly if you combine 9 different articles into one you save $40).

The following table depicts the combined products you will need to buy depending on the mission you choose and its particular configuration. In the instruction sections further down you will be able to buy individual parts if needed.

Descent Stage with  Modularized Equipment Stowage Assembly (MESA) closed - Scale 1/32 - LM in flight or just after landing
apolloapollo     apollo     apollo   apollo
Descent Stage with  simple open MESA - Scale 1/32 - First steps on the Moon
apolloapollo     apollo     apollo   apollo
LRV deployment scenario 1 - Scale 1/32 - LRV undeployed but MESA thermal blankets removed 
apolloapollo  apollo  apollo  apollo  apollo
LRV deployment scenario 2a - Scale 1/32 - Fully folded LRV deployed at 45
apolloapollo  apollo  apollo  apollo  apollo
LRV deployment scenario 2b - Scale 1/32 - Half folded LRV deployed at 45
apolloapollo  apollo  apollo  APOLLO  APOLLO
LRV deployment scenario 3 - Scale 1/32 - Half folded LRV deployed at 90
apolloapollo  apollo  apollo  APOLLO  APOLLO
LRV deployment scenario 4 - Scale 1/32 - Half folded LRV with back wheels on the ground
apolloapollo  apollo  apollo  APOLLO  APOLLO
LRV deployment scenario 5 - Scale 1/32 - Unfolded LRV with back wheels on the ground
apolloapollo  apollo  apollo  apollo  APOLLO
LRV deployment scenario 6 - Scale 1/32 - Unfolded LRV, half way to complete deployment
apolloapollo  apollo  apollo  apollo  APOLLO
LRV deployment scenario 7 - Scale 1/32 - Fully deployed and released LRV
For this scenario the LRV is proposed separately as it can be just deployed, just running or fully equipped, the White Strong and Flexible article does not contain the LRV batteries
apolloapollo     apollo     apollo

The LRV has been just deployed as in scenario 7 above
as the LRV is separate from the descent stage the LRV batteries that were provided for scenarii 1 to 6 need to be purchased here
apolloapollo    apollo     APOLLO
The LRV is operational but not equiped yet
Depending on the configuration you want you need to choose between parts for turning left, going straight ou turning right
apolloapollo  APOLLO  apollo or apollo or apollo
The Apollo 15 LRV is fully operational and equiped
Depending on the configuration you want you need to choose between parts for turning left, going straight ou turning right
apolloapollo  APOLLO  APOLLO or apollo or apollo
The Apollo 16 LRV is fully operational and equiped
Depending on the configuration you want you need to choose between parts for turning left, going straight ou turning right
apolloapollo  APOLLO  apollo or apollo or apollo
The Apollo 17 LRV is fully operational and equiped
Depending on the configuration you want you need to choose between parts for turning left, going straight ou turning right
apolloapollo  APOLLO  apollo or apollo or apollo
Scale 1/24                  Scale 1/24                    Scale 1/24         or          Scale 1/24          or         Scale 1/24



 Step 1 : The Descent Stage Body - 1

Alternate step 1 : The Descent Stage Body - 1 - without scratchbuilding

 Step 2 : The Descent Stage Body - 2

 Step 3 : Descent Stage Coating
 Step 4 : Descent Engine, Propellant Drains, Helium Vents, Landing Gear Uplock
 Step 5 : Landing Gears
 Step 6 : Quad 1
 Step 7 : Quad 2
 Step 8 : Quad 3
 Step 9 : Quad 4
 Step 10 : Egress platform and plume deflectors
 Step 11 : The Lunar Rover
 Step 12 : Fixing the LRV onto the descent stage


Step 1 : The Descent Stage body - 1

Material :

3D printed parts
from Shapeways



Scale 1/32

http://shpws.me/wf2K

http://shpws.me/sW3p

Scale 1/24

http://shpws.me/wf38

http://shpws.me/t9fg

J001.jpg

J002.jpg

J003.jpg

J004.jpg

J005.jpg

J006.jpg


Alternate Step 1 : The Descent Stage body - 1

Material :

3D printed parts
from Shapeways



Scale 1/32

http://shpws.me/wf2K

http://shpws.me/wfIm

Scale 1/24

http://shpws.me/wf38

http://shpws.me/wfII

J001A.jpg

J006A.jpg


Step 2 : The Descent Stage body - 2

Material :

3D printed parts
from Shapeways



Scale 1/32

http://shpws.me/qWcP

http://shpws.me/vLal

http://shpws.me/vski

http://shpws.me/vIyj

http://shpws.me/vL6E

Scale 1/24

http://shpws.me/qWcN

http://shpws.me/vLaF

http://shpws.me/vzIY

http://shpws.me/vIzD

http://shpws.me/vL6I

J007.jpg

J008.jpg

J009.jpg

J010.jpg


Step 3 : Descent Stage Coating

Material :

028.jpg

029.jpg

030.jpg


Step 4 : Descent engine, propellant drains, helium vents, landing gear uplock

Material :

3D printed parts
from Shapeways



Scale 1/32

http://shpws.me/vL8Y

http://shpws.me/rYNw

Scale 1/24

http://shpws.me/vL99

http://shpws.me/sbie

J011.jpg

J012.jpg


Step 5 : Landing gears

Material :

3D printed parts
from Shapeways



Scale 1/32

http://shpws.me/qZct

http://shpws.me/qZGr

http://shpws.me/wgXS

http://shpws.me/r0i9

Scale 1/24

http://shpws.me/r0pw

http://shpws.me/r0pu

http://shpws.me/wgXZ

http://shpws.me/r1WG

041A.jpg

042A.jpg

048A.jpg

049A.jpg

J013.jpg

J014.jpg

J015.jpg

J016.jpg


Step 6 : Quad 1

Material :

3D printed parts
from Shapeways


Scale 1/32

http://shpws.me/whsL

Scale 1/24

http://shpws.me/whuX

J017.jpg

J018.jpg

J019.jpg

J020.jpg

J021.jpg


Step 7 : Quad 2

Material :

3D printed parts
from Shapeways



only for Apollo 16 

Scale 1/32

http://shpws.me/uxTk

http://shpws.me/vIhy

http://shpws.me/r5zc

Scale 1/24

http://shpws.me/uxTn

http://shpws.me/vIfZ

http://shpws.me/r5zV

J022.jpg

J023.jpg

J024.jpg

J025.jpg

J026.jpg

J027.jpg

J028.jpg


Step 8 : Quad 3

Material :

Quad 3 supported two pallets, the left one that was removed and placed onto the aft platform of the lunar rover and the right one contained instruments for the LRV. This last pallet was also removed and left on the lunar surface on Apollo 15 and 17 but was kept attached to Quad 3 on Apollo 16. Depending on the scenario you want to depict the shapeways parts will be different. The following table gives you an overview of the various scenarios.

Scenario

Instructions

Shapeways parts

Apollo 15

Apollo 16

Apollo 17

Scenario 1 : Both pallets are still completely covered with thermal coating

No need for further parts

Scenario 2 : The thermal coating is removed and both pallets are visible

 
Scale 1/32                   Scale 1/32
Scale 1/24                   Scale 1/24

 
Scale 1/32                   Scale 1/32
Scale 1/24                   Scale 1/24

Scenario 3 : The thermal coating is removed as well as the LRV pallets


Scale 1/32
Scale 1/24


Scale 1/32
Scale 1/24

Scenario 4 : The LRV pallet and the intruments are both removed


Scale 1/32
Scale 1/24


Scale 1/32
Scale 1/24

 
Scale 1/32                     Scale 1/32
Scale 1/24       OR         Scale 1/24


Step 9 : Quad 4

Material :

Quad 4 supported the Extended Stay Modularized Equipment Stowage Assembly (MESA). Three scenarios are proposed, the closed MESA, the open MESA with the thermal coating still in place (during the first step on the Moon) and the open MESA with the possibility to show details.
 

Scenario

Instructions

Shapeways parts

Scenario 1 : The MESA is closed


Scale 1/32
Scale 1/24 

Scenario 2 : The MESA is open but the thermal coating is still in place


Scale 1/32
Scale 1/24

Scenario 3 : The MESA is open and the thermal coating is open to show details

  
Scale 1/32                      Scale 1/32
Scale 1/24                      Scale 1/24

The following pictures show the construction of the extended stay MESA. Please note the difference between Apollo 15 & 16 and Apollo17. During Apollo 17 there was no TV transmission prior to fully deploying the Rover which means there was no support in the MESA for the TV camera to film the astronauts descending the ladder. For the same reason there was no tripod for the TV camera.

Actually the camera was used from the MESA only during Apollo 15. During Apollo 16 there was a malfunction of the S band high gain antenna drive preventing to transmit TV pictures. The astronauts used the omnidirectionnal S band antennas which were only good for voice and telemetry data.

Note that the assembly below proposes to have a complete MESA either for Apollo 15 & 16 or Apollo 17. Depending which part of the mission you want to depict some elements can be removed from the MESA e.g. Sample container that can be put on the table or LCRU and EVA pallets that found their ways onto the rover.

JMESA01.jpg

JMESA02.jpg

JMESA03.jpg

JMESA04.jpg

JMESA05.jpg

JMESA06.jpg

JMESA07.jpg

JMESA08.jpg

JMESA09.jpg

JMESA10.jpg

JMESA11.jpg

JMESA12.jpg

JMESA13.jpg

JMESA14.jpg

 

JMESA15.jpg

JMESA16.jpg

JMESA17.jpg

JMESA18.jpg

JMESA19.jpg


Step 10 : Egress platform and Plume deflectors

Material

3D printed parts
from Shapeways



Scale 1/32

http://shpws.me/wpD7

http://shpws.me/vMen

http://shpws.me/vMcQ

http://shpws.me/vMey

Scale 1/24

http://shpws.me/wpDc

http://shpws.me/vMeo

http://shpws.me/vMcS

http://shpws.me/vMeF

J042.jpg

J043a.jpg

J043b.jpg

J043c.jpg

J044.jpg

J045.jpg


Step 11 : The Lunar Rover

The J mission lunar modules carried on Quad 1 the Lunar Roving Vehicle (LRV), a small electric car that allowed a giant leap in lunar exploration. From the few 100 meters explored around the lunar module during the Apollo 11, 12 and 14 missions the astronaut of the J missions drove more than 30 km on the surface of the Moon. The LRV is proposed in various configurations either during the deployment sequence or a fully roving vehicle before the assembly of the various elements such as the high gain antenna, the LRV pallet or the TV camera. The first table below shows the construction of the LRV for the various configurations while the next table shows the 10 possible scenarios that can be modeled.

 

LRV configuration
click on the image for instructions 

Shapeways parts

LRV
Fully folded LRV for
Scenarii 1 & 2 


Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24


Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

LRV
Half deployed LRV for
Scenarii 2, 3 & 4 

           
Scale 1/32                       Scale 1/32                       Scale 1/32                       Scale 1/32
Scale 1/24                       Scale 1/24                       Scale 1/24                       Scale 1/24

           
Scale 1/32                       Scale 1/32                       Scale 1/32                       Scale 1/32
Scale 1/24                       Scale 1/24                       Scale 1/24                       Scale 1/24

           
Scale 1/32                       Scale 1/32                       Scale 1/32                       Scale 1/32
Scale 1/24                       Scale 1/24                       Scale 1/24                       Scale 1/24

 LRV
Fully deployed LRV for
Scenarii 5, 6 & 7 

             
Scale 1/32                       Scale 1/32                       Scale 1/32                       Scale 1/32
Scale 1/24                       Scale 1/24                       Scale 1/24                       Scale 1/24

           
Scale 1/32                       Scale 1/32                       Scale 1/32                       Scale 1/32
Scale 1/24                       Scale 1/24                       Scale 1/24                       Scale 1/24

           
Scale 1/32                       Scale 1/32                       Scale 1/32                       Scale 1/32
Scale 1/24                       Scale 1/24                       Scale 1/24                       Scale 1/24

 LRV
Operating LRV for
Scenario 7 

 


Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

 
Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

         
Scale 1/32         or         Scale 1/32                               Scale 1/32       or        Scale  1/32
Scale 1/24         or         Scale 1/24                               Scale 1/24       or        Scale  1/24

         
Scale 1/32          or           Scale 1/32           or          Scale 1/32
Scale 1/24          or           Scale 1/24           or          Scale 1/24

         
Scale 1/32          or           Scale 1/32           or          Scale 1/32
Scale 1/24          or           Scale 1/24           or          Scale 1/24

LRV5.jpg
Fully operating LRV for
Scenario 7 


Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

 
Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

         
Scale 1/32         or         Scale 1/32                               Scale 1/32       or        Scale  1/32
Scale 1/24         or         Scale 1/24                               Scale 1/24       or        Scale  1/24

         
Scale 1/32          or           Scale 1/32           or          Scale 1/32
Scale 1/24          or           Scale 1/24           or          Scale 1/24

         
Scale 1/32          or           Scale 1/32           or          Scale 1/32
Scale 1/24          or           Scale 1/24           or          Scale 1/24

LGA mast LGA 16 mm camera Pallet A15 & A6 Tools
Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

Sample bags          A17 pallet     A17 pallet gravimeter
Scale 1/32
                              Scale 1/32          or          Scale 1/32          &          Scale  1/32
Scale 1/24                               Scale 1/24          or          Scale 1/24          &          Scale  1/24

A17 tools Sample bags LCRU TCU TCU
Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32                    Scale 1/32
Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24                    Scale 1/24

TV camera             TV camera
Scale 1/32               or             Scale 1/32
Scale 1/24               or             Scale 1/24

Mast        Parabola        pattern        feeder
Scale 1/32                           Scale 1/32                           Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24                           Scale 1/24                           Scale 1/24

Pointint up        pointing A15        pointing A16        pointing A17
Scale 1/32            or            Scale 1/32            or            Scale 1/32            or            Scale 1/32
Scale 1/24            or            Scale 1/24            or            Scale 1/24            or            Scale 1/24


Step 12 : Fixing the LRV onto the descent stage

Following construction of the lunar rover several scenarios are possible either with the LRV being deployed or the operating LRV. You will need first to build the LRV and then to finish assembling parts in Quad 1 as shown below.
 

LRV configuration
click on the image for instructions 

Shapeways parts


Scenario 1 : Fully folded LRV undeployed 

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24

                    
Scenario 2a                                                   Scenario 2b
Fully folded LRV deployed at 45               Half folded LRV deployed at 45

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24


 Scenario 3 : Half folded LRV, central and aft platforms deployed at 90,
forward platform deployed at 45 

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24


Scenario 4 : Half folded LRV, back wheels on the ground,
forward platform deployed at 45 

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24


Scenario 5 : Deployed LRV, back wheels on the ground,
inclination similar to Scenario 4 

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24


Scenario 6 : Deployed LRV, half way to complete deployment 

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24


Scenario 7 : Released LRV

         
Scale 1/32                           Scale 1/32
Scale 1/24                           Scale 1/24