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Modoolar LL-module#1
Modoolar_LL-module1.jpg (3937 bytes)
Modoolar LL-module#1
(JELAIR Photo)

Visual design:
Original 3D-model: Jon Marcure.
Additional design: Jacob Larsen (2003).


Development status: in service

Date/Time-format: (YYMMDD@HHMM)

Latest calibration: 040125 @ 14:46 CET

First commissioned: 030222 @ 12:32 CET



The LL-module#1 is a 'Lunar Lander-module' similar in construction to the 'Modoolar hab-module#2'. The main difference is that the LL is capable of landing on the lunar surface by its own power (landing is not to be attempted elsewhere).

It is basically a container that can be equipped with anything from living-quarters, to full-fledged research-labs, or just stuffed with cargo destined for the lunar surface. Depending upon its internal configuration set-up, it can house up to approximately 5 people. It is not meant to serve as a hab-module however, since a lot of the interior space is used by engines and fuel-cells, but merely as a transport container between the lunar surface and an orbiting vehicle.

The LL has the same attitude thrust performance as the hab-module#2, but has in addition 4 hover-thrusters located within its 2 ground-resting surfacecontact-rings (the 2 blue bodies seen in the lower part of the picture). The LL-module is simply parked on these rings directly on the lunar surface.

The LL has enough fuel onboard to make it capable of 1 lunar return trip.

It is revolutionary in the way it is operated, since it is to be somewhat regarded as a rather large MMU. Normal procedures will have 1 astronaut on EVA (wearing a special enhanced MMU) docking to the LL and landing it from this 'outside' position. In other words, the LL is to be 'carried' by the astronaut as a rather large 'backpack'.
The astronaut controls LL via 2 small finger-joysticks located on his special MMU (1 controls attitude and 1 controls thrust (up/down) + program selection (left/right)). There are also 2 small MFDs for the astronaut to keep track of positional data and various flight data (descend speeds, altitude and so on).

The LL-module supports continued module extension in 2 space-directions.

The picture shows the LL-module#1 parked on a test-pad at KSC.


Main safety certification: "Orbiter-060929"
Safety certification record: "Orbiter-021202/3" through "Orbiter-060929"
Compatible with: "ShuttleFleetV3.9.4" (scenario example)
Length: 16 meters.
Mass weight: 6,255 kg.
Rated thrust (prograde): 0 newton (0 AUN).
Rated thrust (retrograde): 0 newton (0 AUN).
Rated thrust (hover): 30,000 newton.
Rated thrust (attitude): 2000 newton.
Fuel specific impulse (Isp): 4,000 m/s.
Fuel load: 20,000 kg.
Nominal PAX capacity: ~ 5 (Depending upon configuration)


Pilots Operating Manual:

Major warnings:



Hover thrust is not strong enough to lift the module off the lunar surface if fully fueled up.

Fuel use (nominal):
~80 % used for landing
~20 % used for T/O.

Current list of 'proposed handling' for various scenarios:

As payload on launch vehicle

Earth Moon
#1:Engage levelhold autopilot
#2:Engage full hoverthrust
#3:Disable levelhold autopilot at safe altitude (~1 kilometer)
#4:Gently pitch down/forward to pick up orbital velocity, while maintaining steady climb to orbital altitude
#5:cut hoverthrust when desired orbit has been achieved

Not advised/no current proposed procedures

Earth Moon
#1:Turn autopilot "+normal" ("-normal" (antinormal) can also be used if preferred (if lighting conditions are more favorable/comfortable when at this attitude, for instance)) and wait for the autopilot to stabilize
#2:Engage full hoverthrust
#3:Disable autopilot
#4:Roll gently to a 'heads-up' attitude, as required, to maintain a descend speed of no greater than ~100m/s (do not change pitch or yaw)
#5:When close to the surface (~1000 meters), engage altitude-hold autopilot and turn prograde (not by autopilot, but manually) and engage level-hold autopilot (you should be in a heads-up attitude facing the direction of motion)
#6:Maintain low forward velocity untill within range of desired landing-spot (if required: pitch down/forward to maintain forward velocity, but do not disengage level-hold autopilot)
#7:Pitch up/backwards to dissipate speed and disengage altitude-hold autopilot (do not disengage level-hold autopilot)
#8:Gently touch down at desired landing location manually and cut hoverthrust

#1:Request docking clearance (not needed for module assembly dockings)
#2:Approach head-on and aim the HUD 'victor'-targetsights on center of target dockring by linear-thruster movement.






User reports:
Read how it actualy performs in daily operation as seen from the operating-crew's viewpoint.