Original 3D-model: Jon Marcure.
Additional design: Jacob Larsen (2003).
|Development status: in service
Latest calibration: 100628 @ 09:01 CET
First commissioned: 030423 @ 03:45 CET
is a 'telemetry-transmitter-module'. Its fondly nicknamed 'homer' in daily use,
because pilots 'home in' on this module during approach procedures.
Dock homer to a radio-silent vessel (a vehicle
without transponder capability) to keep track of that vessel's location and to receive ILS
data when approaching it.
Homer was tested and
calibrated using channel 248 and 249 (120.40 MHz and 120.45 MHz respectfully), but isn't
limited to this channel-set.
The picture shows a
low-resolution computer rendered image of the Homer-V3.
record: "Orbiter-021202/3" through "Orbiter-100606"
Length: 6 meters.
Mass weight: 2,817 kg.
Rated thrust (prograde): 0 newton (0 AUN).
Rated thrust (retrograde): 0 newton (0 AUN).
Rated thrust (hover): 0 newton (0 AUN).
Rated thrust (attitude): 1000 newton.
Fuel specific impulse (Isp): 400 sec (4,000 m/s)
Fuel load: 1,000 kg.
Nominal PAX capacity: ~ 1 (for an estimated maximum duration of 12
Pilots Operating Manual:
list of 'proposed handling' for various scenarios:
As payload on launch vehicle
Not advised/no current proposed procedures
#1:Request docking clearance (not needed for module assembly
#2:Approach head-on and aim the HUD 'victor'-targetsights on center
of target dockring by linear-thruster movement.
Broadcast activation in
earlier versions of homer was activated manualy, but is now automated (provided homer's
onboard flight-computer is programmed before launch)
To program it; indclude this entry to the homer data-set:
Channel 248 yields a frequency of 120.40 MHz (for another frequency,
select another channel).
Homer should now start broadcasting the transponder signal
automaticaly when jettisoned from the spaceshuttle.
(See an example of what homer's data-set might look like with the
transponder channel programmed in the scenario.scn datafile: scenario-example )