XR Flight Operations Manual Version 3.0
Copyright 2006-2018 Douglas Beachy. All Rights Reserved.
69
Empty Mass
12,000 kg
16,080 kg
266,400 kg
Main Fuel Mass
10,400 kg
13,396 kg
230,880 kg
RCS Fuel Mass
600 kg
804 kg
13,320 kg
SCRAM Fuel Mass
2,500 kg
3,350 kg
55,500 kg
APU Fuel Mass
200 kg
268 kg
4,440 kg
LOX Mass
5
(see footnote)
65 kg (7 days)
to 3389 kg (5
years)
182 kg (7
days) to
47,438 kg (5
years)
234 kg (7 days)
to 60,991 kg (5
years)
Fully Loaded Mass w/14-day LOX and full
crew complement (no cargo)
26,254 kg
35,748 kg
572,225 kg
Length
17.76 meters
23.91 meters
60.34 meters
Wingspan
17.86 meters
18.95 meters
76.67 meters
Rear Gear Track
6.82 meters
7.48 meters
35.61 meters
Payload Bay Capacity
N/A
3 custom
payload slots
(approx. 30
cubic meters)
36 Standard
Cargo slots
(approx. 2,500
cubic meters)
Maximum Payload Mass
N/A
10,795 kg
(max
recommended)
432,000 kg
(max
recommended)
Main Engine Thrust in Vacuum
192 kN x 2
384 kN total
302 kN x 2
605 kN total
1,420 kN x 6
8,524 kN total
Hover Engine Thrust in Vacuum
88 kN x 3
264 kN total
208 kN x 2
415 kN total
977 kN x 6
5,860 kN total
Maximum SCRAM Engine Thrust
~160 kN x 2
~320 kN total
~350 kN x 2
~700 kN total
~5,250 kN x 2
~10,500 kN
total
Retro Engine Thrust in Vacuum
40.8 kN x 2
81.6 kN total
64.2 kN x 2
129 kN total
905 kN x 2
1,811 kN total
SCRAM Diffuser Thermal Limit
8000° Kelvin
8000° Kelvin
8000° Kelvin
APU Runtime (“low”
APUFuelBurnRate
default setting)
~110 minutes
~110 minutes
~110 minutes
APU Startup/Shutdown time
2.5 seconds
(nominal)
2.5 seconds
(nominal)
2.5 seconds
(nominal)
Principal Moments of Inertia (PMI)
15.5 / 22.1 /
7.77
32.04 / 42.56 /
13.17
317.35 / 305.08
/ 219.45
Cross Sections
55.13 / 190.53 /
26.41
77.46 / 238.98
/ 30.14
543.82 /
1962.75 /
330.97
Center of Mass (in meters)
0.0, -0.07,
-0.50
0.0, 0.41,
-2.05
0.0, 10.45,
-4.66
Crew Complement
5
14
18
Gear deployment time
6.7 seconds
6.7 seconds
6.7 seconds
Docking Port / Nosecone deployment time
20.0 seconds
20.0 seconds
20.0 seconds
Crew Elevator deployment time
N/A
N/A
35.0 seconds
Airlock doors opening time
10.0 seconds
10.0 seconds
10.0 seconds
5
The maximum LOX listed here assumes that
LOXConsumptionRate
in the config file
is set to its default of
AUTO
; the amount of LOX loaded will be higher if
LOXConsumptionRate
is changed. For example, if
LOXConsumptionRate
is set to
Realistic
, the actual LOX loaded for a five-year mission would be 16,942 kg (37,350
pounds).