Military Spaceplane Specifications
MAXIMUM PERFORMANCE MISSION SETS
Maximum Performance Missions Sets are system defining and encompass the four missions and the Design Reference Missions. Instead of giving a threshold and objective for each mission requirement, missions sets are defined. Each mission set will define a point solution and provide visibility into the sensitivities of the requirements from the thresholds (Mark I) to the objective (Mark IV). If takeoff and landing bases are constrained to the U.S. (including Alaska and Hawaii), this will reduce stated pop-up payloads by at least half.
Mark I (Demonstrator or ACTD non-orbital vehicle that can only pop up)
- Pop-up profile: Approximately Mach 16 at 300 kft at payload separation
- Pop up and deliver 1 to 3 klbs of mission assets (does not include boost stage, aeroshell, guidance or propellant) to any terrestrial destination
- Pop up and deliver 3 to 5 klbs of orbital assets (does not include upperstage) due east to a 100 x 100 NM orbit
- Payload bay size 10' x 5' x 5', weight capacity 10 klbs
Mark II (Orbit capable vehicle)
- Pop up and deliver 7 to 9 klbs of mission assets (does not include boost stage, aeroshell, guidance or propellant) to any terrestrial destination
- Pop up and deliver 15 klbs of orbital assets (does not include upperstage) due east to a 100 x 100 NM orbit
- Launch due east, carrying 4-klb payload, orbit at 100 x 100 NM
- Payload bay size 25' x 12' x 12', weight capacity 20 klbs
Mark III
- Pop up and deliver 14 to 18 klbs of mission assets (does not include boost stage, aeroshell, guidance or propellant) to any terrestrial destination
- Pop up and deliver 25 klbs of orbital assets (does not include upperstage) due east to a 100 x 100 NM orbit
- Launch due east, carrying a 6-klb payload, orbit at 100 x 100 NM and return to base
- Launch polar, carrying 1-klb payload and return to base
- Payload bay size 25' x 12' x 12', weight capacity 40 klbs
Mark IV
- Pop up and deliver 20 to 30 klbs of mission assets (does not include boost stage, aeroshell, guidance or propellant) to any terrestrial destination
- Pop up and deliver 45 klbs of orbital assets (does not include upperstage) due east to a 100 x 100 NM orbit
- Launch due east, carrying a 20-klb payload, orbit at 100 x 100 NM and return to base
- Launch polar, carrying 5-klb payload and return to base
- Payload bay size 45' x 15' x 15', weight capacity 60 klbs
REFERENCE MISSIONS TO MISSION SETS MATRIX
Ref Mission Mark I Mark II Mark III Mark IV
Payload Bay Data 10' x 5' x 25' x 12' x 25' x 12' x 45' x 15' x
5' 12' 12' 15'
10 klbs 20 klbs 40 klbs 60 klbs
DRM 1 (Pop up and 1-3 klb 7 to 9 klb 14 to 18 klb 20 to 30 klb
deliver mission
assets)
DRM 2 (Pop up and 3-5 klb 15 klb 25 klb 45 klb
deliver orbit assets
due east 100 x 100 NM)
DRM 3 (Co-Orbit) N/A 4 klb due 6 klb due east 20 klb due
east 100 x 100 x 100 NM east 100 x 100
100 NM NM
DRM 4 (Recover) N/A TBD TBD TBD
DRM 5 (Polar Once N/A N/A 1 klb 5 klb
Around)
NOTES:
Mission asset weight is a core weight and does not include a boost stage, aeroshell, guidance or propellant.
Orbital asset weight does not include an upperstage.
Requirements Matrix for Mark II, III and IV
(Desired for Mark I)
Requirement Threshold Objective
Sortie Utilization Rates
Peacetime sustained 0.10 sortie/day 0.20 sortie/day
War/exercise sustained (30 days) 0.33 sortie/day 0.50 sortie/day
War/exercise surge (7 days) 0.50 sortie/day 1.00 sortie/day
Turn Times
Emergency war or peace 8 hours 2 hours
MOB peacetime sustained 2 days 1 day
MOB war/exercise sustained (30 days) 18 hours 12 hours
MOB war/exercise surge (7 days) 12 hours 8 hours
DOL peacetime sustained 3 days 1 day
DOL war/exercise sustained (30 days) 24 hours 12 hours
DOL war/exercise surge (7 days) 18 hours 8 hours
System Availability
Mission capable rate 80 percent 95 percent
Flight and Ground Environments
Visibility 0 ft 0 ft
Ceiling 0 ft 0 ft
Crosswind component 25 knots 35 knots
Total wind 40 knots 50 knots
Icing light rime icing moderate rime icing
Absolute humidity 30 gms/m3 45 gms/m3
Upper level winds 95th percentile all shear conditions
shear
Outside temperature -20 to 100F -45 to 120F
Precipitation light moderate
Space Environment
Radiation level TBD TBD
Flight Safety
Risk to friendly population < 1 x 10-6 < 1 x 10-7
Flight Segment loss < 1 loss /2000 < 1 loss/5000 sorties
sorties
Reliability 0.9995 0.9998
Cross Range
Unrestricted pop-up cross range 600 NM 1200 NM
CONUS pop-up cross range 400 NM 600 NM
Orbital cross range 1200 NM 2400 NM
"Pop-up" Range
CONUS pop-up range 1600 NM 1200 NM
Ferry range minimum 2000 NM worldwide
On-orbit Maneuver
Excess V (at expense of payload) 300 fps 600 fps
Pointing accuracy 15 milliradians 10 milliradians
Mission Duration
On-orbit time 24 hours 72 hours
Emergency extension on-orbit 12 hours 24 hours
Orbital Impact
Survival impact object size 0.1-cm diameter 1-cm diameter
Survival impact object mass TBD TBD
Survival impact velocity TBD TBD
Alert Hold
Hold Mission Capable 15 days 30 days
Mission Capable to Alert 2-hour 4 hours 2 hours
Status
Hold Alert 2-hour Status 3 days 7 days
Alert 2-hour to Alert 15-minute 1 hour 45 minutes 30 minutes
Status
Hold Alert 15-minute Status 12 hours 24 hours
Alert 15 Minute to Launch 15 minutes 5 minutes
Design Life
Primary Structure 250 sorties 500 sorties
Time between major overhauls 100 sorties 250 sorties
Engine life 100 sorties 250 sorties
Time between engine overhauls 50 sorties 100 sorties
Subsystem life 100 sorties 250 sorties
Take-off and Landing
Runway size 10,000 ft x 150 ft 8000 ft x 150 ft
Runway load bearing S65 S45
Vertical landing accuracy 50 ft 25 ft
Payload Container
Container change-out 1 hour 30 minutes
Crew Station Environment (if rqd)
Life support duration 24 hours 72 hours
Emergency extension on-orbit 12 hours 24 hours
Crew Escape (if rqd)
Escape capability subsonic full envelope
Maintenance and Support
Maintenance work hours/sortie 100 hours 50 hours
R&R engine 8 hours 4 hours
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