SpaceCub Mass and Components Breakdown

All masses in Kilograms

System Subsystem Component Quantity Mass ea. Total Mass
Airframe
Fuselage Body
Ring Frames 20 5 100
Stringers 10 7 70
Access Panels 8 0.5 4
Climbing Steps 8 0.25 2
Spring Step Covers 8 0.25 2
Retractable Step 1 1 1
Skin 1 253 253
Stringer Brackets 200 0.003 0.6
Rivits 4400 1E-04 0.484
Wings
Spar 1 100 100
Aux. Spar 1 100 100
Ribs 20 1 20
Spoilers 4 14 56
Spoiler Hinges 4 2.6 10.4
Spoiler Actuators 4 1 4
Return Springs 12 0.1 1.2
Landing Struts 2 10 20
Leading Edges 2 3 6
Skin 1 205 205
Rivits 1500 1E-04 0.165
Vertical Stabilizer
Spars 5 2 10
Ribs 8 1.2 9.6
Spoilers 4 7 28
Spoiler Hinges 4 1.3 5.2
Spoiler Actuators 4 1 4
Return Springs 12 0.1 1.2
Landing Struts 2 10 20
Leading Edges 2 1.5 3
Skin 1 40 40
Rivits 800 1E-04 0.088
Canard
Spar 2 10 20
Ribs 8 0.75 6
Leading Edges 2 1 2
Mounting Swivel 2 2 4
Mounting Plate 2 5 10
Canard Actuators 4 1 4
Skin 1 58 58
Rivits 600 1E-04 0.066
Propellant System
O2 Tank
Pressure Shell 1 65 65
Anti-slosh baffles 4 0.5 2
Anti-Vortexing Baffle 1 0.25 0.25
Surface Tension PMD 1 2 2
Fill Line 1 3 3
Fill Check Valve 1 1 1
Relief Valve 1 1 1
Feed Line 1 10 10
Purge Drain Line 1 2 2
Drain Valve 1 1 1
Level Sensor 1 2 2
Mounting Brackets 60 0.03 1.8
End Cap Hardpoints 8 2 16
Kerosene Tank
Pressure Shell 2 50 100
Anti-slosh Baffles 10 0.3 3
Anti-vortexing Baffles 2 0.25 0.5
Surface Tension PMD 2 2 4
Fill Line 1 5 5
Fill Check Valve 2 1 2
Relief Valve 2 1 2
Feed Line 2 6 12
Purge Drain Line 2 2 4
Level Sensor 2 2 4
Mounting Brackets 150 0.03 4.5
End Cap Hardpoints 16 2 32
Landing O2 Tank
Outer Shell 2 4 8
Anti-Vortexing Baffle 2 0.125 0.25
Surface Tension PMD 2 1 2
Fill Line 2 3 6
Fill Check Valve 2 1 2
Relief Valve 2 1 2
Feed Line 2 6 12
Purge Drain Line 2 2 4
Drain Valve 2 1 2
Level Sensor 2 2 4
Mounting Brackets 150 0.03 4.5
Landing Kerosene Tank
Outer Shell 2 3 6
Anti-Vortexing Baffle 2 0.125 0.25
Surface Tension PMD 2 2 4
Fill Line 2 2 4
Fill Check Valve 2 1 2
Pressure Relief Valve 2 1 2
Feed Line 2 2 4
Feed Valve 2 1 2
Purge Drain Line 2 1 2
Purge Valve 2 1 2
Level Sensor 2 1 2
Mounting Brackets 40 0.03 1.2
Accomodation
Cockpit
Pressure Shell 1 100 100
Windshield 1 20 20
Canopy 2 15 30
Canopy Frame 2 6 12
Canopy Hinge 2 4 8
Canopy latch 4 2 8
Canopy Gasket 2 2 4
Air Supply
Compressed Air Tank 2 5 10
Tank Pressure Guages 2 2 4
Flow Regulator 2 2 4
Cockpit Pressure Guage 1 1 1
Seating
Couches 4 10 40
Controls and Instruments
Computer Motherboards 3 3 9
GPS Receiver 2 2 4
Inertial Platform 2 5 10
LCD Displays & Controls 3 2 6
Q Ball 1 5 5
Guages and Instruments 1 20 20
Switches, etc. 1 5 5
Radios 2 2.5 5
Electrical
Batteries 1 110 110
Wiring Harness 1 10 10
Power Conditioning 1 5 5
Main Propulsion
Rocket Motors 4 71 284
Jetavators
Jetavator Rings 4 5 20
Mounting Brackets 4 20 80
Actuators 8 5 40
Box Truss
Struts 99 0.5 49.5
Joint Plates 52 0.25 13
Reaction Control System
Motors
Thrust Chambers 24 0.5 12
Solenoid Valves 48 0.25 12
Mounting Brackets 24 0.25 6
Propellant Feed
Main Pressure Regulators 2 1 2
Low Pressure Tanks 4 2 8
Helium Distribution Lines 8 1 8
Feed Lines 48 0.125 6
High Pressure Tanks 2 10 20
=========
Subtotal 2454
Mass growth allowance 366
=========
Empty Weight 2820
Payload 500
Landing Fuel 700
=========
Reentry Weight 4020
Takeoff Fuel 14070
=========
Takeoff Weight 18090



Return to SpaceCub Homepage

Return to David L. Burkhead's home page

Comments or questions? dburkhead@sff.net
Last update 12-3-96