Johnson Space Center Aircraft Operations Division Overview

Johnson Space Center's Aircraft Operations Division features the Gulfstream V aircraft with unique modifications like downward-facing portals, specialized windows, and mission-specific payload support areas. The aircraft is designed for high-altitude operations with a service ceiling of 51,000 feet and a maximum speed of Mach 0.885. It includes advanced features such as power and control racks, seating for up to 5 passengers, and the capability to accommodate various mission payloads.

• Johnson Space Center
• Aircraft Operations
• Gulfstream V
• High-altitude Operations
• Mission Payload

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1. Aircraft Operations Division Johnson Space Center N95NA Baseline Science Modifications 1

2. Aircraft Operations Division Johnson Space Center Gulfstream V Gulfstream V Serial 672, built in 2002 Service Ceiling: 51,000ft Max Gross Weight: 90,900lbs Max Mission Duration: 12hrs Max Cabin Payload: 8,100lbs Max Speed: Mach 0.885 Normal cruise range: >5,000nm 2

3. Aircraft Operations Division Johnson Space Center Portals Two downward-facing portals installed in forward cabin 24.07 24.20 3

4. Aircraft Operations Division Johnson Space Center Portals Two downward-facing portals installed in forward cabin 20.75 x 20.75 opening in each portal adapter Instruments installed either suspended from the floor above or bolted directly to the portal adapter 350lb can be mounted directly to each ring frame adapter JSC-designed window pack can also be mounted in the ring frame adapter Can accommodate up to a 17.4 DIA window Shutter will be available for debris impact protection 4

5. Aircraft Operations Division Johnson Space Center Windows Window Adapter Baseline Design 17.4 viewable window pack Single pane, ~1.5 thick Recessed for debris protection Design flexible to incorporate other windows, e.g. DC-8 windows Retainer Window Pack O-ring seal Aluminum Frame Glass Pane (various materials) Window Adapter Gasket seal Silicone Rubber Bumper Window Pack Expanded Section View Aircraft Frame Silicone Rubber Gasket X2 5

6. Aircraft Operations Division Johnson Space Center Cabin Layout Cabin Layout Power and Control Rack houses all network, computer equipment, and power equipment for payload support Mission Specific Payload Area Up to 8 equipment rack/seat locations in cabin Full restraint seats available to monitor equipment during takeoff and landing Standard number of passengers: 5 More possible if seats installed in payload area: mission dependent Mission-Specific Payload Area Power and Control Racks 6

7. Aircraft Operations Division Johnson Space Center RF/Data/Power Distribution Network/RF Connection Overlay 10GBASE-T over S/FTP Cat 6A OM1 and OM3 fiber rack-to-rack connectivity SF-142 coax to each rack position for GPS/RF signals Configurable via patch panel on control rack Two GPS antennas installed on aircraft dedicated for payloads Overhead conduit available between rack positions Overall max load: 40kVA 21 kVA, 115 VAC 60 Hz (single phase) 20 kVA, 115 VAC 400 Hz (both single and three-phase) 10kW, 28 VDC (regulated) NEMA, SAE AS6129, or NASA Mk I/III EIP power interfaces available 7

8. Aircraft Operations Division Johnson Space Center SATCOM Provisions Iridium 5 dual-element Iridium Antennas installed 5/10 elements used 1 ASP-Provided handset (voice + data) Iridium Extreme 9575 4-channel modem on NASDAT 9600bps max Bandpass Filtering on all Iridium connections Inmarsat High Gain Antenna capable of 432kbps Software upgradeable to 650 kbps HDR service 8

9. Aircraft Operations Division Johnson Space Center Equipment Racks Equipment Racks 22 W x 25 D x 51 H Biggest racks that can fit in GV while maintaining aisle width 25U available space (1U = 1.75 ) Maximum weight: 340lbs Empty weight: ~50lbs Maximum overturning moment: 6225 in-lbs 9

10. Aircraft Operations Division Johnson Space Center Equipment Racks Costs, Mission Science customers only charged variable cost per flight hour (gas, spares, engine maintenance) plus MPCs $3K per flight hour, FY19 MPCs include per diem, lodging, rental cars, air fare, FBO costs, fuel surcharges, mechanic overtime, and some management reserve Aircraft deploys with two pilots, two mechanics, and one FSO on most missions Would double crew to provide OIB-like missions capacity to fly multiple days in a row at maximum range/endurance 10

11. Aircraft Operations Division Johnson Space Center Equipment Racks Contact Information Program Manager Derek Rutovic, 832-205-3854 Project Engineers Charlie Marshik, 281-796-2473 Tyler Thompson, 832-692-6850 Project Pilots Bill Rieke, 281-799-5463 Ken Cook, 281-244-0971 11