Copyright (c) 1995 by Onno Meyer GURPS and GURPS Vehicles are trademarks of Steve Jackson Games Inc. This posting is not connected to SJG, and the vehicle below is copyrighted by the author. All non-commercial electronic distribution is allowed (this includes FTP files and WWW sites). For back issues, contact me or try the web site http://www.nd.edu/~dfrohlic/GURPS/Vehicles/ Onno Meyer, 7/1995 Orbital Transfer Vehicle v1.0 (TL 08) Orbital Transfer Vehicles (or OTVs) operate in the earth/moon system, carrying loads from transfer stations in LEO (low earth orbit) to stations in GEO (geostationary earth orbit) or at the Lagrange points. This OTV has a delta-V of 9.8 km/s with a 30-ton load - enough to reach GEO and get back with the same payload. It could even go to mars, but not with a living crew. The endurance is limited by the power system (25 days in this configuration) and the food. Sensors are two radars (nominal range 20 miles) and a LLTV. The OTV uses TL08 technology [Dec. 93 errata sheet] with the chemical rocket from Robots. I realize the drives break the laws of current science, but this is SF :-) Structure: 8,000 cf expensive XL body (HT 1,250), max. load N/A, sealed. Propulsion: Two 5t chemical rockets (DR 5, HT 15 each) with 20,000 gallons rocket fuel (DR 5, HT 1,500, fire on 11) for 2h. Power: 120 KW fuel cell (DR 5, HT 20) with 1,080 gallons hydrox (DR 5, HT 200, fire on 11) for 25d. Excess power 65 KW. Accomodations: Four standard quarters, no windows. Crew Requirements: Pilot or computer control. Armor: 100 points advanced armor, F6/50 B4/10 R4/10 L4/10 T4/10 U4/10. Cargo: 3,000 cf cargo hold and 16.2 cf waste space. Accessories: Compact fire extinguisher, 5-person full lifesystem, radar locator, radiation shielding, two short-range radars with rangefinder (scan 20, DR 3, HT 4, electronics), LLTV (+4), airlock, three optical minicomps (C3, DR 3, HT 4, electronics), two INS (DR 3, HT 6, electronics), GPS, two tactical radios, two commercial transponders, two spotlights (DR 5, HT 2, exposed equipment), laser communicator. Programs: Database (3.1 GB flight lanes), datalink, sensor operation (skill 13 or +2), routine vehicle operation (skill 12). Statistics: Cost $900,000, design mass 70 tons, max. payload N/A, current load 30 tons, loaded mass 100 tons, size modifier +6, radar signature +6, IR signature +14 (+6 if coasting), acoustic signature N/A. Ground, Water and Air Performance: None. Space Performance: Acceleration between 0.1 and 0.2 G, delta-V 9.8 km/s.