FFS designs
TL12 Spinal Mounts Corrected
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Date: Sun, 25 Jun 1995 20:35:58 -0500 From: bonnevil@flipper.itlabs.umn.edu (Steven Bonneville) Subject: TL12 Spinal Mounts Corrected Mea culpa. I hate to admit it, but I rushed those two spinal mount designs so fast that I made a couple of hideous errors (with HPGs, among others) that I carried over into both designs and that ended up making them quite a mess. I've just finished fixing the stupid mistakes and this time I'll send my calculations, too, so people can check up on them if they want. The mount sizes are now a much more reasonable 4500 d-tons or so. The laser gains some ground back on the PAWS, but the PAWS may still have some points in its' favor. If I finally did everything right, the PAWS here is equivalent in size to the old CT/MT tech-12 PAWS-Q spinal mount. My previous tech-15 design would be roughly equivalent to the PAWS-T mount in size. Specs are the same: deliver 250 gigajoules to one light-second. Power consumption is at normal fire rates; the weapons aren't even beefed up, but the PAWS probably should be since it's very cheap to do so, and doesn't affect size much at all. TL12 250-GJ PAWS Spinal Mount ----------------------------- Length: 500 meters Volume: 62650 kL Mass: 125110 metric tons Power: 6944 MW Crew: 1 Price: MCr 639 Surface Area: 0.533 sq. meters 10:2500 20:625 40:156 80:39 TL12 250-GJ Laser Lance, 3.5 m lens dia. ---------------------------------------- Volume: 64873 kL Mass: 127366 metric tons Power: 6944 MW Crew: 1 Price: MCr 862 Surface Area: 9.6 sq. meters 10:1/400-1250 20:1/100-312 40:1/25-78 80:1/6-19 =============================================================== PAWS DESIGN BREAKDOWN: Effective FA at 500m length, 1 light-sec range: 0.8 sq. meters. Real FA: 0.267 sq. meters Tunnel: 133 kL; 100 tons; MCr 13.3 1.250 TJ HPGs: 62500 kL; 125000 tons; MCr 625. 300Mm Beam Ptr: 10 kL; 10 tons; MCr 1. Workstation: 7 kL; 0.2 tons; MCr 0.0015 Note that I consider that the "Effective Length" calculation only affects range, not maximum power -- in FF&S, DE is found before effective length is calculated. LASER DESIGN BREAKDOWN: For 1 light-sec range with tunable array, need 3.46 m dia. Lens would have a surface area of 9.42 sq. meters. Fixed Hvy FA: 2356 kL; 2356 tons; MCr 236. 1.250 TJ HPGs: 62500 kL; 125000 tons; MCr 625. 300Mm Beam Ptr: 10 kL; 10 tons; MCr 1. Workstation: 7 kL; 0.2 tons; MCr 0.0015 Some rounding artifacts may appear in totals; I did some fast rounding as I went that isn't rigorous. Steve Bonneville <bonn0015@gold.tc.umn.edu>