01-22-2010, 06:04 PM | #1 |
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Location: Chicago, IL
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[3e, SW] AT-AT
AT-AT
Subassemblies: Body +6, Head +4, Armored Passage Tube +0, four Legs +4. Powertrain: 450-kW Leg Drivetrain with 500-kW Nuclear Power Unit (5 year lifespan); 108,000-kWs Rechargeable Power Cell for blaster cannons. Occupancy: 5 RCS, 40 NPS Cargo: 2,000 kg (88 cf.) Armor All: 4/350 except Passage Tube (4/200). Radiation PF 100. Weaponry: 2xTL11 Heavy Blaster Rifles [Body:F] (240 shots each).* 2xTL11 Blaster Rifles [Body:L,R] (240 shots each). *Fire linked. Equipment: Head: 5,000-mile medium-range communicator with scrambler; 50,000-mile long range communicator with scrambler; radio jammer (-5; 5-mile), 10-mile PESA (Scan 17), 10-mile AESA (Scan 17), 100x telescope (+6/+12); 10-mile radscanner; inertial navigation system, IFF, HUDWAC (-5 to SS), laser rangefinder, laser/radar detector, three hardened minicomputers (Complexity 6) with three terminals and Targeting program, full fire suppression system; computerized controls, three crashwebs, 5-man environmental control, five NBC kits, hardpoints with universal mounts for port and starboard weapons. Body: Two full fire suppression systems (upper and lower decks); 40 crashwebs; 40-man environmental control; 40-man NBC kit, workshop; automed; two forcelocks; vehicle bay for five speeder bikes; cargo bay. Overall: Sealed, basic IR cloaking. Statistics: Size: 20 m. x?x 15 m. Payload: 8.5 tons Lwt.: 44.73 tons Volume: 8,276 cf. Maint.: 14.5 hours Price: $1,911,387 HT: 12. HPs: 5574 Body, 1341 Head, 45 Passage Tube, 757 each Leg. gSpeed: 37.5 gAccel: 2.5 gDecel: 20 gMR: 0.75 gSR: 4 Ground Pressure: Low. 4/5 Off-Road speed. Design Notes: Body is 5,452 cf; Head is 643 cf; Passage Tube is 4 cf; Legs are 2,181 cf. Structure is Heavy, Standard. Armor is Advanced Metal (durasteel); it offers a radiation PF of 100 (p. VE167). Sealed. Computerized controls. Design gSpeed was 38.1 mph; the "historical" value is shown above. The alternate rule for calculating gAccel for legged vehicles (p. VE129) was ignored to represent the lumbering nature of legged vehicles in the Star Wars universe, however for GMs wishing to have the higher accelerations, gAccel is 13/11 (over/under 30 mph). The NPU produces an extra 22 kW which can be used to recharge the power cell for the blaster cannons. The passage tube was designed by compressing a 100' armored passage tube (p. VE69) down to 10'. Weight and cost were kept the same, volume was divided by 10, and DR was multiplied by 10. While not completely accurate, it was a simple solution. This design was created with a Structure First design path as the vehicle is mostly empty space. Measurements were taken both from a 2-D drawing in the Dark Force Rising sourcebook, and from a 3-D model. Both systems arrived at roughly the same volumes for the body and head. However, there is some discrepancy about the actual height of an AT-AT; this design assumes 15 meters, although some sources claim a height of 22 meters. Even at this smaller stature, there is a great deal of available space in the design.
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01-24-2010, 01:08 AM | #2 |
Join Date: Oct 2005
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Re: [3e, SW] AT-AT
The weapons seem rather light. They did destroy the power generators quite easily. I think the heavier guns should probably be vehicle scale. It's possible they usually fire at reduced strength (note how the gunner sets them to "maximum firepower" before attacking the generator) to reduce energy draw. Bigger guns and a larger energy bank would take up some of that empty space. I know you're relying on the WEG stats, but in this case it doesn't seem to fit with movie performance.
Also, IRC, some can carry 2 AT-STs instead of the speed bikes, which might take up more of the empty space. |
01-24-2010, 08:22 AM | #3 |
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Re: [3e, SW] AT-AT
Using 3e rules for TL9 blasters with 2 TLs of improvement, the heavy blaster rifles do inflict 28d+1 imp. I had considered using starship particle beams from Space, but a single small P-beam took up 500 cf!
I have to admit, I am a little torn on the subject too, but again decided that since Hoth Troopers were not instantly vaporized when shot, the weapons can't be too strong. It doesn't help to explain how they blew up the shielded power generators--maybe General Veers rolled a critical success :) My in-house solution is this: personal hand weapons are treated as tight-beam weapons (1/3 damage with armor divisor 4), but vehicle weapons are not. That allows Jar-Jar to be shot with a blast rifle from a stormtrooper and from an AT-AT and have the effects be dramatically different. So in the former case, unarmored, he'd take 9d imp, and in the latter 28d. The AT-STs are carried in place of the troops--but there would still be plenty of space for all three things . . .
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02-20-2010, 06:20 PM | #4 |
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Re: [3e, SW] AT-AT
My redesign, with a lot more stomp:
KDY AT-AT (TL11) Subassemblies: Body +6, Head +4, Armored Passage Tube +0, four Legs +4. Powertrain: 4,000-kW Leg Drivetrain with 4,500-kW Nuclear Power Unit (5 year lifespan); 106,789,200-kWs Rechargeable Power Cell for blaster cannons. Occupancy: 5 RCS, 40 NPS Cargo: 2,000 kg (88 cf.) Armor All: 4/3,500 except Passage Tube (4/2,000). Radiation PF 1,000,000. Weaponry: 2xTL11 Heavy Blaster Cannons [Body:F] (150 shots each).* 2xTL11 Medium Blaster Cannons [Body:L,R] (300 shots each). *Fire linked. Equipment: Head: 5,000-mile medium-range communicator with scrambler; 50,000-mile long range communicator with scrambler; radio jammer (-5; 5-mile), 10-mile PESA (Scan 17), 10-mile AESA (Scan 17), 100x telescope (+6/+12); 10-mile radscanner; inertial navigation system, IFF, HUDWAC (-5 to SS), laser rangefinder, laser/radar detector, three hardened minicomputers (Complexity 6) with three terminals and Targeting program, full fire suppression system; computerized controls, three crashwebs, 5-man environmental control, five NBC kits, hardpoints with universal mounts for port and starboard weapons. Body: Two full fire suppression systems (upper and lower decks); 40 crashwebs; 40-man environmental control; 40-man NBC kit, workshop; automed; two forcelocks; vehicle bay for five speeder bikes; cargo bay. Overall: Sealed, basic IR cloaking. Statistics: Size: 20 m. x?x 15 m. Payload: 8.5 tons Lwt.: 389 tons Volume: 8,276 cf. Maint.: 7.5 hours Price: $6,952,626 HT: 12. HPs: 11152 Body, 2682 Head, 90 Passage Tube, 1514 each Leg. gSpeed: 37.5 gAccel: 2.5 gDecel: 20 gMR: 0.75 gSR: 4 Ground Pressure: Very High. 1/3 Off-Road speed. Design Notes: Body is 5,452 cf; Head is 643 cf; Passage Tube is 4 cf; Legs are 2,181 cf. Structure is Extra-Heavy, Standard. Armor is Expensive Metal (durasteel); it offers a radiation PF of 1,000,000 (p. VE167). Sealed. Computerized controls. Design gSpeed was 38.5 mph; the "historical" value is shown above. The alternate rule for calculating gAccel for legged vehicles (p. VE129) was ignored to represent the lumbering nature of legged vehicles in the Star Wars universe, however for GMs wishing to have the higher accelerations, gAccel is 13/11 (over/under 30 mph). The NPU produces an extra 473 kW which can be used to recharge the power cell for the blaster cannons. The passage tube was designed by compressing a 100' armored passage tube (p. VE69) down to 10'. Weight and cost were multiplied by 10, volume was divided by 10, and DR was multiplied by 100. While not completely accurate, it was a simple solution. This design was created with a Structure First design path as the vehicle is mostly empty space. Measurements were taken both from a 2-D drawing in the Dark Force Rising sourcebook, and from a 3-D model. Both systems arrived at roughly the same volumes for the body and head. However, there is some discrepancy about the actual height of an AT-AT; this design assumes 15 meters, although some sources claim a height of 22 meters. Even at this smaller stature, there is a great deal of available space in the design. Stats for the blaster cannons are as follows: Heavy Blaster Cannon: SS 30, Acc 22, 1/2D 7100, Max 21000, RoF 1, Damage 6dx60(4) or 6dx180. Medium Blaster Cannon: SS 25, Acc 19, 1/2D 3000, Max 8900, RoF 2, Damage 6dx25(4) or 6dx75.
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02-21-2010, 03:58 PM | #5 | |
Join Date: Feb 2010
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Re: [3e, SW] AT-AT
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I think I'd make the medium cannons bit more rapid fire, and the heavy cannons maybe 1/2. Haven't watched the movies in a while, though. |
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02-21-2010, 09:30 PM | #6 |
Join Date: Dec 2005
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Re: [3e, SW] AT-AT
The shield covered the entire base. They walked through the shield before making the attack. All StarWars brand generators are highly volitile and prone to exploding at the least impact. There's also the entire "vulnerable parts in highly accessible places" design paradim to consider.
Anakin does the same thing to the Trade Federation battle ship in episode I. I think it's safe to say that StarWars shields can handle smaller physical stuff like missles but bigger stuff overloads the system. Alternately this might explain the dominance of fighters in the setting. It may be that shields can be controlled tightly enough to let fighters pass while intercepting other attacks. Fighters carry ship buster proton torpedos and need to get inside the shields to fire them.
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02-22-2010, 12:35 PM | #7 | |||||
Join Date: Nov 2008
Location: Germany
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Re: [3e, SW] AT-AT
Looking at this, I wonder if the AT-AT should be a tank or an armored personnel carrier. It carries twice as many troops as an AAV-7, three times as many as a M113, and seven times as many as a Bradley. It is armed with multiple weapons, and they are relatively small compared to the total vehicle.
Of course a 400-ton APC is just right if you want to stress the full might of the Imperium. Quote:
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Expansion 1 has rules for occupant access space, like aisles. Roomy seats with superior access for the armored troopers would solve much of your problem. |
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02-22-2010, 05:56 PM | #8 | ||||||||||||||
World Traveler in Training
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Re: [3e, SW] AT-AT
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But seriously, aren't PESA and AESA 360-degree? Quote:
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02-22-2010, 06:12 PM | #9 | |
World Traveler in Training
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Location: Chicago, IL
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Re: [3e, SW] AT-AT
Quote:
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02-23-2010, 09:55 AM | #10 | |
Join Date: Nov 2008
Location: Germany
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Re: [3e, SW] AT-AT
Quote:
Yes. VE168, line-of-sight sensors vs. indirect sensors. Realistically speaking even the 180-degree coverage is generous, but maybe the stats include limited on-mount traverse. Since sensors can't be mounted back-to-back with zero thickness, even two won't give you 360-degree coverage, but it would take heroic skill levels to exploit that. VE77, first sentence of the NBC kit entry. But is it combat engineer tools or a workshop? A workshop means a workbench with things like a lathe. |
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3rd edition, star wars, vehicles |
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