4e Stats:

1) AT-PT: DR 98 is only for the front. Carries 330 lbs (1.36 cf) of cargo.

Equipment: Body: Medium Radio (200-mile range), with the GPS, basic encryption, and satellite uplink options (see p.HT39), tactical ESM detector, PESA binoculars, inertial navigation system, IFF system, hardened complexity 6 small computer with one HUD terminal, fire suppression system, crashweb, 1-man environmental control, NBC kit.

2) AT-ST: 

Weaponry:

2xTL11 Blaster Rifles [Body:F] (240 shots each).

2xTL11 Blaster Carbines [Body:L] (240 shots each).

Electromag Grenade Launcher [Body:R] (6 shots).

Equipment: Body: Medium Radio (200-mile range), with the GPS, basic encryption, and satellite uplink options (see p.HT39), tactical ESM detector, PESA binoculars x2, AESA (p.UT65), inertial navigation system, IFF system, hardened complexity 6 small computer with two HUD terminals and Targeting program, fire suppression system, crashweb, 1-man environmental control, NBC kit, hardpoints for port and starboard weapons, universal mount for all weapons. 

3)  Armor provides Radiation PF 100. DR is 200 on passage tube (neck) only.

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.