Going with the "Five Rings" theme of the Hatamoto series, this uses the Taoist element of Metal ('kin') in the name. Nice 'gap' design until the development of the slightly superior (lower BV, higher speed) O-Bakemono
Type: Hatamoto-kin HTM-27K
Production: Draconis Combine (Luthien Armor Works, Luthien)
Combat Value: 1794 BV
Total Cost: 7,409,700 C-Bills (including x1.8 tonnage premium)
Internal Struc (std): 8t
Engine: Pitban 240: 11.5t
Walking: 3
Running: 5
Heat Sinks: 10(20): 0t
Gyro/Cockpit (std): 6t
Armor Factor (std): 15.5t (247-max pips)
Head 3/9
Center Torso 25/34/16
R/L Torso 17/25/9
R/L Arm 13/26
R/L Leg 17/34
Quirk: Easy to Maintain, Modular Weapons (Torso weapons)
2x Arrow IV (30cr, 30t) 10RA/5RT/5LT/10LA
6x Ammo (Arrow) 30 (6cr, 6t) RT/LT
2x CASE (2cr, 1t) RT/LT
1x Medium Laser (1cr, 1t) CT
1x Flamer (1cr, 1t) H
Inspired by the Naga artillery ‘Mech design used by Clan Wolf at the Battle of Tukayyid, the DCMS tasked Luthien Armor Works with developing a Combine equivalent that could provide close artillery support, as the Dragon was convinced that they could better integrate artillery into combat doctrine than could the zellbrigen-obsessed Clans. Turning to their versatile 80-ton Hatamoto/Charger chassis, LAW immediately began tinkering with fitting a pair of Arrow IV Artillery Systems into the assault frame, and by the end of 3053, they had managed to produce a ‘Mech that met most of the design criteria.
The first thing LAW engineers realized was that the Earthwerks VOL Endo-Steel chassis of the Hatamoto series was far too bulky to allow a pair of Arrow IV systems to be fitted to their proposed ‘Mech, and so they reverted to a few Wells 990 frames that had not yet been scrapped after upgrading their legacy Chargers. The second thing LAW engineers realized was that the heavy Pitban 320 engine of the Hatamoto precluded the addition of two heavy Arrow IV systems. Either Luthien Armor would have to produce a 320XL engine – a design not currently produced anywhere in the Combine – or they would have to import the pricey engines from the Free Worlds League. Instead, LAW switched to the use of Pitban 240 engines, produced to date in limited numbers for their Lancelot fire-support ‘Mech. This effectively turned the Hatamoto into a samurai-stylized Challenger, but as the new ‘Mech was intended to avoid direct-fire combat, that was not seen as a significant issue.
With the spare weight now available, engineers fitted a pair of Arrow IV Launchers, using SLDF-era schematics from the Helm Memory Core. Although LAW branded their launchers with the ‘Shigunga’ name, they are technically almost identical to the Luxor and Valiant systems used by the Confederation and Commonwealth. One was fitted into each side torso, effectively ‘upgrading’ the SRMs of the standard Hatamoto-Chi, but the greater bulk of the Arrow IV systems required the removal of both arms. Three tons of CASE-protected ammunition sit in each side torso, enough for one or two close-range artillery bombardment missions. A center-torso Victory 23R medium laser (also from the Lancelot lines) acts as very minimal backup weaponry, and a head-mounted Firestorm ‘Mech Flamer discourages enemy infantry from getting too close, and also can add a little smoke and devastation and built-up terrain.
DCMS senior leadership were intrigued enough by the concept that Luthien produced nearly twenty of the redesignated Hatamoto-Kin artillery-support ‘Mechs, before eventually developing and producing in 3058 a specially designed ‘Mech with almost identical capabilities: the O-Bakemono.