Hotchkiss 81mm Mortars in GURPS

Hotchkiss MO-81-61-LC, 81mm (France, 1961-1997)

The Léger Court (“Light Short”) infantry mortar is an evolution of the basic Stokes mortar (GURPS High-Tech, p. 145) design: a baseplate (31 lbs.) and bipod (27.5 lbs.) mount, supporting a simple muzzle-loading barrel (28 lbs.), and sights (1.5 lbs.). The breech face screws onto the barrel and has a retractable firing pin, making extraction of unfired bombs safer.

In addition to HE (in table), it fires illumination (600 yard radius, 55 seconds), WP (Dmg 4d [4d] burn ex, 23 yard radius cloud of smoke lasting 1 minute), and titanium tetrachloride smoke (23 yard radius cloud lasting 2 minutes). The smoke from the latter contains a small amount of hydrochloric acid vapor which can cause injury with prolonged exposure: treat as a corrosive atmosphere (Basic Set, p. 429) resisted at HT.

The MO-81-61-LL (Léger Long, “Light Long”) is a long-barreled variant (Wt 95, Rng 130/5,000, $6,500). It uses the same bipod and sights as the LC but has a 33 lbs. baseplate and 32.5 lbs. barrel.

The Thompson-CSF LLR (Léger Long Renforcé, “Light Long Reinforced) is the latest version (1997-, TL 8, Wt 95, Rng 280/6,300, $7,000). It has the same baseplate and barrel weight as the LL, but is more rugged and able to fire more powerful ammunition. An optional 6 lbs. unit allows trigger-firing.

ARTILLERY (CANNON) (IQ−5)

TL Weapon Damage Acc Range Weight RoF Shots ST Cost LC Notes
7 MO-81-61-C, 81mm 6d×3 [4d] cr ex 3 90/4,500 88/9.5 1 1(4) 20M $6,000 1 [1]

[1] First Range figure is minimum range.