Lightweight Towed Howitzer Demonstrator. Phase 1 and Partial Phase 2. Volume D3. Part 2. Structural Analysis of System.
Final rept. 20 Dec 85-13 Mar 87,
FMC CORP MINNEAPOLIS MN NORTHERN ORDNANCE DIV
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The LTHD Lightweight Towed Howitzer Demonstrator was to be a 9,000 lb equivalent to the M198, transportable via Blackhawk helicopter, with reduced emplacement time using fewer personnel. The FMC design achieved weight reduction via a mortar-like configuration, composites structure, and hydraulic actuators. Recovery of power from the recoil system, in turn, facilitated crew reduction via hydraulic emplacement, four-way joystick tube lay, and power ramming. FM completed Concept Development PH I and two-thirds of Detailed Design Ph II prior to funds running out. Keywords 155mm towed gun howitzer, advanced weapons, composite cradle, composite hydraulic actuators, composite trails, field artillery weapon, firing stability analysis, howitzers, hydraulic control valves with force feedback, hydraulic joystick control of gun direction, hydraulic inertial rammer, hydraulic opening breech, hydraulic primer autoloader, load out of battery howitzer, mortar howitzer, recoil energy recovery, recoil mechanism, metal matrix composites, titanium muzzle brake, titanium platform, titanium spade, titanium walking beams, thermal stability, towing stability analysis, unconventional weapons.
APPROVED FOR PUBLIC RELEASE