Weapons of the Amerind Empire: 107mm Howtar

Amerind Empire Heavy Artillery

<a title="M98 Howtar"

This is the main Heavy Artillery Piece of the Amerind Empire: a copy of the M98 Howtar (the M2 107mm mortar placed on the 1920’s era M33 carriage for the 75mm howitzer).

The original Howtar was found in a military museum and eventually adopted by the Amerind Empire as a very effective method of deterring attack on their strongpoints. The Howtar is relatively small, is easy to transport and can be towed by a light vehicle or even a horse. An additional advantage is that – true to its mountain howitzer heritage – it can also be disassembled and carried by 7 mules.

Manufacture of the Howtar’s hydropneumatic recoil system is complex and expensive, but the Amerind Empire considers the investment worthwhile.

Rate of fire: 5 rpm for 20 minutes (1 rpm indefinitely)
Effective ranges
Minimum: 515 meters
Maximum: 4,500 meters

Available ammunition

HE-T HE Shell 11.11
Filler: TNT, 3.64 kg
Muzzle Velocity: 256 m/s

Smoke WP Shell
Weight: 11.57 kg
Filler: White phosphorus (WP)
Muzzle Velocity: 250 m/s

Chemical H Shell
Weight: 11 kg
Filler: Mustard Gas 2.7 kg

A. Data pertaining to 107-mm Mortar Cannon M99:	B. Data pertaining to 107-mm Mortar Carriage M33:
1) General: Caliber: 107-mm (4.2-Inch) Length (tube and base cap): 1.8m. Weight (tube and base cap): 111.13kg. Rifling: 24 Lands and Grooves, graduated right-hand twist. Range (Maximum): 4,500 m Performance (average for new mortar): Type of ammunition: Fused and semi-fixed, complete round. Weight of projectile (varies): 11 to 11.5kg. Method of loading: Hand. 3) Sight Unit: M-34A2 M-79 Sight Mount XM-7 M-9A1 Adapter. M-62A/C Elbow Telescope. M-45 Boresight.	Type: Modified box type. Wheels: Automotive type, high speed. Tire size and type: 6.00 x 16 standard. Tire pressure: 20 lb. Weight of each wheel with tire: 90 lb. Brakes: None. Limits of elevation: Maximum: 1007 mils. Minimum: 117 mils. Traverse: Type: Axle. Maximum right: 63 mils. Maximum left: 63 mils. Equilibrator: Type (contained in trail): Spring (2).
C. Data pertaining to 107-mm Mortar Recoil Mechanism M38:	D. Data pertaining to Overall Dimensions of Mortar and Carriage:
Type: Hydro pneumatic. Maximum recoil allowable: 0.81 m. Minimum recoil allowable: 0.64 m. Normal recoil: 0.66 to 0.79 m. Nitrogen pressure at 70° F: 1,500 psi. Recoil oil: Type: Petroleum base hydraulic oil. Capacity: 1.5 litres. Reserve in recuperator: 1/2 fill of oil filling gun.	Length: 3.378 m (133 in.) Width: 1.27 m. Height: 1.32 m. Road clearance: 0.25 m. Weight complete: 584.68 kg.

Information from various sources . Ammunition information refers to the American M2 (1940’s vintage) mortar