Tag Archives: 2171

A7038 – Function Generator – 8116A

The fully programmble HP 8116A features pulse as well as function generator capabilities in one small unit. A broad 1 MHz to 50 MHz band for all waveforms and a wide choice of operating and modulating modes assure high flexibility. These factors, plus good repeatability, make the HP 8116A a sound, long-term investment.

Features include:

  • Sine, triangle, square, haverfunctions, and D.C.
  • 1MHz to 50 MHz, 32Vpp for all waveforms
  • Variable (10 ns min) pulse width, 6 ns transitions
  • Modulation
  • Self Prompting operating concept
  • Error recognition and self test

A70367G – Function Generator – 33120A

The HP 33120A is a high-performance synthesized function generator that operates in the frequency range of 100 Hz to 15 Mhz. It has multiple waveform generation capabilities, which include sine, square, triangle, ramp, and noise. Its flexible system features include downloadable 16,000-point arbitrary waveform memories, HP-IB (IEEE-488) and RS-232 interfaces, and SCPI (Standard Command for Programmable Instruments) capabilities.

A7021 – COUNTER FREQUENCY – AN/USM-495A

The 1992 Universal Counter provides Frequency, Period, Time Interval, Ratio, Totalize, Phase, and Peak Amplitude measurements. It covers the frequency range of DC to 1.3GHz. Channel A’s sensitivity is 25 mV rms to 100MHz and 50 mV rms to 160MHz. Channel B: Same sensitivity as Channel A except that the frequency range is 10Hz to 100MHz. Channel C’s sensitivity isless than 15 mV rms from 40MHz to 1GHz and less than 75 mV up through 1.3GHz.

E1095 – M252 81mm Mortar System

The M252 81mm Mortar System was developed under a co-developement agreement with the United Kingdom to replace the M29A1 Mortar. A Blast Attenuation Device (BAD) is attached to the muzzle of the cannon assembly to reduce the blast effects on the mortar crew. The M252 is ideally suited to support airborne, air assault, mountain and light infantry units.
Length: 56 inches (142.24 centimeters)
Bore diameter: 81mm
Elevation: 45 to 85 degrees
Weight:

  • Mortar Assembly: 35 pounds (15.89 kg)
  • Bipod: 26 pounds (11.80 kilograms)
  • Baseplate: 25.5 pounds (11.58 kilograms)
  • Sight Unit: 2.5 pounds (1.14 kilograms)
  • Total: 89 pounds (40.41 kilograms)

Maximum effective range: 5700 meters
Minimum Range: 80 meters

Rates of fire:

  • Maximum: 33 rounds per minute
  • Sustained: 16 rounds per minute

Unit Replacement Cost: $24,717

Type Classified Standard: July 1984
The M252 Mortar System consists of the following major components:

  • M253 Cannon Assembly (35 lbs)
  • M177 Bipod Assembly (27 lbs)
  • M3A1 Baseplate (25.5 lbs)

Features: The M252 81mm Medium Extended Range Mortar is a crew-served, medium weight mortar which is highly accurate and provides for a greater range (4,500 meters to 5,650 meters) and lethality than the previous 81mm mortar. The cannon has a crew-removable breech plug and firing pin. The muzzle end has a short tapered lead-in which acts as a blast attenuator device. The breech end is finned for better cooling. This mortar also uses the standard M64 mortar sight of the 60mm mortar, M224.

Background: This mortar replaced the previous Marine Corps 81mm mortar in 1986. The M252 is an adaptation of the standard British 81mm mortar developed in the 1970s. It is mostly commonly found in the mortar platoon of an infantry battalion.

E1065 – M224 Mortar System

The M224 60mm LWCMS is ideally suited to support airborne, air assault, mountain, ranger, Special Operations Forces and light infantry units. The M224 can be drop fired (conventional mode) or trigger fired (conventional or hand-held mode). A lightweight auxiliary baseplate is used when firing the mortar in the hand-held mode.
Length: 40 inches (101.6 centimeters)
Weight: 46.5 pounds (21.11 kilograms)
Bore diameter: 60mm
Maximum effective range: 2.17 miles (3490 meters)
Rates of fire:

  • Maximum: 30 rounds/minute
  • Sustained: 20 rounds/minute

Unit Replacement Cost: $10,658

The M224 Mortar System consists of the following major components:

  • M225 Cannon Assembly (14.4 lbs)
  • M170 Bipod Assembly (15.2 lbs)
  • M7 Baseplate (14.4 lbs)
  • M8 Auxiliary Baseplate (3.6 lbs)

Mission: To provide the company commander with an indirect-fire weapon.

Features: The M224 60mm Lightweight Mortar is a smooth bore, muzzle loading, high-angle-of-fire weapon. The cannon assembly is composed of the barrel, combination base cap, and firing mechanism. The mount consists of a bipod and a base plate which is provided with screw type elevating and traversing mechanisms to elevate/traverse the mortar. The M64 sight unit is attached to the bipod mount via a standard dovetail. An additional short range sight is attached to the base of the cannon tube for firing the mortar on the move and during assaults. It has a spring-type shock absorber to absorb the shock of recoil in firing.

Background: The M224 replaced the older (WWII era) M2 and M19, 60mm Mortars. These weapons only possessed 2,200 yards of effective range. The M224 was designed to fire all types of the older ammunition, but its primary rounds are of the newer, longer-range type.