http://www.princeton.edu/~achaney/tmve/wiki100k/docs/AGM-114_Hellfire.html
http://science.howstuffworks.com/apache-helicopter2.htm
AGM-114A Basic Hellfire
- AGM-114B/C Basic Hellfire
- M120E1 low smoke motor.
- AGM-114B has electronic SAD (Safe/Arming Device) for safe shipboard use.
- Unit cost: $25,000
- AGM-114D/E Basic Hellfire
- Proposed upgrade of AGM-114B/C with digital autopilot—not built.
- AGM-114F Interim Hellfire
- Target: Tanks, armored vehicles.
- Range: 7,000 m (7,650 yd)
- Guidance: Semi-active laser homing.
- Warhead: 9 kg (20 lb) tandem shaped charge HEAT.
- Length: 180 cm (71 in)
- Weight: 48.5 kg (107 lb)
- AGM-114G Interim Hellfire
- Proposed version of AGM-114F with SAD—not built.
- AGM-114H Interim Hellfire
- Proposed upgrade of AGM-114F with digital autopilot—not built.
- AGM-114J Hellfire II
- Proposed version of AGM-114F with lighter components, shorter airframe, and increased range—not built.
- AGM-114K Hellfire II
A Hellfire II exposed through transparent casing.
- Target: All armored threats
- Range: 8,000 m (8,749 yd)
- Guidance:
- Semi-active laser homing with Electro-optical countermeasures hardening
- Digital autopilot improvements allow target reacquisition after lost laser lock
- New electronic SAD
- Warhead: 9 kg (20 lb) tandem shaped charge HEAT
- Length: 163 cm (64 in)
- Weight: 45.4 kg (100 lb)
- Unit cost: $65,000
- Essentially the proposed AGM-114J w/ SAD
- AGM-114L Longbow Hellfire
- Target: All armored threats
- Range: 8,000 m (8,749 yd)
- Guidance:
- Fire and forget Millimeter wave radar seeker coupled with Inertial guidance
- Homing capability in adverse weather and the presence of battlefield obscurants
- Warhead: 9 kg (20 lb) tandem shaped charge high explosive anti-tank (HEAT)
- Length: 176 cm (69.2 in)
- Weight: 49 kg (108 lb)
- AGM-114M Hellfire II
- Target: Bunkers, light vehicles, urban (soft) targets and caves
- Range: 8,000 m (8,749 yd)
- Guidance:
- Warhead: Blast fragmentation/incendiary
- Weight: 48.2 kg (106 lb)
- Length: 163 cm (64 in)
- AGM-114N Hellfire II
- Target: Enclosures, ships, urban targets, air defense units
- Range: 8,000 m (8,749 yd)
- Guidance:
- Warhead: Metal augmented charge (MAC) (Thermobaric)
- Weight: 48 kg (105 lb)
- Length: 163 cm (64 in)
- AGM-114P Hellfire II
- Version of AGM-114K optimized for use from UCAVs flying at high altitude.
- ATM-114Q Hellfire II
- Practice version of AGM-114N with inert warhead.
- AGM-114R Hellfire II
- Target: Bunkers, light vehicles, urban (soft) targets and caves
- Range: 8,000 m (8,749 yd)
- Guidance:
- Warhead: Integrated Blast Frag Sleeve (IBFS) (combine blast fragmentation and fragment dispersion).
- Weight: 50 kg (110 lb)
- Speed : Mach 1.3
- AGM-114S Hellfire II
- Practice version of AGM-114K with a spotting charge instead of a warhead.
- AGM-114T Hellfire II
- AGM-114R with insensitive munition rocket motor and electromagnetic control actuators.
Rocket motor[edit]
- Contractor: Alliant Techsystems
- Designation:
- M120E3 (Army)
- M120E4 (Navy)
- Main features:
- Qualified minimum smoke propellant
- Rod and tube grain design
- Neoprene bondline system
- Performance:
- Operating temperature: -43 °C to 63 °C (-45 °F to 145 °F)
- Storage temperature: -43 °C to 71 °C (-45 °F to 160 °F)
- Service life: 20+ years (estimated)
- Technical data:
- Weight: 14.2 kg (31.3 lb)
- Length: 59.3 cm (23.35 in)
- Diameter: 18 cm (7.0 in)
- Case: 7075-T73 aluminum
- Insulator: R-181 aramid fiber-filled EPDM
- Nozzle: Cellulose phenolic
- Propellant: Minimum smoke cross linked double based (XLDB)
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Propulsion and power
Hellfire is propelled by a single stage solid propellant Thiokol TX-657 solid-fuel rocket motor. The motor can generate 10Gs of initial thrust. The missile has a maximum velocity of 950mph.
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