H:

H ¹[vacuum tube] heater, ²henry [cgs unit of inductance], ³aircraft symbol- helicopter or search/rescue

H&I [JP 1-02] harassing and interdicting

H&S [FM 101-5-1] headquarters and service

H&V heating and ventilation

H-2 Sea Sprite

H-3 ¹King, ²[FM 101-5-1] 3 hours prior to H-hour

H-46 Knight

H-AMI host-automated message interface

H-B hexadecimal to binary

H-D hexadecimal to decimal

H-HMMWV heavy highly mobile (high mobility) multipurpose wheeled vehicle

H-hour ¹[FM 101-5-1] specific hour on D-day at which a particular operation commences, ²[JP 1-02] seaborne assault landing hour

H-Hour time of commencement

H+7 [FM 101-5-1] 7 hours after H-hour

H+30 min [FM 101-5-1] 30 minutes after H-hour

H/C hand carry

H/S health and safety

H/V horizontal/vertical

H/W hardware

H6000 Honeywell 6000 Series Computers (WWMCCS®)

H700 Honeywell 700 minicomputer

ha high altitude

HA ¹half-adder, ²heavy armor, ³heavy artillery, ⁴USN attack helicopter squadron, ⁵hazard assessment, ⁶higher authority, ⁷[FM 101-5-1] Haiti, ⁸[FM 101-5-1] holding area, ⁹[FM 101-5-1] humanitarian assistance

HAAC helicopter air-to-air combat

HAAP Homebase/Advanced Assignment Program

HAARS High-Altitude Airdrop Resupply System

HAB ¹heavy assault bridge, ²heavy asset bridge, ³[CJCSI 3222.01] high-altitude burst

HAC ¹House Appropriations Committee, ²[JP 1-02] helicopter aircraft commander

HACC [FM 101-5-1] humanitarian assistance coordination center

HACCP hazard analysis critical control point

HACMP high availability cluster multi-processing [IBM]

HACT helicopter active control technology

HAD half-amplitude duration

HADAS helmet airborne display and sight

HADS ¹hypersonic air data sensor, ²Hawaiian Air Defense System (PACAF), ³Helicopter Air Data System, ⁴high accuracy digital sensor

HAE UAV High Altitude Endurance Unmanned Aerial Vehicle

HAF ¹Headquarters Air Force, ²high altitude fluorescence

HAFMDS Headquarters Air Force Manpower Data System

HAHO high altitude high opening [parachute technique]

HAIS Hawaiian Air Intelligence System (PACAF)

HAL ¹highly automated logic, ²hard array logic, ³hardware abstraction layer [Microsoft WinNT], ⁴house-programmed array logic

HALDIGS Howard and Lajes Digital Graphic System

HALE High Altitude/Long Endurance (UAV)

Hall ED/M Hall effect devices

HALO ¹high-attitude large optics, ²high altitude low observable, ³high altitude, low opening [parachuting technique]

HALP [AR 310-50] HAWK Equipment Logistics Program

HALSIM hardware logic simulator

HAM hardware associative memory

HAMD [AR 310-50] helicopter ambulance medical detachment

HAMPS Host AUTODIN Message Processing System

HAMS ¹hardness assurance, maintenance and surveillance, ²Hospital Aseptic Management System

HANG Hawaii Air National Guard

HANSA Hanscom Satellite Element Set Inventory

HAP ¹hazard abatement program, ²host access protocol, ³high accident potential, ⁴[AR 310-50] Home Owners Assistance Program

HAPDAR hard point demonstration array radar

HARAC high altitude resonance absorption calculation

HARDMAN ¹hardware vs.manpower, ²hardware vs. manpower methodology. ³manpower planning for hardware (Navy/USMC)

HARDMAN II Marine Corps Military Manpower/Hardware Integration System II

HARDS High Altitude Radiation Detection System

HARE Hanscom Automated Request for Proposal Environment

HARM High-Speed Anti-Radiation Missile, AGM-88A

HARP ¹Halpern antiradar point, ²high altitude research project, ³high altitude release point

HARPS Hybrid AUTODIN Red Patch Service

HARS Heading/Attitude Reference System

HARTRAN Hardwell FORTRAN

HARV high-alpha research vehicle [modified F-18]

HAS ¹hardened aircraft shelter, ²hazard analysis summary

HASC House Armed Services Committee (obsolete, see HNSC)

HASP ¹high-altitude sampling program, ²high-altitude sounding project, ³Houston automatic spooling priority system

HASPA high altitude super-pressure powered aerostat

HAST ¹high-altitude supersonic target, ²[JP 3-08] humanitarian assistance survey team

HAT hardened antenna technology

HATR hazardous air traffic report

HATS heuristic automated transportation mode system

HAW [AR 310-50] heavy antitank/assault weapon

HAWK PCP Hawk platoon command post

HAWS Hawaiian Area Wideband System

HAZ ¹heat affected zone, ²[JP 1-02] hazardous cargo

HAZCOM hazardous communications

HAZMAT hazardous material

HB ¹high burst, ²horizontal baffle, ³heavy boat

HBA host bus adapter

HBC House Budget Committee

HBCU historically black college and university

HC ¹heuristic concepts, ²high capacity [projectile], ³high carbon, ⁴holding coil, ⁵hybrid computer, ⁶[USN] helicopter combat support squadron, ⁷high capacity, ⁸hollow charge, ⁹host country, ¹⁰[AR 310-50] hydrogen chloride

HC-130 Hercules

HCA ¹half-cone angle, ²heading crossing angle, ³humanitarian and civic assistance, ⁴head of contracting activity, ⁵head of contracting agency

HCCAS ¹Hardware Configuration Statistical Accounting System, ²[JP 1-03.17] hostile casualty

HCD hot-carrier diode

HCE ¹hollow-cathode effect, ²human-caused error

HCF ¹halt and catch fire, ²high-carbon ferrochrome

HCG horizontal location of center of gravity

HCI ¹human computer interaction, ²human computer interface, ³hardness critical item

HCL ¹high, common, low [relay], ²horizontal center line, ³hardware configuration list, ⁴[JP 3-07.4] hydrochloride

HCM HARDMAN comparability methodology

HCMM heat capacity mapping mission

HCN host country national

HCO [JP 1-02] helicopter control officer

HCOR [AR 310-50] honorary colonel of the regiment

HCP ¹health care provider, ²[JP 1-02] hardcopy printer

HCS ¹helicopter combat search and rescue/special warfare support squadron, ²heliborne common sensor (Army), ³helicopter combat support, ⁴hazard communication standard, ⁵[JP 1-02] helicopter coordination section, ⁶[JP 1-02] helicopter control station,⁷[JP 1-02] helicopter combat support (Navy)

HCSAS Hardware Configuration Status Accounting System

HCSS ¹hospital computer sharing system, ²high capacity storage system

HCTR high capacity trunk radio

HCU high capacity computer unit [CHS-2]

HD ¹half duplex, ²head diameter, ³heavy duty, ⁴hard disk, ⁵high density, ⁶heavy drop, ⁷home defense, ⁸[FM 101-5-1] blister agent (distilled Levinstein mustard), ⁹[JP 1-02]harmonic distortion, ¹⁰[AR 310-50] harbor defense, ¹¹[AR 310-50] honorable discharge

HDA head disk assembly (in winchester disk drives)

HDB high density bombing

HDC ¹helicopter direction center, ²[JP 1-02] harbor defense commander, ³[AR 310-50] harbor defense command

HDCD high definition compatible digital

HDD ¹hard disk drive, ²head down display, ³high definition display

HDDR high density digital recording

HDDS high density data system

HDF ¹high frequency direction finding, ²hierarchical data format [NCSA]

HDH HDLC distant host

HDI head to disk interference

HDL ¹[Army] Harry Diamond Laboratory, ²hardware description language

HDLC high-level data link control

HDM hardware device module

HDMI high density multi-chip interconnect

HDMR high density multitrack recording

HDMS high density memory Set

HDO horizontal parallax only

HDP Hardware Development Plan

HDPLX [JP 1-02] half duplex

HDR ¹header, ²high data rate

HDSC high density signal carrier [DEC]

HDSL high-data-rate digital subscriber line

HDSS holographic data storage system

HDT ¹host digital terminal, ²high driver task

HDTV high definition television

HDU ¹hard disk unit, ²hose drum unit

HDVD high definition volumetric display

HDW hardware

HDX half duplex

HDY [AR 310-50] heavy duty

HE ¹high explosives, ²human engineering, ³handling duplex, ⁴heat exchange, ⁵heavy equipment

HE-T [AR 310-50] high-explosive tracer

HE/EXJAM hand emplaced expendable jammer

HEAP high explosive armor piercing

HEART health evaluation and risk tabulation

HEAT ¹high explosive, anti-tank, ²helicopter external air transport

HEAT-T [AR 310-50] high-explosive anti-tank-tracer

HEC [JP 1-02] helicopter employment coordinator

HECP [AR 310-50] harbor entrance control point

hecto prefix meaning 100

HECVES [AR 310-50] harbor entrance control vessel

HED horizontal electrical dipole

HEDP ¹high explosive dual purpose, ²[AR 310-50] high-explosive dual-purpose

HEDR human engineering domain report

HEED helicopter emergency egress device

HEEL helicopter emergency egress lighting

HEELS Helicopter Emergency Egress Lighting System

HEFOE [JP 1-02] hydraulic electrical fuel oxygen engine

HEFU [AR 310-50] high-energy firing unit

HEI high explosive incendiary

hel helicopter

HEL ¹human engineering laboratory, ²high energy laser program

HEL-H [JP 1-02] heavy helicopter

HEL-L [JP 1-02] light helicopter

HEL-M [JP 1-02] medium helicopter

HELITEAM [AR 310-50] helicopter team

HELO helicopter

HELP ¹Howitzer Extended Life Program, ²highly extendible language processor

HELSTF high energy laser system test facility

HELTA High Endurance Lighter-Than-Air Project (USN/USCG)

HEM hybrid electromagnetic wave

HEMP high-altitude electromagnetic pulse

HEMT high electron mobility transition

HEMTT heavy expanded mobility tactical truck

HEO high Earth orbit

HEOB hostile electronic order of battle

HEP ¹header, ²human error probability, ³high explosive plastic

HEP-T [AR 310-50] high-explosive plastic tracer

HEPA high-efficiency particulate air filters

HER human error rate

HERA high explosive rocket assisted

HERBB Hanscom Electronic Request For Proposal Bulletin Board

HERC [AR 310-50] Nike Hercules [aircraft]

HERF ¹high energy rate forming, ²[JP 1-02] hazards of electromagnetic radiation to fuel

HERO ¹hazard of electromagnetic radiation to ordnance, ²[JP 1-02] electromagnetic radiation hazards

HEROS German command and control system

HERP [JP 1-02] hazards of electromagnetic radiation to personnel

HERT Headquarters Emergency Relocation Team (SAC)

HES hardcopy exploitation segment (JSIPS)

HESD helicopter electrostatic discharge

HESH high explosive squash head

HET heavy equipment transporter

HETF Hill Engineering Test Facility

HETS Heavy Equipment Transporter System

HEV [AR 310-50] health and environment

HEW United States Department of Health, Education, and Welfare

HEX hexadecimal

HF ¹high frequency (3-30 MHz), ²human factor(s), ³height finder [radar], ⁴[AR 310-50] harassing fire

HF/E human factors/engineering

HF/SSB high frequency/single sideband

HFAARS high frequency adaptive antenna receiving system

HFAC ¹human factors, ²House Foreign Affairs Committee

HFAJ high frequency anti-jam

HFC hybrid fiber-coaxial

HFDF ¹high frequency [radio] direction finding, ²high frequency distribution frame

HFE human factors engineering

HFEA human factors engineering analysis

HFEP host front end processor

HFET heterojunction field-effect transistor

HFIC HF intra-task force communications

HFMS high frequency monitoring system

HFO high-frequency oscillator

HFP ¹host to front end protocol, ²[AR 310-50] special pay for duty subject to hostile fire

HFR height finding radar

HFRB ¹high frequency radio broadcast, ²high frequency regional broadcast

HFS hierarchical file system [Macintosh]

HFSWR high frequency surface wave radar

HFT high function terminal [IBM]

HFT&E human factors test and evaluation

HFTUAAM high frequency tuning unit antenna automatic matching

Hg mercury

HG ¹hydrogen generator, ²hand generator

HGA Hercules graphics adapter

HGAS high gain antenna system

HGCP Hercules graphics card plus

HGT high group transmit

HH ¹hour, ²health hazard(s), ³[JP 1-02] homing pattern

HH-60A Night Hawk Helicopter (USAF)

HHA ¹health hazard assessment, ²health hazard analysis

HHAR ¹health hazard assessment report, ²health hazard analysis report

HHB [FM 101-5-1] headquarters and headquarters battery (FA and ADA)

HHC ¹headquarters and headquarters company, ²hand-held controller

HHCL [AR 310-50] "H" hour coordinating line

HHCU hand-held control unit

HHD headquarters and headquarters detachment

HHG household goods

HHI higher headquarters' issues

HHLAPI high-level language application programming interface

HHLL hand-held laser locator

HHLR hand-held laser rangefinder

HHM hand held monitor

HHMMWV heavy high mobility multipurpose wheeled vehicle

HHOC headquarters, headquarters and operations company

HHR [AR 310-50] hand-held radar

HHS ¹headquarters and headquarters squadron, ²health and human services

HHSC health hazard severity category

HHT [FM101-5-1] headquarters and headquarters troop (cavalry units)

HHTs hand-held terminals

HHV heavy HMMWV variant

HI Hawaii

HI SWTR Hawaiian Island Shallow Water Training Range

HI-C high conversion critical experiment

HIA ¹held in abeyance, ²[AR 310-50] hold in abeyance

HIAC high altitude camera

HIC hybrid integrated circuit

HICAP [JP 1-02] high-capacity firefighting foam station

HICCS hardware inventory configuration control system

HICOM High Command (USN HF/SSB Communication Network)

HID high intensity discharge [lamps]

HIDACZ [FM 101-5-1] high-density airspace control zone

HIDAD high density array development program

HIDEC highly integrated digital electronic control

HIDM high information delta modulation

HIDSS helmet integrated display sighting system

HIDTA [JP 3-07.4] high intensity drug trafficking area

HIE helicopter installed equipment

HIF Hyper-G interchange format

HIFD high-density floppy disk

HIFR ¹helicopter in-flight refueling, ²hover in-flight refueling

HIHO high insertion, high opening

HIL ¹high-intensity lighting, ²human interface link [HP]

HILEX high level exercise

HILO high insertion, low opening

HIMAD high-to-medium air defense

HIMARS ¹High Mobility Artillery Rocket System, ²history management and retrieval system

HiMAT highly maneuverable aircraft technology

HIMEM high memory

HIMES history management and retrieval system

HIMEZ high-altitude missile engagement zone

HIOS headquarters integrated office system (Army)

HIP ¹Howitzer Improvement Program, ²host-IMP protocol, ³host-IPLI protocol, ⁴hot isostatic press

HIPAR ¹high power acquisition radar, ²high power illumination radar

HIPERNAS high-performance navigation system

HIPIR [AR 310-50] high-power illuminator radar

HIPO hierarchy-input-process-output

HIPOT high potential

HIPOTT high potential test

HIPPI high performance parallel interface

HIREL high reliability

HIRMS hypothetical information resource management system

HIROCC Hawaii Region Operations Control Center

HIRSS [JP 1-02] hover infrared suppresser subsystem

HIS ¹Honeywell Information Systems, ²hospital information system, ³Hypermedia Information System

HISA [AR 310-50] headquarters and installation support activity

HISRAN [AR 310-50] high-precision short-range navigation

HISS horizon IR (infrared) surveillance sensor

HIT high isolation transformer

HITL hardware in the loop

HITS hierarchical integrated test simulator

HIV Human Immunodeficiency Virus

HJ ¹[JP 1-02] crypto key change, ²[AR 310-50] HONEST JOHN

HL [FM 101-5-1] blister agent (mustard-lewisite mixture)

HL-UAV Hand-Launched Unmanned Aerial Vehicle

HLA high level architecture

HLCO high low close open

HLDC high level data link control (WIN)

HLFD high-level functional description

HLG [AR 310-50] Hawk Logistics Group

HLH heavy-lift helicopter

HLI host language interface

HLL high-level [computer] language

HLLAPI high level language application programming interface

HLLV heavy lift launch vehicle (SDI)

HLMR [AR 310-50] Hunter-Leggit Military Reservation

HLOS horizontal line-of-sight

HLPS [JP 1-02] heavy-lift preposition ship

HLQ high level qualifier

HLS hue, luminance, saturation (color model)

HLSC helicopter logistic support center

HLSUA Honeywell Large Systems Users Association

HLT halt

HLZ [JP 1-02] helicopter landing zone

hm hectometer

HM ¹[USN] helicopter mine countermeasures squadron, ²heavy metal, ³[JP 4-01.7] hazardous materials

HMA ¹high memory area [Microsoft], ²hub management architecture, ³(USMC) attack helicopter squadron

HMAL (USMC) attack/light helicopter squadron

HMC hybrid micro circuit

HMCT highway movements control team

HMCTAT Hazardous Material Cost Trade Off Analysis Tool

HMD helmet mounted display

HMG [AR 310-50] heavy machine-gun

HMH (USMC) heavy helicopter squadron

HMI ¹human machine interface, ²host message interface

HMIS ¹hazardous material information system, ²hazardous material information sheet

HML ¹(USMC) light helicopter squadron, ²hard mobile launcher (USAF)

HMM ¹(USMC) medium helicopter squadron, ²hidden Markov model

HMMP ¹hyper-media management protocol, ²hazardous material management plan

HMMWV highly mobile (high-mobility) multipurpose wheeled vehicle

HMMWV-H high mobility multipurpose wheeled vehicle - heavy

HMOS ¹high-performance, n-channel, silicon gate MOS, ²high density metal oxide semiconductor, ³high speed metal oxide semiconductor, ⁴high performance metal oxide semiconductor (see MOS, sense 5)

HMP ¹host monitoring protocol, ²host management protocol, ³hazardous material pharmacy

HMRPP hazardous material reduction prioritization process

HMS helmet mounted sight

HMT high mobility trailer

HMTT high mobility tactical truck

HMU ¹health monitoring unit, ²helmet-mounted unit, ³hydro-mechanical unit

HMW [JP 1-02] health, morale, and welfare

HMX (USMC) helicopter squadron

HN ¹horn, ²[USN] hospitalman, ³host nation, ⁴[FM 101-5-1] blister agent (nitrogen mustard)

HNA host nation approval

HNIL high-noise-immunity logic

HNS host-nation support

HNSC House National Security Committee (formerly HASC)

HNSMS Host Nation Support Management System (JCS)

HO ¹history office, ²historian, ³[FM 101-5-1] Honduras

HOA ¹Homeowners Assistance Fund, Defense, ²head of agency, ³[AR 310-50] heavy observation aircraft

HOB height of burst

HOBOS homing bomb system

HOC ¹[JP 3-08] humanitarian operations center, ²[JP 2-01] HUMINT operations cell

HOCNET Human Intelligence Operational Communications Network

HOD [CJCSI 5705.01] head of delegation

HOE ¹holographic-optical element, ²homing overlay experiment

HOF home office facility

HOGE [JP 1-02] hover out of ground effect

HOI headquarters operating instruction [Air Force]

HOIS hostile intelligence services

HOJ home-on-jam

HOL higher-order language

HOOAH an affirmation of agreement

HOP hybrid operating program

HOR [AR 310-50] home of record

hos [FM 101-5-1] hostile

HOS ¹hardware operating system, ²higher order software

HOSM host operations systems monitor

hosp [AR 310-50] hospital

HOSS [AR 310-50] Homing Optical System Study

HOSTAC [JP 1-02] Helicopter Operations From Ships Other Than Aircraft Carriers (USN publication)

HOTAS hands on throttle and stick

HOTOL horizontal take-off and landing

HOTPHOTOREP hot photo interpretation report

HOTT Hot Off the Tree (electronic newsletter)

how [AR 310-50] howitzer

HOW howitzer

HOW BAT howitzer battery

HOW; MSN howitzer; mission

HP ¹high pass, ²high pressure, ³horsepower, ⁴Hewlett-Packard (Company), ⁵high performance, ⁶high power, ⁷[AR 310-50] holiday pay

HP HR horsepower-hour

HPA ¹holding and positioning aid, ²high power amplifier, ³high performance absorber, ⁴head of procuring activity

HPAC ¹hazard prediction analysis code, ²high pressure air compressor, ³hazard prediction assessment capability

HPAG high power amplifier group

HPBW half-power bandwidth

HPC ¹handheld personal computer, ²high pressure compressor, ³high performance computing

HPCC high performance computing and communications

HPCWG high performance computing working group

HPD ¹high power density, ²high power destruction, ³high progressivity/density, ⁴[AR 310-50] high-performance drone

HPDJ Hewlett-Packard Desk Jet

HPF highest probable frequency

HPFS high-performance file system

HPG ¹hard copy processor group, ²Hewlett-Packard Graphics

HPGL Hewlett-Packard Graphics Language

HPI ¹high power illuminator, ²high probability of intercept

HPIB Hewlett-Packard Interface bus

HPIR high-probability-of-intercept receiver

HPL ¹Hewlett-Packard Language, ²high power laser

HPLJ Hewlett-Packard Laser Jet

HPM high power microwave

HPMSK high priority mission support kit

HPO hourly post flight

HPOT heliopotentiometer

HPPA Hewlett-Packard Precision Architecture

HPPI high performance parallel interface

HPR high performance routing [IBM]

HPRF [FM 101-5-1] high pulse repetition frequency

HPS human reliability program status

HPSC High Performance Scientific Computing Research System

HPSCI House Permenant Select Committee

HPSIP Hazard Prediction System Integration Program

HPSP Health Profession Scholarship Program

HPSS Helmet Position Sensing System

HPT ¹high-payoff target, ²high priority target, ³horizontal plot table, ⁴height-pressure test, ⁵high power transmission set, ⁶high pressure turbine

HPTL high pay-off target list

HPTS [AR 310-50] high-performance third stage (SPARTAN)

HPU ¹hydraulic power unit, ²[AR 310-50] hydraulic pumping unit

HPUX Hewlett-Packard UNIX

HPW High Performance Workstation [Sun]

HQ ¹headquarters, ²[JP 1-02] HAVE QUICK

HQ ACC Headquarters, Air Combat Command

HQ AETC Headquarters, Air Education and Training Command

HQ AFC⁴A Headquarters, Air Force Command, Control, Communication and Computer Agency

HQ AFCA Headquarters, Air Force Communication Agency

HQ AFCC Headquarters, Air Force Communications Command

HQ AFCEE Headquarters, Air Force Center For Environmental Excellence

HQ AFCESA Headquarters, Air Force Civil Engineer Support Agency

HQ AFIC Headquarters, Air Force Intelligence Command

HQ AFISA Headquarters, Air Force Intelligence Support Agency

HQ AFLC Headquarters, Air Force Logistics Command

HQ AFMC Headquarters, Air Force Materiel Command

HQ AFMPC Headquarters, Air Force Military Personnel Centers

HQ AFRES Headquarters, Air Force Reserve

HQ AFROTC Headquarters, Air Force Reserve Officers

HQ AFSC Headquarters, Air Force Systems Command

HQ AFSPA Headquarters, Air Force Security Police Agency

HQ AFSPC Headquarters, Air Force Space Command

HQ AIA Headquarters, Air Intelligence Agency

HQ AMC Headquarters, Army Materiel Command

HQ ARPC/DSMR Headquarters, Air Reserve Personnel Center/DSMR

HQ ATC Headquarters, Air Training Command

HQ DA Headquarters, Department of the Army

HQ ESC Headquarters, Electronic System Center

HQ MAC Headquarters, Military Airlift Command

HQ MC Headquarters, Marine Corps

HQ NAVAIR Headquarters, Naval Air System Command

HQ PACAF Headquarters, Pacific Air Force

HQ SAC Headquarters, Strategic Air Command

HQ TAC Headquarters, Tactical Air Command

HQ USAF Headquarters, United States Air Force

HQCOMDT [JP 1-02] headquarters commandant

HQCS [AR 310-50] Heraldic Quality Control System

HQDA Headquarters, Department of the Army

HQDA DSS Headquarters, Department of the Army Decision Support System

HQFM-net [JP 1-02] HAVE QUICK frequency modulation net

HQFMT-net [JP 1-02] HAVE QUICK frequency modulation training net

HQMC Headquarters, Marine Corps

HQS high quality screening [Linotype-Hell]

hr hour

HR ¹House of Representatives, ²hazard report, ³[AR 310-50] hand receipt

HR&ED Human Research and Engineering Directorate (Army)

HRB hazard review board

HRC human resource centers

HRCS Hazard Response Computer System (Titan II)

HRD ¹high rate discharge, ²human resource development, ³[TTPIO-ABCS] high resolution display

HRDC human resources development council

HRED Human Research and Engineering Directorate

HRG high resolution graphics

HRGM high-resolution ground map

HRI horizontal requirements integration

HRIR high resolution infrared radiometer

HRIS Human Resource Information System

HRL horizontal reference line

HRMS Human Resource Management System

HRO [AR 310-50] housing referral office

HRP ¹high risk personnel, ²[AR 310-50] highway regulating point, ³[AR 310-50] holding and reconsignment point

HRS ¹high resolution scenario, ²[JP 1-02] horizon reference system, ³[AR 310-50] housing referral service

HRT [JP 1-02] hostage rescue team

HRTF head related transfer function

HRU high risk units

HS ¹half subtractor, ²high speed, ³hardstanding, ⁴USN helicopter anti-submarine warfare squadron, ⁵home station, ⁶[JP 1-02] homing single-unit, ⁷[JP 1-02] helicopter antisubmarine warfare squadron (Navy), ⁸[AR 310-50] high school

HSA [AR 310-50] health service area

HSAAP [AR 310-50] Holston Army Ammunition Plant

HSB ¹hue, saturation, brightness (color model), ²high speed bus, ³[JP 1-02] high speed boat

HSC ¹[Army] Health Services Command, ²high speed channel, ³[USAF] Human Systems Center

HSCDM [JP 1-02] high speed cable driver modem

HSCP [AR 310-50] high-speed card punch

HSCR [AR 310-50] high-speed card reader

HSCT high-speed commercial transport

HSD ¹high-speed data, ²high-speed displacement, ³horizontal situation display, ⁴historical schedule database, ⁵Human Systems Division (Air Force), ⁶[JP 2-01.2] HUMINT support detachment

HSDA high-speed data acquisition

HSDB high speed data bus

HSDG high school diploma graduate

HSE ¹headquarters support element, ²[JP 2-01.2] HUMINT support element

HSEP [JP 1-02] Hospital Surgical Expansion Package (USAF)

HSFB high speed fleet broadcast

HSG high school graduate

HSGM [AR 310-50] honorary sergeant major of the regiment

HSGT high-speed ground transportation

HSI ¹horizontal situation indicator, ²host speed interface, ³hue, saturation, intensity, ⁴human systems integration, ⁵human system interface

HSIC high speed integrated circuit

HSIP human system integration plan

HSL ¹[USN] light helicopter antisubmarine squadron, ²[AR 310-50] health service laboratory

HSLA ¹high speed line adapter, ²high strength, low alloy

HSLCM high speed line control module

HSLS [JP 4-02.1] health service logistics support

HSM ¹high-speed memory, ²hierarchical storage management, ³hermetically sealed microcircuit, ⁴[JP 1-0] Humanitarian Service Medal

HSMI health services management inspectors (USAF)

HSMS Hazardous Substance Management System

HSOK Hunter-Standoff Killer

HSP high-speed printer

HSPR [JP 1-02] high speed pulse restorer

HSR ¹high-speed reader, ²high speed research, ³[AR 310-50] health service region

HSRO high-speed repetitive operation

HSRP headquarters systems replacement program (CG)

HSS ¹high-speed storage, ²helicopter support ship, ³hyperspectral system, ⁴[JP 1-02] health service support

HSSA health service support areas

HSSDB [JP 1-02] high speed serial data buffer

HSSI high speed serial interface

HST ¹Hawaiian Standard Time, ²hypersonic transport, ³high speed technology [U.S. Robotics], ⁴[JP 1-02] helicopter support team

HSTISA host/tenant interservice support agreement (PACAF)

HSTP hardware and software turnover plan

HSTSP hardware and software turnover support plan

HSTTY high speed teletypewriter

HSV ¹Hunter Surrogate Vehicle, ²hue saturation value

HSWA hazardous and solid waste amendment

HT ¹high tension(as in electric power transmission), ²horizontal tabulation, ³horsepower tonnage, ⁴helicopter training, ⁵heavy (satellite ground) terminal, ⁶high temperature, ⁷[FM 101-5-1] blister agent (mustard T-mixture), ⁸[JP 1-02] hatch team

HTA heavier than air

HTERRCAS [JP 1-03.17] hostile terrorist casualty

HTH [JP 4-06] high test hypochlorite

HTI ¹horizontal technology integration, ²high temperature incendiary

HTIP Horizontal Technology Integration Plan (Army)

HTK hard-target kill

HTKP hard-target kill probability

HTL high-threshold logic

HTLD high-technology light division (Army)

HTM ¹high temperature, ²hypotheses testing model

HTML HyperText Mark-up Language

HTML+ the latest version of HTML

HTO ¹high temperature oxidation, ²[AR 310-50] hospital transfer order

HTOVL horizontal take-off, vertical landing

HTP [AR 310-50] hardness test plan

HTPB hydroxyl terminated polybutadiene

HTR heater

HTS ¹high tensile strength, ²HARM Targeting System, ³high temperature semiconductors, ⁴hazard tracking system

HTSA host-tenant support agreement

HTSC high-temperature superconductor

HTSF hard target smart fuze

HTSUS Harmonized Tariff Schedule of the United States

HTTB high technology test bed

HTTL high-power transistor-transistor logic

HTTP ¹HyperText transmission protocol, ²HyperText transport protocol

HTTP-NG HTTP next Generation

HTU ¹hand held terminal unit (CHS-2), ²heat transfer unit

HU [FM 101-5-1] Hungary, [JP 1-02] hospital unit

HUC human use committee

HUD ¹heads-up display, ²[Department of] Housing and Urban Development

HUDWAC heads-up display weapons-aiming computer

HUDWASS head-up display weapon aiming sub-system

HUMINT ¹human resources intelligence, ²[FM101-5-1] human intelligence

HUMRRO Human Resources Research Organization

HUMS health and usage monitoring system

HUPS H6000 Utilization Project System

HUR heat up rate

HUREVAC hurricane evacuation

HURTS Honeywell 6000 Reporting System

HUS [JP 1-02] hardened unique storage

HUSFU hard summary fault unit

HUT Hopkins Ultraviolet Telescope

HUTE hard user terminal element

HV ¹hand [operated] valve, ²hardware virtualizer, ³high voltage, ⁴high velocity, ⁵[AR 310-50] hyper-velocity

HVA high value unit

HVAA high value airborne assets

HVAC ¹heating, ventilating, and air conditioning, ²high vacuum, ³high voltage actuator

HVAP [AR 310-50] high-velocity armor-piercing

HVAP-T [AR 310-50] hyper-velocity armor-piercing tracer

HVAPDS [AR 310-50] high-velocity, armor-piercing, discarding sabot

HVAR high-velocity aircraft rocket

HVAT high-velocity antitank

HVDC high voltage direct current

HVDF high and very high frequency direction finder

HVDP [AR 310-50] heavy drop

HVHMD holographic visor helmet mounted display

HVIT high volume information transfer

HVM hyper-velocity missile

HVP ¹high video pass, ²horizontal and vertical position

HVR high-voltage regulator

HVSD high value site defense

HVT high-value target

HVTA high value target acquisition

HVTIP high volume transaction interface Package

HVTL high value target list

HVTP-T [AR 310-50] hyper-velocity target practice tracer

HVTU high voltage transformer unit

HVU high value unit

HVY heavy

HW ¹half wave, ²hardware

HW BOSS hazardous waste base operation support systems

HW/SW hardware/software

HW/SWIL hardware/software in the loop

HWAAP [AR 310-50] Hawthorne Army Ammunition Plant

HWCI ¹hardware configuration item, ²hardware critical item

HWCP hardware code page

HWD height-width-depth

HWIL hardware-in-the-loop

HWIL/SWIL hardware/software in the loop

HWL hazard warning label

HWM [JP 1-02] high water mark

HWMP hazardous waste management plan

HX heat exchanger

hxwxl height by width by length

HY ¹heavy, ²high yield

HYAPP [AR 310-50] Hay Army Ammunition Plant

HYBALL hybrid analog logic language

HYCOL hybrid computer link

HYCOTRAN hybrid computer translator

HYDAC hybrid digital analog computer

HYDAPT hybrid digital-analog and pulse time

HYEX hydraulic excavator

HYPER ISC hyperchannel inter-systems communication

hyper-g a distributed HyperText system mostly popular in Europe

HyperCard a personal hypermedia/ multimedia creation system for use on Apple Computers

hyperlinks connections between hypermedia or HyperText documents and other media

hypermedia HyperText that includes or links to other forms of media

HyperText text that, when selected, has the ability to present connected documents

HySTP hypervelocity system technology program

HYTELNET a HyperText-browser for TELNET-accessible sites

HYTRESS high test recorder and simulator system

Hz hertz

HZMP horizontal impulse