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navigation acronyms, abbreviations and definitions - International ...

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HIPS Highly-Interactive Problem Solver (EUROCONTROL)<br />

Software for real-time air traffic management.<br />

HIRF high intensity radio frequency<br />

HIRL high intensity runway lighting<br />

HIRLAM High Resolution Limited Area Model (to estimate tropospheric delay)<br />

HISL high-intensity strobe light<br />

HITL hardware-in-the-loop<br />

HL heading line (radar)<br />

HLD high level definition (document)<br />

HLG High Level Group<br />

HLS helicopter l<strong>and</strong>ing site<br />

HMAC Hazardous Materials Advisory Council<br />

HMD helmet-mounted display<br />

HMI hazardously misleading information<br />

HMI human-machine interface/interaction<br />

HMLR Her Majesty’s L<strong>and</strong> Registry (UK)<br />

HMR helicopter main route<br />

Hmr homer<br />

HMSD helmet-mounted sight display<br />

HMU health monitoring unit<br />

HMU height-monitoring unit<br />

Ground-based unit for very accurately checking on aircraft height.<br />

HNS Hazardous <strong>and</strong> Noxious Substances (IMO Protocol)<br />

HNSE horizontal <strong>navigation</strong> system error<br />

HO height observed<br />

HO hydrographic office<br />

HOB Hydrographic Office Board (UK)<br />

HoE height of eye<br />

HOL high order language<br />

HOMER homing marine environmental recorder<br />

Hon FRIN Honorary Fellow of the Royal Institute of Navigation<br />

HOT High Occupancy/Toll (eg lanes on motorway)<br />

HOTAS h<strong>and</strong>s on throttle <strong>and</strong> stick (ergonomic cockpit technology)<br />

HOW h<strong>and</strong>-over word<br />

HP High Precision (GLONASS military service)<br />

HP high pressure<br />

HP holding point<br />

hPa hectopascal<br />

Supersedes the millibar. 1mB = 100 pascals = 1 hPa.<br />

HPA high power amplifier<br />

HPC high-performance computing<br />

65<br />

March 2012

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