What does Harp stand for?

Harper's South Carolina Equity Reports - A publication (DLA)

Harper's South Carolina Law Reports - 1823-30 - A publication (DLA)

Harpocration - Classical studies (OCD)

Harpsichordist (SAUS)

Halpern's AntiRADAR Point

Harpoon (WDAA)

Harpsichord (WDAA)

Hazard Assessment of Rocket Propellants

Health Activities Recommendation Panel (SAUS)

Health Administration Responsibility Project (ADWA)

Health and Air Research Program (SAUO)

Heater Above Reheat Point (SAUO)

Heating, Air Conditioning, Refrigeration, Plumbing (ADA)

Heimlich-Armstrong-Rieveschl-Patrick - Heart pump for aerospace use

Helicopter Advanced Rotor Program (SAUS)

Hermite AcceleratoR Pipe

High-Altitude Reconnaissance Platform

High Altitude Reconnaissance Project (ACAE)

High-Altitude Relay Point

High Altitude Release Point (SAUO)

High-Altitude Release Point (SAUS)

High-Altitude Research Probe (IAA)

High Altitude Research Problem (SAUO)

High Altitude Research Program (SAUO)

High-Altitude Research Program - or Project - Military

High Altitude Research Programme (SAUS)

High-Altitude Research Project (SAUS)

High-Altitude Research Projectile (SAUS)

High-Altitude Rocket Probe - Army

High Angle Attack Research Program (SAUS)

Hitachi Arithmetic Processor - Computer science (IEEE)

Holding and Reconsignment Point (IAA)

Homeless and At-Risk Population (DMAA)

Honeywell Acoustic Research Program (SAUO)

Honeywell Acoustic Research Project (SAUO)

Hughes Advanced Rotor Program (SAUS)

Hybrid Automated Reliability Predictor

Hyperbolic Analyzer Retarding Potential (SAUS)