Abbreviations and Acronyms

A

ACARE
Advisory Council for Aeronautics Research in Europe
ACTE
adaptive compliant trailing edge
ADP
aerodynamic design point
AFRL
Air Force Research Laboratory
AIA
Aerospace Industry Association
AIAA
American Institute of Aeronautics and Astronautics
AIC
aviation‐induced cloudiness
AHEAD
Advanced Hybrid Engines for Aircraft Development
AJF
alternative jet fuel
AoA
angle of attack
APU
auxiliary power unit
AR
aspect ratio
ASME
American Society of Mechanical Engineers
ASTM
American Society for Testing and Materials
ATM
air traffic management
ATP
advanced turboprop
ATRA
advanced technology research aircraft

B

BBSAN
broadband shock‐associated noise
BF
block fuel
BFL
balanced field length
BLC
boundary layer control
BLI
boundary layer ingestion
BPF
blade passing frequency
BPR
bypass ratio
BTH
biomass to hydrogen
BTL
biomass to liquid
BWB
blended wing body

C

CAAFI (US)
Commercial Aviation Alternative Fuels Initiative
CAEP
Committee on Aviation Environmental Protection
CC
circulation control
CCD
climb‐cruise‐descent
CD
convergent‐divergent
CFC
chlorofluorocarbons
CFD
computational fluid dynamics
CFR
compact fusion reactor
CJ
Chapman‐Jouguet
CLEEN
continuous lower emissions, energy and noise
CNEL
community noise equivalent level
CNG
compressed natural gas
CO
carbon monoxide
CPS
cycles per second (Hz)
CROR
counter‐rotating open rotor
CSP
concentrating solar power
CTL
coal to liquid

D

DD
drag divergence

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