Automatically open DevTools in development mode

open burning and open detonation (OBOD) (= open-pit)

Atitude Mode (A Mode / Atti Mode )

integrated mine action and development (linking mine action and development)

open country / open ground

automatically cued target detecting system

automatically operated

Attempt to flash the board automatically

Automatically loaded previous log file 1

configurator automatically tries to connect when new port is detected

allow Wi-Fi enabled hardware to connect to the home network automatically

acrobatic mode (ACRO mode)

positioning mode (P Mode)

sport mode (S Mode)

attitude mode (ATTI mode)

RFMD (RF mode, Radio frequency mode)

When you enabled 3D mode in your flight controller, make sure the ESCs are also set up for 3D mode, otherwise the motors might go off with full power

Cooperative Research and Development Agreements (CRADA)

crash development

development and maintenance of morale

development of military capability

development of the armed forces

force development

integrated scenario development

Joint Capabilities Integration and Development System (JCIDS)

military development

obstacle development

operational development force

research and development (R&D)

research, development, test, and evaluation (RDT&E)

system development

topographic-database development

US Agency for International Development