Initialism of radioisotope thermoelectric generator (a device that generates electricity from the natural decay of radioactive material). / (aviation) Abbreviation of radiotelegraph.

Initialism of Radeon Technology Group (a division of Advanced Micro Devices (AMD), who produces a brand of computer products). / Initialism of Radio Télévision Guinéenne (a public broadcaster in Guinea).

plural of RTA

(automotive) Initialism of ramp travel index. (a measure of offroad performance) / (logistics) Initialism of returnable transport item. / Initialism of resistance to interrogation.

plural of RTI

(space flight) Initialism of return to launch site.

(computing) Initialism of rational team concert. / (computing) Initialism of real-time computing. / (computing) Initialism of real-time control. / (electronics) Initialism of real-time clock.

(US, military) Initialism of Recruit Training Command: a unit within the United States Navy responsible for conducting the initial orientation and indoctrination of incoming recruits, located at Naval Station Great Lakes, Illinois.

Initialism of return the favour. / (aviation) Initialism of return to flight.

Initialism of real time factor. / (computing) Initialism of Rich Text Format. / Initialism of residential treatment facility.