e/AN/APQ-13

Information
has gloss	eng: AN/APQ-13 radars were a ground scanning radar developed by Bell Laboratories, Western Electric, and MIT as an improved model of the airborne H2X radar. They were used on B-29's during World War II in the Pacific theater for high altitude area bombing, search and navigation. Computation for bombing could be performed by an impact predictor. A range unit permitted a high degree of accuracy in locating beacons. The radome was carried on the aircraft belly between the bomb bays and was partially retractable on early models. The radar operated at a frequency of 9375 ± 45 megahertz and used a superheterodyne receiver.
lexicalization	eng: AN/APQ-13
instance of	(noun) measuring instrument in which the echo of a pulse of microwave radiation is used to detect and locate distant objects radio detection and ranging, radiolocation, radar, microwave radar