In May, the Materiel Command issued a Request for Quotation (RFQ) for a radar fire control
system for the F-89, a two-place, all-weather interceptor being built by Northrop.
The launch customer was Venezuela, which employs Mirador with the same company's Flycatcher Mk 2 and upgraded Mk 1 radar fire control
systems, Otobreda 40 mm gun mounts and Rafael Barak vertical-launch missiles.
The picture is further complicated by the fact that an Apache Longbow squadron could combine helicopters with the full Longbow radar fire control
system and other non-radar equipped AH-64Ds with the Longbow Hellfire RF (Radio Frequency) guided missile taking targeting information from a Longbow radar fire control