The OA-4M Skyhawk, operated by Marine Headquarters & Maintenance Squadron 32 (H&MS-32), represented a specialized evolution of the venerable Douglas A-4 series, tailored for forward air control (FAC) and training missions. Developed in the late 1970s, the OA-4M was converted from existing A-4M airframes, combining the proven agility of the Skyhawk with advanced avionics suited for its observation and coordination role.

Powered by the reliable Pratt & Whitney J52-P-408 turbojet engine, the OA-4M maintained excellent performance, achieving a top speed of approximately 673 mph (1,083 km/h). Though primarily assigned to non-combat roles, it retained full combat capability, with five external hardpoints allowing carriage of up to 9,900 lbs (4,490 kg) of ordnance, including rockets, bombs, and air-to-ground missiles if necessary.

H&MS-32, tasked with supporting Marine aircraft readiness and training, employed the OA-4M extensively for FAC training, simulating real-world battlefield conditions to prepare Marine aviators for close air support coordination. The two-seat configuration allowed instructors and trainees to operate together, enhancing training efficiency and safety.

Key features and upgrades of the OA-4M included:

Tandem dual-seat configuration for instructor and trainee.

Advanced avionics suite housed in the dorsal "hump", optimized for FAC operations.

Upgraded cockpit featuring a heads-up display (HUD), modernized navigation, and communication systems.

Retained survivability enhancements: armor protection and countermeasure systems.

Powerful J52-P-408 engine for solid performance during both training and potential combat missions.

Controls:
AG1: Jettison fuel tank
AG2: Jettison Bombs
AG7: Extend tail hook
AG8: Light
VTOL: Flaps
Trim: Elevator Trim