HO F5A / F5B Locomotive Set with DCC & Sound, PRR #9551A, #9551B (ATHG19684)

HO Scale Pennsylvania Railroad F5A and F5B Locomotive Set with DCC & Sound is a two‑unit pairing that captures PRR's late‑1940s EMD F‑unit power on your HO layout. The A units feature period‑accurate details such as dynamic brakes, nose and rear lift lugs, dual single‑note air horns, back‑up lights, train phone antennas, and a passenger pilot, while the B unit mirrors the exterior to form a convincing lashup. Externally similar to the F3 Phase IV, the F5 prototypes used heavier D27 traction motors, a detail reflected in the model set to recreate authentic performance and appearance.

Sound‑equipped and DCC‑ready, these locomotives include onboard DCC decoders with SoundTraxx Tsunami2 and dual cube speakers for realistic engine, horn, and bell sounds that operate in both DC and DCC. They boast LED lighting with directional control, see‑through cab windows and a full cab interior, etched metal fan grilles, a heavy die‑cast frame for traction, and body‑mounted, McHenry scale knuckle couplers that are Kadee compatible. A Quick Plug 21‑pin DCC interface simplifies installation, and the model rides on RP25 wheels for reliable pickup on HO track. Minimum radius is 18 inches, with 22 inches or larger recommended for best performance, and the set supports multi‑unit lashups and CV customization for tailored operation.