Walthers Proto 920-42539 HO Scale EMD FP7 & F7B Diesel Pennsylvania Brunswick PRR 9854A/9854B Sound Scenery Kit Scaleable Speed Stabilization(BEMF) optimized for

Scaleable Speed Stabilization(BEMF) optimized for sound operationSoundFX does not require an external rate sensor to vary workload

Castings include a base pin to allow easy attachment to layout

The EPO foam construction provides a light weight yet resilient airframe that will make your adrenaline fueled dog fights genuine fun

and low CG give the TRX-4M impressive capability everywhere it goes

Walthers Proto 920-42539 HO Scale EMD FP7 & F7B Diesel Pennsylvania Brunswick PRR 9854A/9854B Sound Scenery Kit Scaleable Speed Stabilization(BEMF) optimized forWalthers Proto 920 42539 HO Scale EMD FP7 & F7B Diesel Pennsylvania Brunswick PRR 9854A 9854B Sound Designed for dual service, the Pennsylvania often paired its FP7 (EFH 15) diesels with F7B (H 15) boosters. Geared for 77mph, these units were equally at home with fast freights such as Merchandise Service trains, and could pinch hit in seasonal passenger and mail service whenever the need arose. A great layout ready addition to your roster. FEATURES: