Swanage Railway DMU Action; Class 117 + Class 121 "bubblecar" DMU at Swanage and Corfe; 8,9&10Aug'23

Swanage Railway DMU Action
8th, 9th & 10th August 2023
With the 2023 season's Swanage to Wareham services in the hands of DMUs we catch the late afternoon departure from Swanage (filmed across two days) then catch a shunting move at Corfe Castle to reform the set into Class 117 units only.
Featuring Class 117s Nos W51388, W59486 & W51356 plus Class 121 "bubblecar" W55028.

[@grayman999]

Why can’t the 121 just be added to the 117 DMU set is there an issue here I don’t understand? Brilliant catch mind you 😊