While the various improvements on the second Double Fairlie locomotive proved to be effective .
The engine performed well , Double Fairlie still offered cramped crew space and was therefore equally unpopular with enginemen , who considered Double Fairlie a clumsy locomotive to work .
While the various improvements on the second Double Fairlie locomotive proved to be effective and the engine performed well , it still offered cramped crew space and was therefore equally unpopular with enginemen , who considered it a clumsy locomotive to work .