Initially placed in service on main line duties, they were soon relegated to less important jobs.

Yang Li was not a frustrated office clerk dreaming of line duty.

He returned to front line duty, this time with the 3.

On 21 November, he was wounded by shrapnel and removed from front line duty.

By late 1942, all I-15s and I-15bis' were relegated to second line duties.

They are however not being used for front line duty anymore and are replaced by metal magazines.

I'm cleared for line duty," he finished with a grin.

You go down there and give them three months of hard work; then I'll reconsider your request for line duty.

The majority of the class however settled down to suburban and branch line duties.

By 1930 the class were relegated from main line duties.