Rafting-a-Mark-V.-Tank-over-a-pontoon-raft-stiffened-with-Inglis-Tubular-Bridge.-IWM-e1421789417951 Rafting a Mark V. Tank over a pontoon raft stiffened with Inglis Tubular Bridge. IWM Rafting a Mark V. Tank over a pontoon raft stiffened with Inglis Tubular Bridge. IWM