Complex sentence: After experiments with a Sherman tank and a Canadian Ram tank, Churchill tanks were selected because their side doors made access easier and had their turret baskets and much of the equipment in the hull removed to make room for engineers and their stores.
Split into simpler sentences: After experiments with a Sherman tank and a Canadian Ram tank, Churchill tanks were used because their side doors made access easier. Turret baskets and much of the equipment in the hull removed to make room for engineers and their stores.