I remember the order coming down during Lam Sahn 719 for
tankers to be inside the tanks.Those rpg’s would do a number
On ‘em.Saw many with the top of the hull flapping when they
were being retreived
They also ordered everyone to wear flak jackets and pots
When I went back on my second tour, 1967, the grunts rode on top. The only people who rode with their legs inside were gunners on a gun track with pots and flack jackets. Not that they helped much if you got in the way of the splash from an RPG.