Which preposition to use with martingales

into Occurrences 1%

I felt no uneasiness at the proximity of these two cruisers, for I knew a boat could not live,our ship fairly pitching her martingale into the water at her anchors.

of Occurrences 1%

I have been under the martingale of the Frenchman, and you see that I am here.

Which preposition to use with  martingales