RedactedNarrative: V1 RETURNING TO HIS SLIP AT STOCK ISLAND VILLAGE MARINA LOST ENGINE POWER.  V1 UTILIZED HIS INFLATABLE DINGY WITH A HIP TOW ATTEMPTING TO NAVIGATE TO SLIP.  V1 LOST CONTROL, engine cut off,  AND STRUCK V2 MOORED AT THE DOCK OF STOCK ISLAND VILLAGE MARINA FOUR TIMES.