Sailed is already the past tense form of 'sail'.
The verb is sailed, and the tense is past tense. The subject is steamer, sailed is what the steamer did, and "yesterday" confirms that it took place in the past.
The past tense of sail is sailed.
The past tense is had.
The past tense of have is had.
have in past tense is had
Sailed is a verb. It is the past tense of the verb sail.
The past tense of 'spell' is 'spelled'. 'Spelt' is also used in British English.
The past tense of sail is sailed.
You spell the past tense of settle like this: Settled
The past tense is fared.
The past tense is gardened.
The past tense is gassed.