McCain's plane set fire to USS Forrestal, July 29, 1967, Yankee Station, off Vietnam:

    Lt. Cmdr. Robert "Bo" Browning one of the pilots due for launch with many others, he was seated in the cockpit of his fueled and armed Skyhawk; the plane was spotted way aft, to port. Lt. Cmdr. John S. McCain III said later he heard a "whooshy" sound then a "low-order explosion" in front of him. Suddenly, two A-4s ahead of his plane were engulfed in flaming jet fuel — JP-5 — spewed from them. A bomb dropped to the deck and rolled about six feet and came to rest in a pool of burning fuel.

    The awful conflagration, which was to leave 132 Forrestal crewmen dead, 62 more injured and two missing and presumed dead, had begun.

    As the searing flames, fed by the spreading JP-5, spread aft and began to eat at the aircraft spotted around the deck, Lt. Cmdr. Browning escaped from his plane. He ducked under the tails of two Skyhawks spotted alongside his and ran up the flight deck toward the island area. Twice, explosions knocked him off balance. But he made it.

    The fire soon enveloped all the aircraft in its wake. It spread to the fantail, to decks below. Bombs and ammunition were touched off in the midst of early fire-fighting efforts. Black, acrid smoke boiled into the sky. Other ships on Yankee Station sped to the aid of the stricken carrier.

The "wooshy" sounds were determined later to be missiles from McCain's plain which had somehow fired themselves. With the aircraft all crowded for takeoff on the stern....

None of this is say or imply that McCain did this deliberately!