High above [Tsili-Tsili Airfield], the Oscars lagged behind the seven [Ki-48 "Lily"] bombers. Too late, they charged in to break up the intercepting Airacobras. Captain Shigeki Namba, leading one of the cover elements, later lamented that “one by one the Ki-48s were shot down in flames.”The chapel was the only structure seriously damaged by the Japanese attack.
Two of the doomed bomber crews attempted a taiatari, or suicide dive. Literally translated as “body crashing,” taiatari was the honorable choice for a crew whose plane was crippled over the target. Bailing out and becoming a prisoner, akin to surrendering, was anathema to those who subscribed to the Bushido philosophy of an honorable death in combat. Fliers who deliberately chose to crash into an enemy ship, plane, or structure were therefore hailed as heroes in Japan. On this day, at least one taiatari succeeded: a falling bomber smashed directly into the chapel, killing the chaplain and six or seven men inside.
捻り込み hineri-komi 'twisting entering' (from Target: Rabaul: The Allied Siege of Japan's Most Infamous Stronghold, March 1943–August 1945, by Bruce Gamble [Zenith, 2013], Kindle Loc. 1608-1621):
But the bomber continued to fly on four good engines. The bad news was that it still had to cross five hundred miles of ocean before reaching safety. Disoriented and losing blood, sometimes in agony, at other times semiconscious, Zeamer grimly held the controls as he headed toward New Guinea. It was now about 0900, the sun still relatively low in the sky. The remaining Zeros stunted around the damaged B-17 in what the crew later described as “a Lufbery,” a compelling comment which indicates that the Japanese employed a maneuver known as hineri-komi (literally, “twisting in”). The tactic involved multiple fighters in a looping tail chase.Hinerite (捻り手 'twisting techniques') account for nearly a quarter of the 82 officially recognized kimarite ('deciding techniques') in Japanese sumo.
Upon seeing the maneuver for the first time, most Allied pilots called it a “Lufbery Circle,” referring to a World War I tactic named for French ace Raoul Lufbery. The Japanese adaptation puzzled Allied airmen, for it often seemed that they were merely performing the maneuver to taunt their enemy or show off. Perhaps, in the absence of Oki, his subordinates resorted to the hineri-komi as a fallback. Periodically, one of them would peel away from the circle and commence a gunnery run on the B-17, usually pressing in close. But the crew of Old 666 kept up their defensive fire, and the slicing attacks caused no additional damage.
After forty-five minutes, the Hamps [= Zekes/Zeros] turned away and headed back to Buka. American gunners had hit three more, bringing the total number of damaged fighters to four. And thanks to the preservation of the kodochosho [行動調書 koudouchousho 'action records'?], some interesting statistics are available. Air Group 251’s seven participating Zeros expended about five hundred 20mm shells and more than seven hundred 7.7mm rounds during this intercept. Curiously, however, while Yamamoto emptied his ammunition canisters at the bomber, Koichi Terada, a pilot of the same rank, apparently never fired a shot.