<P> The Japanese Government regrets to have to notify hereby the American Government that in view of the attitude of the American Government it cannot but consider that it is impossible to reach an agreement through further negotiations . </P> <P> The first attack wave of 183 planes was launched north of Oahu, led by Commander Mitsuo Fuchida . Six planes failed to launch due to technical difficulties . It included: </P> <Ul> <Li> 1st Group (targets: battleships and aircraft carriers) <Ul> <Li> 49 Nakajima B5N Kate bombers armed with 800 kg (1760 lb) armor - piercing bombs, organized in four sections (1 failed to launch) </Li> <Li> 40 B5N bombers armed with Type 91 torpedoes, also in four sections </Li> </Ul> </Li> <Li> 2nd Group--(targets: Ford Island and Wheeler Field) <Ul> <Li> 51 Aichi D3A Val dive bombers armed with 550 lb (249 kg) general - purpose bombs (3 failed to launch) </Li> </Ul> </Li> <Li> 3rd Group--(targets: aircraft at Ford Island, Hickam Field, Wheeler Field, Barber's Point, Kaneohe) <Ul> <Li> 43 Mitsubishi A6M "Zero" fighters for air control and strafing (2 failed to launch) </Li> </Ul> </Li> </Ul> <Li> 1st Group (targets: battleships and aircraft carriers) <Ul> <Li> 49 Nakajima B5N Kate bombers armed with 800 kg (1760 lb) armor - piercing bombs, organized in four sections (1 failed to launch) </Li> <Li> 40 B5N bombers armed with Type 91 torpedoes, also in four sections </Li> </Ul> </Li>

What kind of bomb was dropped on pearl harbor
find me the text answering this question