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Jukka
11-05-2018, 04:34 AM
699 km/h reached in 1943.

https://oldmachinepress.com/2012/11/03/kawasaki-ki-78-ken-iii/

Colbourne
11-05-2018, 06:29 AM
699 km/h reached in 1943.

https://oldmachinepress.com/2012/11/03/kawasaki-ki-78-ken-iii/

Shame it was destroyed so pointlessly after the war.

Jukka
11-05-2018, 01:05 PM
Shame it was destroyed so pointlessly after the war.

Also noteworthy that the aimed top speed was 850 km/h ( 528 mph ).

Had they made it using this; http://www.dbknews.com/2018/02/16/umd-professors-create-super-wood-a-material-stronger-than-most-steels/

They could have made it under 1500 kg.