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Inventories (Tables)
6 Months Ended
Nov. 30, 2020
Inventories  
Summary of inventories

November 30, 

    

May 31, 

    

2020

2020

Aircraft and engine parts, components and finished goods

$

521.9

$

556.6

Raw materials and parts

 

41.1

 

45.9

Work-in-process

22.0

20.6

$

585.0

$

623.1