Good Yankee soldiers overturned plot primarily endangering aircraft (9)

'aircraft' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see a link between them that I can't see?

'good yankee soldiers overturned plot primarily endangering' is the wordplay.
'good yankee' becomes 'gy' (this might be a standard abbreviation I've not previously seen).
'soldiers' becomes 'OR' (military abbreviation for other ranks).
'overturned' shows that the letters should be reversed in order.
'plot' becomes 'plan' (plot can mean to conspire or plan).
'primarily' suggests taking the first letters.
The initial letter of 'endangering' is 'e'.
'or' back-to-front is 'ro'.
'gy'+'ro'+'plan'+'e'='GYROPLANE'

Can you help me to learn more?