HALPilot
Usually, I don’t give a flying fygge about the occasional 'typo' in this medium.
But, of the two words you misspelt, one was the noun and adjective of my domicile; and the other was the instrument that is the subject of this thread.
In my experience, those who dwell in the home of the brave and the land of the free, usually take umbrage at other, lesser mortals who misspell any word associated with their homeland.
And so it is with us folk who dwell under Capricorn, particularly when said umbrage is caused by those who are quick to chide others for the same offence.
Sorry old son. Like the better pilots, air traffickers and lawyers I know, I just can't help myself sometimes when it comes to insisting on accuracy.