'propellor' is correct and usable in written English.
You can use it as a noun, to refer to the blades on a rotating shaft which provide propulsion, as in this example sentence: “The plane is powered by two large propellers.”.
Exact(11)
Not just the fatally flawed Comet 1, the hopelessly timed Bristol Brabazon (a propellor plane launched by Britain just as the jet age dawned) and the terminally unviable Concorde.
Hotels make him feel safe from the chaos outside while anything above a propellor plane makes him feel uneasy.
12.28pm: "But the third engineer promised to show me the propellor shaft!" 12.27pm: Cut to some hippies.
The twisted 221 propellor head is cemented to the ground, surrounded by pebbles carrying the name of the dead.
Tell me, screaming cagoule boy, ain't that better than seeing the propellor shaft?
In the painting I showed it by a propellor, a ladder and the French and Catalan flags.
In February, the Seed Ambassadors dropping out of the sky like propellor'd sycamore seeds from the heavens to germinate inspiration; Bernard from the Biodynamic Association helping to dig our first cow pat pit (currently inhabited by hibernating newts) and sow the beautiful 'seed' of a line.
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The link was cut at the beginning of the Yugoslav wars in 1991 Vinkovci was a front-line town and was shelled by the Serbs and not re-established in December 2009.The daily flight between Belgrade and Sarajevo takes 45 minutes to cover the 200-odd kilometres; it would be quicker in a plane that was not propellor-powered.
And on February 13th a faulty propellor-shaft had to be mended.Her escort ships also had troubles, not least an unresponsive air-defence system.
Some of the propellors, often the first items to be stolen, are made of phosphor bronze scrap metal, valued at over £2,000 per tonne.
Two world wars and changing holiday habits had brought this golden age to an end – to that extent, I lived among ghosts – but in the late 1950s the Clyde could still boast a fleet that contained eight or nine elegant ships driven by paddles or turbine-powered propellors.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com