load factor vs ratio

load factor and ratio both are nouns.

Word	Noun	Adjective	Verb	Adverb
load factor	Yes	No	No	No
ratio	Yes	No	No	No

As nouns, ratio is a hypernym of load factor; that is, ratio is a word with a broader meaning than load factor:

load factor: (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)
ratio: the relative magnitudes of two quantities (usually expressed as a quotient)

load factor (noun)	ratio (noun)
(aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)	the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree
	the relative magnitudes of two quantities (usually expressed as a quotient)