The phrase "fit condition" is correct and usable in written English.
It can be used to describe something that is in an appropriate or suitable state for a particular purpose.
Example: "The equipment must be in fit condition before we can proceed with the testing."
Alternatives: "suitable state" or "proper condition."
"I'm not in a fit condition for a bath!" the outraged Sylvester fumes.
There's not been time, either, to get the £14,000 caravan at Skegness, which she bought as an investment, into a fit condition for letting.
The Tories are plunging towards hard Brexit and a riven Labour party is not in a fit condition to stop them.
The boat, on its first excursion from Nyack to Tarrytown, was not in fit condition to operate and was overloaded with passengers, the indictment says.
The playwright Timberlake Wertenbaker today claimed that critics at her first night on Monday were in no fit condition to review a play after a boozy theatre awards lunch.
Finally, systematic design procedures are proposed to assign circularity tolerance by prescribing a fit condition with a desirable process capability.
Although previous studies have primarily focused on testing the effectiveness of cervical orthoses under properly fit conditions, this study focuses on analyzing the effects of an ill-fitted cervical orthosis (Miami J).
And even the national rate set by the Bank of England cannot be tailored to fit conditions in every region of Britain.
Conservative rabbis tend to adapt certain Halakhahs to fit conditions in the modern world, as, for instance, the Halakhah regarding observance of the sabbath.
Statistical matrices to quantify positioning error of two perfectly circular mating parts subject to size tolerance for both clearance and transition fit conditions are first developed.
Quasi-static tests of the hybrid joints with different fit conditions are implemented, and a three dimensional finite element progressive failure analysis model is proposed to predict the influences of the bolt-hole fit conditions and fastener's preloads on the mechanical behaviors of the joints.
