Salute

Quote:
Get it about right and about right relative to the other planes...
One can only "get it about right", when one has a historically measured baseline to compare the virtual model to.

And to suggest that historical tests are irrelevant or unworthy of quoting simply because they are not 100% consistent is the height of scientific folly.

Any scientist will do an experiment multiple times because they know there will be variation in the results.

One arrives at a conclusion after studying and averaging all the tests.

The RAF did careful flight testing of all its aircraft, with speeds noted at various predetermined altitudes.

Those results were compared with other similar tests of the same aircraft.

To make the ridiculous comment that because results may vary slightly, that one can disregard them is complete nonsense.