C
Conslaw
,
Turns out there are ways to tilt results in your favor: The F-4's used in the test was stripped down of all non-essential equipment, was waxed and polished until mirror smooth, and the engines were fine-tuned to eke out a little extra power; From what it would appear the F-106A involved was a squadron spare (I'm not sure if it was fine tuned in any real way): The F-106 was also an earlier model which had span-fences similar to the F-102A's (This would have produced a little bit more drag than the later F-106A's that had a cleaner wing with a small longitudinal slot, which acted somewhat like a dog-tooth, and eliminated such a need).
The fact that the F-4's in test trim had lower weight, less drag, and higher thrust than it would in actual combat-trim, combined with the fact that the F-106A was an older model with slightly higher drag than the latest models, and had little to no mods clearly would have given greater advantages in terms of speed, acceleration, overall climb-rate, and range than a stock F-4 would have compared to a new stock F-106A.
There were some areas where it was agreed the F-4 had advantages of course: The radar could engage at greater distances, the Sparrow had a longer range and a proximity fuse, and the interception radius of the F-4 was also greater than the F-106A*
(see footnote). The F-106A had some advantages in terms of it's ECCM capabilities, the cockpit displays were said to be of higher resolution, and the IRST was probably better.
Footnote: Interception radius involves the ability to accelerate out at supersonic speeds to the target and either engage, or decelerate loiter for a few minutes to ward them off; then cruise back home subsonic. From what I remember, the F-4's interception radius was 750 nm, with the F-106A's being around 650-700 nm. I'm not sure if these figures were based around the F-4B on internal fuel, internal fuel plus either a centerline/wing-tank, and/or the F-106A on internal fuel or internal & external fuel-tanks (if the latter is the case, the F-106A's range wouldn't have been applicable since they didn't appear to carry supersonic tanks until the late 1960's), with the variance in range figures either due the difference in the wing-design of the early and late F-106A's, or other matters (secrecy being what it is, figures have a tendency to creep up with time as matters are declassified).