As I heard it, all three pilots landed more than once during the attack and immediately after to refuel/rearm, but instead of waiting they took the next available aircraft, so both Taylor and Welch flew both the P-40 and P-36 in combat that day. Can't recall specific mention of Rasmussen.
Some of those 17 US aircraft that got airborne that morning apparently had the same pilots in a few of them.
The He-100D was the propaganda fictional designation, at Heinkel it was the He-113 preproduction testbed, a follow on from the He-112b built for the DB-600 series motors and featuring experimental cooling systems to streamline the aircraft. The first skin-radiator system was unsuccessful so they installed a retractable belly radiator. For a limited period at max power it could outpace the Me-109E or anything else in the world at a comfortable rate, but it overheated in about 3mins and the radiator had to be extended. At that point the Messer was a little cleaner in sustained manoeuvres, but the Heinkel was more heavily armed.
The retractable radiator is from the He-112b so the comparison is probably between the Me-109D versus that aircraft, written up by condor legion in Spain.
The He-112b probably wound up with a name because they were put into front line service with Romania and were encountered by Allied fighters. Nobody put the "He-100" into service.
I don't recall the Japanese getting any He-113 testbeds. As far as I know they were kept at a factory lot after their infamous propaganda photos for a few months and then disassembled. I maybe forgetting some info, I'll let someone point it out rather than look it up.
He-100 were claimed as fighter kills by RAF pilots during 1941 but the Ministry confirmed these claims as pilot misreporting, by late 41 they knew the He-100D didn't exist.
Sure one might think the Japanese received a He-113 testbed for Ki-61 development purposes, since their sillouetté is so similar. A research project some time ago was published investigating the origin of Japanese wartime aircraft designs, finding British and German involvement during the 1920s-30s, for example most of the leading Japanese aeronautical engineers at Mitsubishi et al were trained by Arado.
That's where the similarity comes from, common engineering training. The research team found none of the designs, such as the Ki-61 had any other than original indigenous involvement. It wasn't a Heinkel copy, but both Heinkel and Kawasaki had the same schooling influences on how to design an inline fighter.