/quote

“I’ll always remember a certain radio exchange that occurred one day as Walt (my back-seater) and I were screaming across Southern California 13 miles high. We were monitoring various radio transmissions from other aircraft as we entered Los Angeles airspace. Though they didn’t really control us, they did monitor our movement across their scope.

I heard a Cessna ask for a readout of its ground speed.”90 knots” Center replied. Moments later, a Twin Beech required the same. “120 knots,” Center answered.

We weren’t the only ones proud of our ground speed that day as almost instantly an F-18 smugly transmitted, “Ah, Center, Dusty 52 requests ground speed readout.” There was a slight pause, then the response, “525 knots on the ground, Dusty.” Another silent pause.

As I was thinking to myself how ripe a situation this was, I heard a familiar click of a radio transmission coming from my back-seater. It was at that precise moment I realized Walt and I had become a real crew, for we were both thinking in unison. “Center, Aspen 20, you got a ground speed readout for us?” There was a longer than normal pause…. “Aspen, I show 1,742 knots” (That’s about 3225.5 km/h for people who don’t know)

No further inquiries were heard on that frequency.

/end quote
In similar vein (airport not stated), an SR-71 crew were listening in on a similar “match this” contest

/transcription of communication

Cessna: Request clearance for 4000 ft
Center: Cessna clear for 4000 ft
Corporate jet: Request Clearance for 12,000 ft
Center: Corporate clear for 12,000 ft
Airliner: Request clearance for 18,000 ft
Center: Airliner clear for 18,000 ft
Finally the SR-71 called ATC.
SR-71: Request clearance to 80,000 ft
Center: Just how in hell do you plan to get up there?
SR-71: Uh Center, We’re not planning to go up there, wer’re descending to 80,000 ft.

/end transcription

I just came across those while doing some reading on the SR-71blackbird, I thought they where funny. If you don’t: I don’t have to care about you not liking something or other.