Max groundspeed you have ever gotten?

[V1Cutt]

645 in a SW 737 from BWI-BUF. I'll probably never see that again.

The most I ever saw in a Lear was 625 @ .83M

 

[Sphincter Boy]

640kts IAH-ORF in a E-145

 

[GPilot]

658 kts. G-III. San Diego to DC 3 hours 32 minutes gear up to touchdown.

 

[ETOPS-787]

GS

658 kts Lear jet. 55 mins from gear up to touchdown.
MDW to PHL.

 

[tinman]

Over Yosemite last year going to Oakland in our Aerostar, 78 kts. Coming back home the next day 304 kts. 16-17,000 ft.

 

[corp_da20_guy]

635 kts Roswell, NM to Nashville several years ago. 1:37 min in a Lear 25

 

[Smoking Man]

500kts in the Dornier Turbo prop, FL270 KBHM-KPIT.

 

[Flying Illini]

360kts King Air 200 CMI-DET
slowest: 310kts Falcon 10 at .86 mach PBI-CMI

 

[Jmmccutc]

186kts, C-172, CAK to 1G3...

 

[apdsm]

I saw 90kts in a Tomahawk once....we were kickin' a#&!!!!