This means 801 km/h, or mach 0.65 ! This is just crazy. This new record has been established by Spencer Lisenby with a Kinetic 100. The 500 mph barrier will be broken for sure !
Congratulation to Spencer for this new achievement.
New DS World record with 498 mph
byPierre Rondel
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6
Hello,
ReplyDeleteSorry to disappoint you, but 800 km/h is not Mach 0.8. Soud speed at sea level is approx 340 m/S, i.e. 1224 km/h. So 800 km/h is Mach 0.65.
Still, very impressive spedd achieved !!!
Regards.
Corrected :)
ReplyDeletespencer is the man, when i tell my old duffer friends here in montana about the speeds, some of them wont belive me even with the video
ReplyDeleteIs there any video ?
ReplyDeleteRemember 498mph was groundspeed not airspeed. Max airspeed is estimated at 580mph. Also temperature was 20deg F. Put this into mach speed calc and you get m=0.79!
ReplyDeleteYes - search 498mph on Vimeo
ReplyDelete