ORIGINAL: ceffi
Hi,
it messured during my last flight with the Viper
308 km/h, or 166 kts or 191 mph groundspeed by nearly zero wind
with the VT 100.
Christian
Sounds like Mikes guess of 220 mph with a T12 @ 26 Lbs could be right if similar altitude. Germany vs Mississippi is hard to say but 191 mph with a 100N on that size plane is just Hauling Ass. I love it.