Notes:Training flight with instructor Bob Hepp of Aviation Adventures (KHEF) for high-altitude operations and O2 usage. Climbed to FL260 at approx. 30 KTs groundspeed. 308 KTs achieved in 2000 FPM descent after turning around.
Name:Jon Williams
Airline:Aerial surveying
Date:22 October 2006
Notes:Descending out of 15,500' on aerial survey mission 11NM southwest of KAUO (Auburn, Alabama, USA). IAS was 170mph (147kts).
Name:Deon van Dyk Tony Rikkers
Airline:Sovereign
Date:22 October 2019
Notes:Descent from FL260
YPJT - YESP
Name:Jon Williams
Airline:Mapping, aerial surveying
Date:14 January 2006
Notes:We were descending out of 13,000 on a photo-mapping mission just southwest of Montgomery, Alabama with a big push on the tail. IAS was 150mph (130 kts).