Only the one update today as things happened rather quickly and I was at the front of the grid. Briefing was at 10:30 and first launch was 11:15. Metman suggested strong 20kt Westerlies with minimal changes at height and no sheer. Cloudbase likely to be up to 4500' in parts with 8/8 killing off convection later.
Multi-barrel 3-hour AAT was set -
Booker Bridge (BOB) - Ilsley (ILS/10km) - Bozeat (BOZ/25km) - Bicester (BIC/10km) - Booker SW (BO1) - Booker Finish (BF1). This gave a range of 136.0km/334.1km (214.1km).
Nearly everybody completed the task, with Steve Williams landing JDV at Thame and Jim Pengelly in 208 managing 61km before returning home.
Provisional results can be found at http://www.soaringspot.com/include/booker2009/results/mixed/daily/day4.html.