Network Rail has so far installed technology that works only at speeds of up to 75mph, though the company has begun work on increasing this to 100mph.
The Sun on Sunday regained the top spot in June, with a 32,000-copy sales lead, increasing this to just under 120,000 copies in July.
Initially Davis tangled up Hendry in his carefully planned safety game, taking a 5-2 lead overnight and increasing this to 10-4 afthe the morning session on the second day.
Gorillas, they suggest, already live on the limit of viability, foraging and eating for 8.8 hours a day, and in extreme conditions increasing this to as much as 10 hours a day.
Trusts have been told to make "cash-releasing" efficiency savings worth £3bn a year and the Treasury is understood to be considering increasing this to £5bn in 2010-11.
The table (left) shows how much you can claim for various flight distances and length of delay, but the delay threshold could change next summer as a proposal by the European parliament suggests increasing this to five, seven or even 12 hours.
