Nicholas - it all depends on traffic and routing - it is not necessarily a 'short sector'! On a busy day you could be up to 14,000' and airborne for 30 minutes or more - I've been several times EGSS-EGKK in well over 40 minutes - and holding at TIMBA. I've also done EGHH-EGKK in both under 20 minutes and 1 hour.
