The weight problem with Sentinel has been caused by the need to carry the Army officer's horse on deployment. The additional delay for entry into service concerns the argument with the treasury that the groom should receive flying pay although the officer's batman will have to go over on the trooper (the aeroplane trooper that is - not the groom although I understand that going over on a trooper is something common in the Household Cavalry). It has something to do with non-cavalry allowance (NCA) if I have correctly understood previous posts about who should be paid to fly. There is also the problem with precurement of a fire retardent for the hay (the in-flight fodder) but I'm told that the officer will find his own oats when he arrives in theatre.
