in fact, king george vi trained here as a pilot. now it's a museum in the middle of an industrial estate. but the alfewer to adapt, it was literally grass fields, meant a close after the war to be replaced by an r.e.f. facility in west london called heathrow. other large airports also developed around the capital, notably gadwick, but they aren't hubs because all passengers using those airports start or end their sunny journey there. heathrow, like it or loath it, is britain's only true hub airport where travelers can connect with flights to almost anywhere in the world. but as most people will agree, heathrow's now full and its owners are screaming out for permission to build another runway. so the fifth major review since the 1960's into airport capacity in the southeast is now under way. although it won't report until late 2015, it could sut expanding at heathrow or gad wick or even building a completely new hub airport. so while london dithers i wanted to find out what airports in other cities are doing. first stop, birmingham.

blames the abdication crisis on the early death of her father who was duke of york and then became king george vihe died in 1952, and they've hated the whole idea of abdication ever since. the queen has repeatedly said that she will reign until her death. so charles is going to be in for a very long wait. he's 64 now. the queen is going to be 87 in april. and her mother, the queen mother was almost 102. so he's more likely to be going up the aisle of westminster abbey to the throne on his walker than anything else. it's going to be a short reign like edward vii, he raijed from 1901 to 1910. after charles iii, we will have prince william who is now only 30. he will have a long and glorious raings one hopes and be on the throne for a very long time. there will be no abdications. this is firmly set in the constitution. when the queen dies we haveching charles as king charles iii for a while and william will come to the throne as william the vi. the queen is very firm. abdication is a no go with the royal family. >> seeing this beautiful young couple up there, you get the sense they have the maturity

the queen mother saved the 15th-century castle from ruin soon after her husband, king george vi, diedit took three years to repair, and every summer for almost 50 years, she entertained family and friends. guest would often pop along to john o'groats and the orkneys and bring back the tackiest uvenir they could find, which their royal host found very amusing. it was left to members of staff to find a good home for most of the items. a few escaped. note the late 16th-century flemish tapestry adorned by a late 20th-century scottish nessie. so that's where that got to. when she was in residence, the queen mother's daily ladies helped look after the castle, and they still come in every day. now they're tour guides, recalling life at the castle and discreetly spilling the beans-- plus the occasional lemon. and here's the proof-- a telegram to her daughter, who was on the royal yacht britannia, which was close by. "there is a grave shortage of lemons. could you possibly bring a couple with you?" the young queen arrived, vital fruit in hand, and disaster was avoided. the queen mother's passi