Originally Posted by
LchChester
May be umbrella is officially classified as an "offensive weapon" (just kidding)
well... it's a matter decided by the Security not the airline. So may be LHR doesn't allow a long umbrella while NRT allows. Anyway who needs an umbrella on board unless one is flying on Qantas A380
Theoretically, one may need to walk through uncovered area from airplane to a building.