▁it ▁became ▁available ▁after ▁the ▁departure ▁of ▁the ▁ 4 0 9 th ▁Bomb ard ment ▁Group ▁( Light ) ▁for ▁France . ▁Little ▁Wal den ▁was ▁a ▁Class ▁A ▁air field ▁with ▁concrete ▁run ways ▁and ▁much ▁better ▁facilities ▁than ▁were ▁available ▁at ▁B ott ish am . ▁ ▁Post - war ▁use ▁From ▁mid - 1 9 4 5 ▁until ▁ 5 ▁January ▁ 1 9 4 6 ▁B ott ish am ▁was ▁used ▁tempor arily ▁by ▁Belg ian ▁air men ▁until ▁being ▁closed . ▁ ▁Today , ▁few ▁traces ▁of ▁B ott ish am ▁remain ▁as ▁the ▁land ▁has ▁all ▁been ▁rec laimed ▁for ▁far ming , ▁however ▁a ▁few ▁buildings ▁remain ▁in ▁use . ▁The ▁outline ▁of ▁the ▁P SP ▁run way ▁can ▁still ▁be ▁seen , ▁but ▁now ▁as ▁a ▁long ▁thick ▁row ▁of ▁trees . ▁Also ▁the ▁track ▁which ▁inter se cted ▁the ▁P SP ▁run way ▁towards ▁the ▁SW ▁end ▁is ▁now ▁a ▁permanent ▁Road ▁which ▁cut s ▁through ▁this ▁row ▁of ▁trees . ▁There ▁is ▁now ▁a ▁volunte er ▁run ▁museum ▁at ▁the ▁former ▁site , ▁in ▁honour ▁of ▁the ▁R AF ▁and ▁US AF ▁who ▁were ▁station ed ▁there ▁during ▁the ▁war . ▁ ▁B ott ish am ▁Air field ▁Museum ▁ ▁The ▁Museum ▁opened ▁in ▁ 2 0 0 9 ▁and ▁is ▁the ▁only ▁UK ▁museum ▁dedicated ▁to ▁the ▁Royal ▁Air ▁Force , ▁United ▁States ▁ 8 th ▁Army ▁Air ▁Force ▁and ▁Belg ian ▁Air ▁Forces . ▁They ▁are ▁operating ▁out ▁of ▁the