Gloster Grouse
... that the Gloster Grouse biplane, developed in 1922, never saw active service in the Royal Air Force?
... that the <b id="mwEcI"><a href="./Gloster_Grouse" id="mwEcM" rel="mw:WikiLink" title="Gloster Grouse">Gloster Grouse</a></b> <a href="./Biplane" id="mwEcQ" rel="mw:WikiLink" title="Biplane">biplane</a>, developed in 1922, never saw active service in the <a href="./Royal_Air_Force" id="mwEcU" rel="mw:WikiLink" title="Royal Air Force">Royal Air Force</a>?