On 16 September 1927 Beamish returned to RAF Cranwell as a member of the staff .
On 16 September 1927 Beamish promoted flight lieutenant on 12 December 1928 , He was posted to Canada on 22 March 1929 on exchange with an RCAF officer .
On 16 September 1927 Beamish returned to RAF Cranwell as a member of the staff and promoted flight lieutenant on 12 December 1928 , He was posted to Canada on 22 March 1929 on exchange with an RCAF officer .