bibliography - Canadian Military History

3077. 177. Author Unknown. Height calibration: Swingate. April 1941. No PRO number.
3078. 178. Author Unknown. Summary of recommendations emerging from the visits of
scientific observers to GCI stations during 8 - 14 April 1941. April 1941. No PRO number.
3079. 179. Author Unknown. RDF intelligence summary for the month of March. April 1941. No
PRO number.
3080. 180. Author Unknown. The spreading of a stream of free balloons in a wind. May 1941.
No PRO number.
3081. 181. Williams, E.C. Proposed filter room for Northern Ireland. May 1941. No PRO
number.
3082. 182. Author Unknown. Report for April on RDF stations CH type. May 1941. No PRO
number.
3083. 183. Author Unknown. Report for April on RDF stations CH.L type. May 1941. No PRO
number.
3084. 184. Metcalfe, G., and R.G. Stansfield. Notes on performance of GL carpet as used for
night interception purposes in Kenley Sector. May 1941. No PRO number.
3085. 185. Egner, W.E. Heights (measured by RDF) of enemy aircraft just before entering the
country over the South and East coast: 13 - 19 March 1941. May 1941. No PRO number.
3086. 186. Author Unknown. PPI mask technique. April 1941. PRO AIR 20/2366.
3087. 187. Sawyer, F.L. Prototype operations control at Dunkirk. May 1941. No PRO number.
3088. 188. Denton, A.D. Test flights for RDF stations. May 1941. No PRO number.
3089. 189. Metcalfe, G. Avoidance tactics used by enemy aircraft over London. May 1941. No
PRO number.
3090. 190. Egner, W.E. Identification of friendly aircraft. May 1941. No PRO number.
3091. 191. Author Unknown. Report on the long aerial mine exercise at Durrington GCI.
May 1941. No PRO number.
3092. 192. Author Unknown. The value of GL as an aid to fighter interception. May 1941. No
PRO number.
3093. 193. Williams, E.C. Comments on HQ 13 Group's letter 13 G/S 1163/7/Ops and attached
list of alleged failures of RDF. May 1941. No PRO number.