Operation

APPENDIX "Y" 53 TO : HQ MAAF (attention 23rd SCORU) HQ MATAF (attention 2nd Command Unit 23rd SCORU) SADA SAAF FROM : SIO 21 SQUADRON SAAF REF : 21S/767 DATE : 18th July, 1944 OPREP No. 767 for the period ending 2100 hrs on the 17th July, 1944 REF MAP : ITALY 1:100,000 SHEET 117 JESI A: 12 Baltimores airborne from PESCARA at 1845 hrs to attack ROAD BRIDGE at S492504. Formation set course at 1905 hrs and bombed in boxes line astern from 9500' on a course of 185°. First box dropped a short stick from S494504 to S495499; 2nd box from S496501 to S495497; both boxes slight lateral error to the left, straddling railway line and road. Some direct hits on buildings at S495501, starting a small fire with white smoke. H/A/A slight inaccurate from coastal area East of target area. 4/10 str cu in layers from 9000-11000 ft en route and in target area. Area cover was provided by Spitfires. All A/C down by 2025 hrs. B: (i) 6 Balts IV (ii) NIL (i) 6 Balts V (ii) NIL C: NIL D: (i) 9.30 Hrs (ii) NIL (i) 9.30 Hrs (ii) NIL E: (i) 19200 x .30 1800 x .303 4200 x .50 (ii) & (iii) NIL (i) 19200 x .30 1800 x .303 4200 x .50 (ii) & (iii) NIL F: (i) 12 x 500 MC 18 x 250 GP (ii) As above (iii) & (iv) NIL (i) 12 x 500 MC 18 x 250 GP (ii) As above (iii) & (iv) NIL (fused 49-28 tail) G to V: NIL W: (i) One Balt IV; One Marauder III (ii) NIL X: (i) 50 mins. 1.30 Hrs. (ii) NIL Y & Z: NIL Hallick Capt. S.I.O., 21 Squadron, SAAF.

1944-07-18

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Form 541

MAP

Transcriber's Notes

Transcriber's Historical & Tactical Notes: * Operational Context (Interdiction of the Jesi Sector): * Strategic Goal: This sortie (No. 767) on the evening of July 17th, 1944, targeted a "ROAD BRIDGE at S492504" near Jesi. By this date, the liberation of Ancona was imminent (it would fall to Polish forces the next day). The Allied strategy was to destroy bridges and infrastructure behind the retreating German 278th Infantry Division to prevent them from establishing a new defensive line at the Metauro River. * Tactical Execution: The formation utilized a "boxes line astern" formation, approaching at the relatively low altitude of 9,500 feet. This low altitude was likely necessary due to the "layers [of stratocumulus cloud] from 9000-11000 ft". * Results: The bombing was imprecise. Both boxes suffered a "slight lateral error to the left," missing the bridge but "straddling railway line and road.". While the primary bridge remained intact, the hits on buildings and the resulting "small fire" likely added to the logistical chaos for the German withdrawal. * Defensive and Support Measures: * Flak Intensity: Opposition was "slight inaccurate" and originated from the "coastal area East of target area.". This indicates the presence of German mobile anti-aircraft units still guarding the coastal retreat route toward Fano and Pesaro. * Friendly Fighters: "Area cover was provided by Spitfires.". This continuous presence of Spitfire wings ensured that any remaining Luftwaffe "intruders" were kept at bay, though at this late stage of the Italian campaign, German air activity was rare. * Conversion Milestone (The First Marauder Entry): * Transition Progress: Section W and X provide a concrete look at the squadron's re-equipment phase. While 12 Baltimores were flying combat missions, "One Marauder III" logged "1.30 Hrs" of flight time. This reflects the pilot familiarization phase of the conversion to the Martin B-26 Marauder, which was the successor to the Baltimore in 21 Squadron's service. * Geography and Locations: * Jesi (Sheet 117): Jesi is an ancient walled town in the Marche region, inland from Ancona. In July 1944, it served as a major German transit hub. * Pescara: The squadron's home base on the Adriatic coast. The 100-minute round trip (18:45 to 20:25) illustrates the increasing range of the front line from their established airfields. * Abbreviations Expanded: * S.I.O.: Squadron Intelligence Officer (Capt. Hallick). * OPREP: Operational Report. * SCORU: Statistical Control and Operations Research Unit. * MAAF: Mediterranean Allied Air Forces. * MATAF: Mediterranean Allied Tactical Air Force. * SADA: Likely Senior Air Officer Administration (S.A.O.A.). * H/A/A: Heavy Anti-Aircraft fire (Flak). * str cu: Stratocumulus clouds. * M.C.: Medium Capacity (High Explosive). * G.P.: General Purpose. * A/C: Aircraft. * NIL: None. 55 Verification: Target File Verification: The document is dated 19th July, 1944 in the "DATE" field. It is a Sortie Report (Appendix "Z") labeled 54 in the top right corner.