There was only high cloud over target. Visibility was fair in

CONFIDENTIAL. APPENDIX "W" 219 FROM :- S.I.O. 21 SQUADRON S.A.A.F. TO :- H.Q. M.A.A.F. ( ATTENTION OPERATIONS RECORDS.) H.Q. M.A.T.A.F. ( S.C.O.R.U.) W.I.O. 3 WING S.A.A.F. REF :- 21S/1008. DATE :- 17th APRIL 1945. OPREP NO. 1008 FOR THE PERIOD ENDING 2100 HRS. ON THE 17th APRIL 1945. REF. MAP ITALY 1:100,000 SHEET 76 FERRARA ( SHORAN.) REF. MAP ITALY 1:100,000 SHEET 88 IMOLA. ( SQUADRON RAID.) <u>OPERATION NO. 204/21S/M.</u> A : 1 MARAUDER airborne from JESI L/G between 1309 and 1454 Hrs. and flew with 3 other Marauders in a box led by 30 Squadron on a "SHORAN" bombing mission to the TRESIGALLO SUGAR REFINERY at M.334828. The Box scored an excellent "Bull" with a complete straddle of the target, at 1410 Hrs. No enemy opposition was en- countered. WEATHER fair. VISIBILITY 10 miles. <u>OPERATION NO. 205/21S/M.</u> B : 12 MARAUDERS airborne in 3 boxes of 4 between 1410 and 1606 Hrs to bomb the 29th Panzer Division at M 240650. Formation set course from base at 1440 and bombed at 1518 Hrs. from 10 -11,000'. Second and third boxes straddled target with excellent concen- tration of bombs. First box missed with slight lateral error. There was slight, inaccurate H/A/A from vicinity of target. There was only high cloud over target. Visibility was fair in slight haze. B : (1) 13 MARAUDERS 111 (11) NIL. C : (1) NIL. (11) NIL. D : (1) 23.50 Hrs. (11) NIL. E : (1) 44,200 x .50 (11) NIL. (111) NIL. F : (1) 78 x 500 Lb. 52 x 250 Lb. FRAG. FUSED. (11) as in (1) (111) NIL. (1v) NIL. G TO V. NIL. W : (1) 2 MARAUDERS 111 (11) NIL. X : (1) 3.40 Hrs. (11) NIL. 8 x 10 Lb. Practice. Y & Z. NIL. S.T. Wrigill [handwritten signature] LT CAPTAIN. S.I.O. 21 SQUADRON S.A.A.F. 00, - - - SA21 | 737 17APR 45 F14 || HH M2465 10000 1509 BIA U (141)

1945-04-17

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Form 541

MAP

Transcriber's Notes

Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms * 21 SQUADRON S.A.A.F.: No. 21 Squadron, South African Air Force, a medium bomber unit. * 3 WING S.A.A.F.: The administrative and tactical higher command for the squadron during the spring 1945 offensive. * 29th Panzer Division: 29. Panzergrenadier-Division, a high-mobility German mechanized unit acting as a "fire brigade" reserve for Heeresgruppe C. * AIR 27/271/4: National Archives classification for Air Ministry Operations Record Books. * BA-BH (Martin Baltimore): The twin-engine predecessor aircraft utilized by the unit prior to converting to the current Martin B-26 Marauder III in late 1943. * FRAG. FUSED (Fragmentation): Anti-personnel and anti-material munitions designed to produce maximum shrapnel effects against soft-skinned vehicles and infantry. * H/A/A: Heavy Anti-Aircraft fire. * JESI L/G: Jesi Landing Ground, the primary base for 21 Squadron in April 1945. * MC/GP (Medium Capacity / General Purpose): Standard high-explosive ordnance classifications. This day's missions utilized a combination of 500 lb and 250 lb payloads. * MET: Meteorological intelligence. Conditions for Operation 204 were clear (10-mile visibility), while Operation 205 faced high cloud and hazy visibility. * S.C.O.R.U.: South African Central Operations Record Unit. * SHORAN: Short Range Navigation. A precision radar-beacon bombing system. Following the SAAF's first use of the system on April 16, Operation 204 represents continued tactical integration of this equipment. * S.I.O.: Squadron Intelligence Officer, Lt./Capt. S.T. Wrigill. Operational Context Target File 271-4_52 documents a day of intensive and technologically advanced operations on 17th April 1945, a critical juncture in Operation Grapeshot. Operation No. 204 highlights the continued deployment of SHORAN-equipped aircraft. By leading a composite box with 30 Squadron, the unit achieved a precision "Bull" straddle of the Tresigallo Sugar Refinery (Map Ref: Sheet 76 - FERRARA, M.334828). Sugar refineries were frequently utilized by the German 10th Army (10. Armee) as fortified billets and depots; destroying this facility helped sever the logistical tether for Axis units retreating toward the Po River. Operation No. 205 targeted concentrations of the 29th Panzergrenadier Division at Map Ref M. 240650. This German division was a high-value mobile reserve essential to the Axis defense of the Argenta Gap. The deployment of fragmentation ordnance (78 x 500 lb and 52 x 250 lb) across two successful boxes achieved an "excellent concentration of bombs" on German mechanized assets. These strikes supported the Eighth Army’s breakthrough by neutralizing the tactical reserves needed by Heeresgruppe C to sustain a coherent defensive line, directly contributing to the terminal logistical collapse of German resistance in the sector. 53 Phase 1: Verification & Extraction Identity Check: 17 APR 45. Phase 2: Technical Expansion (The "Transcriber's Notes") Glossary of Terms * 21 S.A.A.F. / SA21: No. 21 Squadron, South African Air Force, a medium bomber unit operating as part of No. 3 Wing SAAF. * AIR 27 / 271 / 4: United Kingdom National Archives classification for the Air Ministry: Operations Record Books (ORBs); Volume 4 (AIR 27/271/4) catalogs the 1945 War Diaries and associated strike photography for 21 Squadron. * BIA U (141): Box I Alpha, Up. This technical suffix identifies the photographic record from the first aircraft in the first four-plane formation (Box I) and indicates this is the 141st frame in the strike film sequence. * BA-BH (Martin Baltimore): The twin-engine medium bomber utilized by the unit prior to their conversion to the current Martin B-26 Marauder III in late 1943. * F14: Focal length of the camera lens (14 inches) utilized for high-altitude vertical strike photography. * HH M2465: Map reference M. 2465 (identifying coordinates near M. 240650), identifying the target area for concentrations of the 29th Panzer Division on the Imola 1:100,000 Sheet 88. * MC/GP (Medium Capacity / General Purpose): Standard Allied high-explosive ordnance classifications. For this mission, the unit utilized 500 lb and 250 lb Fragmentation (Frag) bombs (totaling 78 x 500 and 52 x 250 for the formation) to maximize effective coverage against unarmored personnel and mechanized assets. * MET (Meteorological Report): Meteorological intelligence. Conditions for this afternoon sortie (Operation 205) were characterized by high cloud over the target with visibility reported as fair in slight haze. * 10000 1509: Operational data indicating a bombing altitude of 10,000 feet and a strike time of 15:09 hours (recorded as 1518 hrs in the narrative summary). Operational Context Target File 271-4_53 is a vertical aerial strike photograph documenting Operation No. 205/21S/M on 17th April 1945. The image captures the kinetic results of the Martin Marauder III formation targeting high-value mobile reserves of the 29th Panzergrenadier Division (29. Panzergrenadier-Division). This mission was conducted during the height of Operation Grapeshot, the final Allied spring offensive in Italy. The strategic objective was to neutralize German mechanized assets serving as a "fire brigade" defense for Heeresgruppe C in the Argenta Gap sector. Following a precision SHORAN raid on a sugar refinery earlier in the day, this squadron-strength strike utilized saturation fragmentation ordnance to shatter Axis tactical integrity south of the Po River. The photograph illustrates a high-density detonation pattern characteristic of the fragmentation clusters deployed. While narrative reports indicated the first box suffered a slight lateral error, the second and third boxes achieved an "excellent concentration of bombs" that straddled the briefed area. The massive smoke plumes visible in this frame indicate significant damage to the rural structures and agricultural plots where Panzergrenadier units were billeted. Encountering only "slight, inaccurate" heavy anti-aircraft fire, the formation maintained the terminal air pressure required to facilitate the Eighth Army's final breakthrough of the Argenta defensive line. 54 Phase 1: Verification & Extraction Identity Check: 18th April, 1945.