Operation

21 SQUADRON S. A. A. F. OPERATIONAL REPORT NO. 13 COPY NO...8.... ( O. O. Nos: Bomber Group Op. order No. "A" 129 and Squadron Op. order No. 13.) DATE: 18.10.41. MAP REF: Tobruk 1:500000 and Target Map D./8 DATE OF OP. 18th. October 1941. NUMBER AND TYPE OF AIRCRAFT. 9 Marylands. DUTY. High level bombing Derna Landing Ground. NARRATIVE. The 9 Marylands took off at 0716 hours, and taking the sea route, turned in to fly over Derna at 0910 hours. The target was reached two minutes later, and large gaps in the clouds allowed the leaders to run in, from the North West and North. Observation was difficult, due to the fast moving clouds, but the Observers claim that their sticks fell across the Landing ground from North East to South West, across the Northern corner of West Satellite, near the hangar, and on the Satellite just East of the South East corner of the Landing ground. About 25 well dispersed aircraft were seen on the L.G. and the Eastern Satellite, and one burst was reported between three aircraft on the L.G. Photographs show very little owing to cloud. While over Derna Harbour, what appeared to be three Ships were seen and reported. On examination of photos taken makes it almost certain that these reports are of wrecks. On the return trip, over the desert, a single engine plane, with no tail, was reported on the ground at 393315. Fighters were seen to take off from Gobi 434323. WEATHER. Fine. 7/10 to 10/10ths. cloud. A/A. Was moderate and inaccurate, most of the bursts seen being well behind. While over the L.G., two Gunners reported a large number of bursts, almost amounting to a barrage, at 12000 ft., and behind. TIMES. Airborne 0716 Hours. attack 0913 Hours. Landed 1122 Hours. Total hours flown. 37 hours 20 min. DISTRIBUTION. * S. I. O. HQ. R. A. F. M. E. * Intelligence 204 Group. * Operations 204 Group. * Bomber Group. * War Diary. * do

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* File [handwritten signature] L Saunders. Lt. SQUADRON INTELLIGENCE OFFICER.

1941-10-18

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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. During October 1941, the unit operated the Martin Maryland, a twin-engine medium bomber utilized for high-altitude horizontal bombing. * A/A: Anti-Aircraft artillery fire. Defensive fire was characterized as moderate and inaccurate, though gunners reported a dense "barrage" at 12,000 feet while over the target area. * BA-BH (MARTIN BALTIMORE): The R.A.F./SAAF operational code for the Martin Baltimore medium bomber. While the squadron later became primary users of the Baltimore (BA-BH) in 1942, during the October 1941 period, they utilized its direct technical precursor, the Martin Maryland. * GOBI (434323): An Axis landing ground or geographic coordinate from which hostile fighters were observed taking off during the formation's egress. * L. G. / SATELLITE: Landing Ground and its auxiliary airfield. Derna L. G. was the primary objective, with its "West Satellite" and "Eastern Satellite" also receiving ordnance. * MC/GP (MEDIUM CAPACITY / GENERAL PURPOSE): Standard Allied ordnance types. For this raid, the Marylands were loaded with 8 x 250 lbs GP munitions. * MET: Meteorological data. Weather (MET) for this mission was compromised by heavy cloud cover, ranging from 7/10 to 10/10ths, which significantly hindered photographic assessment and visual observation. * O. O.: Operational Order. * S. I. O. HQ. R. A. F. M. E.: Squadron Intelligence Officer, Headquarters, Royal Air Force Middle East. Operational Context Operational Report No. 13, dated 18 October 1941, documents a high-level strike against the Derna Landing Ground complex. Strategically, Derna was the most vital advanced hub for Axis air power in Cyrenaica, housing concentrations of the German Air Force (GAF) and Italian Air Force (IAF). Neutralizing these airfields was a core objective of the Desert Air Force (DAF) to establish air superiority and degrade Rommel's tactical air support prior to the launch of Operation Crusader. The mission sought to destroy dispersed aircraft on the ground, with approximately 25 airframes observed during the run. The reported burst between three aircraft and sticks falling near the hangar and across the satellites indicate a successful saturation of the target area, despite the navigational challenges posed by atmospheric conditions. Execution Constraints The operation faced severe environmental and tactical constraints. The presence of 7/10 to 10/10ths cloud made visual observation and photography "difficult," with the target only becoming visible through "large gaps". This prevented comprehensive photographic confirmation of the bombing results, which were based primarily on observer claims. Tactical opposition included a heavy anti-aircraft barrage at 12,000 feet and the observation of fighters taking off from Gobi. Furthermore, reconnaissance during the egress identified potential maritime targets in Derna Harbour, though post-mission analysis of the photos suggested these were likely existing wrecks rather than active shipping. The cumulative flight time for the nine airframes was 37 hours and 20 minutes, highlighting the long-range endurance required for unescorted strikes into the Cyrenaican interior. This report, signed by Lt. L. Saunders, provides an archival record of the squadron's persistent pressure on Axis air logistical centers despite suboptimal meteorological conditions. 87 Phase 1: Verification & Extraction Identity Check: There is no specific 'Date' column on this document. However, the file serves as Appendix "A" to Operational Report No. 13, which is dated 18.10.41.