| Description | Date | Identifier | |
| Correction of incorrectly manufactured Phantom III radiator matrices due to a design error and communication delay. | 1st Feb 1937 | Box 94 \ 3 scan0140 | |
| Delays in the system for print requisitions related to radiator matrices and proposing improvements. | 2nd Feb 1937 | Box 94 \ 3 scan0141 | |
| Rotted rubber water connections from a Phantom III 37.EX Unit No. 12 chassis. | 19th Feb 1937 | Box 94 \ 3 scan0142 | |
| The fitting of a standard P.III. Mk.VI radiator matrix to a Bump Chassis radiator. | 5th Mar 1937 | Box 94 \ 3 scan0143 | |
| Cooling test modifications for the Phantom III, including a new fan cowl ring and testing an American-made matrix. | 6th Mar 1937 | Box 94 \ 3 scan0144 | |
| Instruction for an experimental modification to the Phantom III radiator shutters to achieve a cost saving. | 9th Mar 1937 | Box 94 \ 3 scan0145 | |
| Request for analysis of a deposit sample from an overheated Phantom III radiator. | 12th Mar 1937 | Box 94 \ 3 scan0146 | |
| Causes and diagnosis of overheating in Phantom III cars, focusing on radiator matrix blockage. | 13th Mar 1937 | Box 94 \ 3 scan0147 | |
| Short memo confirming a query about Phantom III Radiators has been passed to the Experimental Department. | 15th Mar 1937 | Box 94 \ 3 scan0148 | |
| Laboratory analysis of a deposit found in a Phantom lll Radiator. | 16th Mar 1937 | Box 94 \ 3 scan0149 | |
| Filter design to catch loose solder in the Phantom III bottom water connections. | 19th Mar 1937 | Box 94 \ 3 scan0150 | |
| Request to send three complete Phantom III radiator matrix units to Cricklewood for customer replacements. | 19th Mar 1937 | Box 94 \ 3 scan0151 | |
| Dispatch of Phantom III Mark VI radiator matrices to Cricklewood to address customer complaints. | 19th Mar 1937 | Box 94 \ 3 scan0152 | |
| Issues with Phantom III radiator matrices supplied by John Marston Ltd. and proposed inspection procedures. | 19th Mar 1937 | Box 94 \ 3 scan0153 | |
| Duplicate frames and modifications to building jigs for tank and matrix assembly. | 19th Mar 1937 | Box 94 \ 3 scan0154 | |
| The causes of overheating in Phantom III radiators and the proposed solutions. | 19th Mar 1937 | Box 94 \ 3 scan0155 | |
| Heat treatment process for the Phantom III chassis induction box heater to prevent radiator silting and corrosion. | 20th Mar 1937 | Box 94 \ 3 scan0156 | |
| Request for the cost of rectifying silting issues in Phantom III radiators with Mark V matrices. | 22th Mar 1937 | Box 94 \ 3 scan0157 | |
| Dispatching three sets of Phantom III Mark VI radiator matrices to address customer complaints. | 23th Mar 1937 | Box 94 \ 3 scan0158 | |
| Overheating and silting issues with Phantom III radiator matrices. | 19th Mar 1937 | Box 94 \ 3 scan0159 | |
| The removal of a radiator matrix unit for inspection. | 24th Mar 1937 | Box 94 \ 3 scan0160 | |
| Instructions regarding an experiment to fit a filter to the radiator outlet on a Phantom III chassis to prevent loose solder entering the water pump. | 25th Mar 1937 | Box 94 \ 3 scan0161 | |
| Manufacturing defect in PH.III Radiator Mk.V matrices. | 25th Mar 1937 | Box 94 \ 3 scan0162 | |
| Manufacturing fault in Mk.V radiator matrices and a proposal for depot-level inspections. | 31th Mar 1937 | Box 94 \ 3 scan0163 | |
| The testing of a Phantom III radiator shell made of mild steel and chromium plating due to dissatisfaction with its appearance. | 2nd Apr 1937 | Box 94 \ 3 scan0164 | |
| Development of a test for silting in Mk.V waterways on Phantom III cars. | 5th Apr 1937 | Box 94 \ 3 scan0165 | |
| Repairs on Chassis No. 3-AZ-32, detailing the fitting of a new radiator matrix and the need for a balanced propellor shaft. | 6th Apr 1937 | Box 94 \ 3 scan0166 | |
| The dispatch and replacement of Mk.VI matrix units. | 7th Apr 1937 | Box 94 \ 3 scan0167 | |
| Cover memo forwarding a request for replacement Mk.VI matrix units. | 7th Apr 1937 | Box 94 \ 3 scan0168 | |
| Methods to prevent corrosion in heater boxes for the Phantom III chassis, including oxide films and the Parkerising process. | 13th Apr 1937 | Box 94 \ 3 scan0169 | |
| Query about distinguishing between Mk. V and Mk. VI radiator matrices after an overheating complaint on a P.III. | 14th Apr 1937 | Box 94 \ 3 scan0170 | |
| Overheating issues and differences between Mk.V and Mk.VI radiator matrices. | 16th Apr 1937 | Box 94 \ 3 scan0171 | |
| Setup and requirements for corrosion tests on Phantom III crankcases and cylinder heads. | 16th Apr 1937 | Box 94 \ 3 scan0172 | |
| Preparations for fan and radiator tests on a Phantom III vehicle at Brooklands. | 19th Apr 1937 | Box 94 \ 3 scan0173 | |
| Internal memorandum regarding the setting method for a radiator steam valve. | 21th Apr 1937 | Box 94 \ 3 scan0174 | |
| Request to build and dispatch a radiator outlet filter according to scheme LeC.5586 for car 35-EX. | 22th Apr 1937 | Box 94 \ 3 scan0175 | |
| Design flaw in the bonnet rest angle attachment on Phantom III cars, preventing radiator removal. | 22th Apr 1937 | Box 94 \ 3 scan0176 | |
| Series of tests conducted on a Phantom III Continental engine and radiator. | 22th Apr 1937 | Box 94 \ 3 scan0177 | |
| Conclusions from tests on an engine's cooling system, focusing on water flow and cylinder head temperatures. | 22th Apr 1937 | Box 94 \ 3 scan0178 | |
| Summary of engine cooling system modifications and heat performance comparisons between various engines. | 22th Apr 1937 | Box 94 \ 3 scan0179 | |
| Graph showing curves of heat to water and water flow for a Continental Phantom II with a second cooling radiator. | 22th Apr 1937 | Box 94 \ 3 scan0180 | |
| Line chart comparing temperatures at various points in an engine head at 3000 RPM and 1000 RPM. | 22th Apr 1937 | Box 94 \ 3 scan0181 | |
| Diagram showing points on the exhaust and inlet sides where local head temperatures were recorded. | 22th Apr 1937 | Box 94 \ 3 scan0182 | |
| Table showing heat to jacket, temperature rise across the engine, and water flow under different sets of conditions. | 22th Apr 1937 | Box 94 \ 3 scan0183 | |
| Chart showing local cylinder head temperatures on 'B' side head during a pressure cooled test on a Continental PH:II engine. | 22th Apr 1937 | Box 94 \ 3 scan0184 | |
| Graph comparing engine specific jacket heat figures with American figures. | 22th Apr 1937 | Box 94 \ 3 scan0185 | |
| Graph plotting curves of specific jacket heat against engine RPM for the PH III Continental and Bentley 4 1/4 Litre engines. | 22th Apr 1937 | Box 94 \ 3 scan0186 | |
| Tests to determine the amount of heat picked up in Phantom III cylinder head exhaust port jackets. | 22th Apr 1937 | Box 94 \ 3 scan0187 | |
| Summary and proposal regarding cooling improvements for the Phantom III engine by modifying the exhaust port water jackets. | 22th Apr 1937 | Box 94 \ 3 scan0188 | |
| Graph showing curves of heat to exhaust port water jackets on a Standard Phase III engine. | 22th Apr 1937 | Box 94 \ 3 scan0189 | |
| Graph showing the effect of water jackets on exhaust ports on the total water jacket heat for a Phantom III standard engine. | 26th Apr 1937 | Box 94 \ 3 scan0190 | |
| Follow-up query regarding a suspected defective Mk.VI radiator matrix, highlighting the urgency due to ongoing production. | 26th Apr 1937 | Box 94 \ 3 scan0191 | |
| Dispatch of two Phantom III radiator matrix units for examination. | 28th Apr 1937 | Box 94 \ 3 scan0192 | |
| Test report on Phantom III radiator steam valves, detailing blow-off settings and measurements. | 29th Apr 1937 | Box 94 \ 3 scan0193 | |
| The incorrect setting of PH.III radiator steam valves on production and a proposed new pressure testing method. | 30th Apr 1937 | Box 94 \ 3 scan0194 | |
| Instruction to remove the current radiator matrix unit on vehicle 37.EX and fit a new one. | 7th May 1937 | Box 94 \ 3 scan0195 | |
| Requesting a radiator matrix change and dynamo correction for car 37.EX. | 10th May 1937 | Box 94 \ 3 scan0196 | |
| Requesting a radiator matrix change for car 37-EX, swapping it with one from car 3.AX.77. | 11th May 1937 | Box 94 \ 3 scan0197 | |
| Request to modify a Phantom III radiator matrix to test underbonnet temperatures at Brooklands. | 21th May 1937 | Box 94 \ 3 scan0198 | |
| Proposed designs for a Phantom III radiator dummy filler cap to improve visibility. | 27th May 1937 | Box 94 \ 3 scan0199 | |
| Two proposed designs for a Phantom III radiator dummy filler cap to improve visibility. | 27th May 1937 | Box 94 \ 3 scan0200 | |
| Investigation of car overheating issues, particularly in London traffic conditions. | 27th May 1937 | Box 94 \ 3 scan0201 | |
| Standardisation of water hose connections and joint washer material from Dermatine to Klingerite. | 10th May 1937 | Box 94 \ 3 scan0202 | |
| Production assessment note regarding the tool cost for the 'E' Series chassis. | 14th Mar 1932 | Box 94 \ 3 scan0203 | |
| Overheating complaints with Phantom III Mark V radiators and their subsequent replacement. | 7th Jun 1937 | Box 94 \ 3 scan0204 | |
| Complaints of overheating in Phantom III Mark V radiators and the disposition of re-conditioned matrices. | 7th Jun 1937 | Box 94 \ 3 scan0205 | |
| Investigation into overheating complaints on the Phantom III model, identifying the cause as radiator matrix silting. | 7th Jun 1937 | Box 94 \ 3 scan0206 | |
| Investigations and proposals for dealing with engine overheating complaints, specifically silting up of the matrix and idling overheating. | 7th Jun 1937 | Box 94 \ 3 scan0207 | |
| List of proposed and ongoing modifications to address engine overheating issues. | 7th Jun 1937 | Box 94 \ 3 scan0208 | |
| Urgent memo regarding recurring cases of cooling water overheating in Phantom III vehicles. | 7th Jun 1937 | Box 94 \ 3 scan0209 | |
| Covering note for a report on the present position of an over-heating problem. | 8th Jun 1937 | Box 94 \ 3 scan0210 | |
| Instructing the replacement of a Gallay matrix unit and fitting a standard fan and drive on car 37-EX. | 14th Jun 1937 | Box 94 \ 3 scan0211 | |
| Silting up of Phantom III Mark V radiator matrices and the process for their renovation. | 14th Jun 1937 | Box 94 \ 3 scan0212 | |
| Relocation of junction boxes, fan bearing lubrication intervals, and grease specifications. | 15th Jun 1937 | Box 94 \ 3 scan0213 | |
| Instructions for setting the Phantom III radiator steam valve. | 16th Jun 1937 | Box 94 \ 3 scan0214 | |
| Overheating engine complaint on chassis 3-AZ-36 and the subsequent radiator matrix replacement. | 18th Jun 1938 | Box 94 \ 3 scan0215 | |
| Clarifying the procedure for handling defective Mark V matrices, specifying they be returned to the Repair Dept. and replaced with renovated units. | 22th Jun 1937 | Box 94 \ 3 scan0216 | |
| Complaints of overheating in Phantom III cars and the proposed remedy of fitting high-speed fans. | 24th Jun 1937 | Box 94 \ 3 scan0217 | |
| Tests carried out on Ph.III radiators and fans at Brooklands and Cricklewood to improve cooling. | 24th Jun 1937 | Box 94 \ 3 scan0218 | |
| Results of cooling system tests, focusing on modifications to the fan, bonnet, and radiator matrix. | 24th Jun 1937 | Box 94 \ 3 scan0219 | |
| Vehicle cooling system tests, detailing results from calorstat performance, matrix core comparisons, and under-bonnet temperature improvements. | 24th Jun 1937 | Box 94 \ 3 scan0220 | |
| Test results on various engine cooling system components, including fan rings, bonnets, and radiator matrices. | 24th Jun 1937 | Box 94 \ 3 scan0221 | |
| Summary of engine overheating issues and proposed solutions, including a new fan and radiator matrix. | 24th Jun 1937 | Box 94 \ 3 scan0222 | |
| Results of idling cooling tests carried out on a 37 EX car at Brooklands. | 24th Jun 1937 | Box 94 \ 3 scan0223 | |
| Table of test figures showing engine and fluid temperatures for various vehicle setups while running in dense London traffic. | 24th Jun 1937 | Box 94 \ 3 scan0224 | |
| Results of cooling tests conducted at Brooklands on the 37 EX car, comparing different radiator matrix and fan configurations. | 24th Jun 1937 | Box 94 \ 3 scan0225 | |
| Results of cooling tests carried out at Brooklands at maximum speeds on a 37 Ex. Car, Sheet 4. | 24th Jun 1937 | Box 94 \ 3 scan0226 | |
| Results table from tests conducted at Brooklands on under-bonnet temperatures. | 25th Jun 1937 | Box 94 \ 3 scan0227 | |
| Retention and potential redesign of the radiator steam valve on the Phantom III model. | 25th Jun 1937 | Box 94 \ 3 scan0228 | |
| Request for a report on the nature of corrosion product samples removed from a car's water system. | 28th Jun 1937 | Box 94 \ 3 scan0229 | |
| Laboratory analysis report on corrosion deposits from a Phantom III water system. | 1st Jul 1937 | Box 94 \ 3 scan0230 | |
| Modifying the Cambridge Thermometer scale to address over-heating complaints. | 5th Jul 1937 | Box 94 \ 3 scan0231 | |
| Urgent memo requesting a reply about the availability of fans for overheating Phantom III cars. | 9th Jul 1937 | Box 94 \ 3 scan0232 | |
| Supply of a dozen fans for overheating Phantom III cars. | 12th Jul 1937 | Box 94 \ 3 scan0233 | |
| Request to manufacture parts for a Ph.III radiator bottom tank for water flow tests on W.Bell's rig. | 13th Jul 1937 | Box 94 \ 3 scan0234 | |
| New scheme for a ball type steam valve for the Ph.III radiator. | 15th Jul 1937 | Box 94 \ 3 scan0235 | |
| The dispatch of two pairs of steam valve seatings to different recipients. | 15th Jul 1937 | Box 94 \ 3 scan0236 | |
| Letter to Avon India Rubber Co. regarding the moulding of rubber seatings for steam valves. | 15th Jul 1937 | Box 94 \ 3 scan0237 | |
| Letter to a supplier requesting an improved steam valve seating made from Duprene. | 15th Jul 1937 | Box 94 \ 3 scan0238 | |
| Overheating complaint for chassis 3-AZ-210 owned by Beaumont. | 15th Jul 1937 | Box 94 \ 3 scan0239 | |
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