| Description | Date | Identifier | |
| Specification table for standard dynamo and motor sizes for large and small cars. | 5th Jul 1921 | Box 61b \ 3 scan0134 | |
| Special volt-ampere characteristic of battery and leads for starter motor belt tests. | 8th Jul 1921 | Box 61b \ 3 scan0135 | |
| Starter motor tests carried out on car 4-EX. | 20th Jul 1921 | Box 61b \ 3 scan0136 | |
| Test results for a standard motor under cold and hot conditions, detailing performance metrics. | 11th Aug 1930 | Box 61b \ 3 scan0137 | |
| Performance test data for a motor with field coils in parallel under cold and hot conditions. | 11th Aug 1920 | Box 61b \ 3 scan0138 | |
| Comparison of motor performance under various voltage and temperature conditions. | 11th Aug 1920 | Box 61b \ 3 scan0139 | |
| Inspection and return of a Lucas starter motor. | 4th Aug 1921 | Box 61b \ 3 scan0140 | |
| Letter to The Lucas Elec. Co. Ltd. regarding aircraft set connections, a vibrator regulator, dynamo fuse wire, and a starter motor. | 4th Aug 1921 | Box 61b \ 3 scan0141 | |
| Standard volt-ampere characteristics and resistance limits for starter motor batteries, leads and cables. | 26th Aug 1921 | Box 61b \ 3 scan0142 | |
| Defining the standard resistance and limits for high-rate discharge tests on batteries. | 1st Sep 1921 | Box 61b \ 3 scan0143 | |
| Performance characteristics of starter motors and batteries, referencing notes from the U.S.A. | 13th Sep 1921 | Box 61b \ 3 scan0144 | |
| Continued report on defining battery internal resistance limits for starter motor operation. | 13th Sep 1921 | Box 61b \ 3 scan0145 | |
| Revised high-rate battery discharge testing procedures and specifications. | 13th Sep 1921 | Box 61b \ 3 scan0146 | |
| Battery characteristics and their effect on starter motor performance, referencing specific test reports and curves. | 13th Sep 1921 | Box 61b \ 3 scan0147 | |
| Starter motor performance, comparing 12-volt systems, batteries, and cables with American S.A.E. standards. | 13th Sep 1921 | Box 61b \ 3 scan0148 | |
| Starter motor brake tests and the relative merits of using a torque base versus an ampere base for plotting results. | 13th Sep 1921 | Box 61b \ 3 scan0149 | |
| Procedural document outlining various tests to be performed on a motor. | 13th Dec 1921 | Box 61b \ 3 scan0150 | |
| Standardisation of the terms 'advance' and 'retard' for dynamos and starter motors. | 2nd Feb 1922 | Box 61b \ 3 scan0151 | |
| Continued technical note explaining the effects of advancing and retarding brushes on motor and dynamo output. | 18th Feb 1922 | Box 61b \ 3 scan0152 | |
| Comparative test report on a direct drive flywheel starter versus the usual gearbox starter equipment. | 18th Feb 1922 | Box 61b \ 3 scan0153 | |
| Comparison of different starter motor arrangements, including C.A.V., Bendix, and flywheel types. | 18th Feb 1922 | Box 61b \ 3 scan0154 | |
| Letter from Penfold & Randall offering patent rights for a new Dynamo and Starter. | 29th Jun 1922 | Box 61b \ 3 scan0155 | |
| Typed letter declining interest in a patent dynamo and starter. | 1st Jul 1922 | Box 61b \ 3 scan0156 | |
| Comparison table of various starter motors suitable for large cars, detailing their dimensions. | 1st Jun 1921 | Box 61b \ 3 scan0157 | |
| Comparison table of starter motor specifications for small cars. | 25th Feb 1921 | Box 61b \ 3 scan0158 | |
| Table of dimensions for dynamos and motors for large and small cars. | 18th Apr 1923 | Box 61b \ 3 scan0159 | |
| Accompanying curves of brake efficiency tests and slot diagrams for various starter motors. | 3rd May 1923 | Box 61b \ 3 scan0160 | |
| The general relations and formulas for starter motors. | 3rd May 1923 | Box 61b \ 3 scan0161 | |
| Page of typed and handwritten physics equations relating to motor torque, flux, and conductors. | 25th Feb 1924 | Box 61b \ 3 scan0162 | |
| Comparative performance curve graph for different starting motors. | 25th Feb 1924 | Box 61b \ 3 scan0163 | |
| Graph showing starting motor performance requirements and characteristics against amperage. | 13th Dec 1923 | Box 61b \ 3 scan0164 | |
| Graph of performance curves comparing various starting motors by amperage. | 8th Mar 1976 | Box 61b \ 3 scan0165 | |
| Whether to include the 'penny trick' for cold starting an engine in the 40/50 HP instruction book. | 1st May 1921 | Box 61b \ 3 scan0166 | |
| Test procedure sheet for motors, detailing five different test scenarios and power calculation formulas. | 28th Apr 1925 | Box 61b \ 3 scan0167 | |
| Use of thinner stampings for a 20 HP starter motor. | 18th Nov 1925 | Box 61b \ 3 scan0168 | |
| Cross-reference note for correspondence regarding a 20 HP starter motor. | 18th Nov 1925 | Box 61b \ 3 scan0169 | |
| Cross-reference note for correspondence relating to solid poles for the 20 HP starter motor. | 1st Dec 1926 | Box 61b \ 3 scan0170 | |
| Specification of inspection and test procedures for the Goshawk starter motor. | 1st Dec 1926 | Box 61b \ 3 scan0171 | |
| Test procedure for a motor, detailing the 'light test' parameters and fault diagnosis. | 1st Dec 1926 | Box 61b \ 3 scan0172 | |
| Procedure document detailing the load test for a motor. | 1st Dec 1926 | Box 61b \ 3 scan0173 | |
| The effects of magnetic circuits and resistances on motor performance during load tests. | 1st Dec 1926 | Box 61b \ 3 scan0174 | |
| Test procedures for an electric motor, detailing an intermittent load test and notes on examining brushes and commutators. | 1st Dec 1926 | Box 61b \ 3 scan0175 | |
| Insulation breakdown and resistance test procedures. | 8th Dec 1926 | Box 61b \ 3 scan0176 | |
| Standardization of solid pole pieces for 20 HP dynamos and starter motors. | 8th Dec 1926 | Box 61b \ 3 scan0177 | |
| Extract discussing the standardisation of laminated dynamo and motor poles to solid poles for cost savings. | 8th Dec 1926 | Box 61b \ 3 scan0178 | |
| Data sheet appendix specifying standard dimensions for starting motors from various manufacturers. | 1st Dec 1924 | Box 61b \ 3 scan0179 | |
| Specification sheet for barrel mountings, listing compatible yoke diameters for various manufacturers and their contact details. | 1st Jun 1926 | Box 61b \ 3 scan0180 | |
| Specification sheet detailing motor brush dimensions for various vehicle models. | 5th Jan 1927 | Box 61b \ 3 scan0181 | |
| Order be placed for a further supply of sequence starter motor brushes. | 22th Jan 1927 | Box 61b \ 3 scan0182 | |
| Change notice for a starter motor, specifying brushes with longer flexes. | 26th Jan 1927 | Box 61b \ 3 scan0183 | |
| Listing blueprints for new parts required for a sequence starter motor commutator. | 26th Jan 1927 | Box 61b \ 3 scan0184 | |
| Agreeing to exclude dynamo and starter motor brushes from the spares kit, but not an L.T. Screw or Rocker Arm. | 21th Feb 1927 | Box 61b \ 3 scan0185 | |
| Test procedures for a starter motor, model X.543. | 21th Apr 1927 | Box 61b \ 3 scan0186 | |
| Test procedure for determining friction and plotting quantities, including horsepower calculation formulas. | 5th May 1927 | Box 61b \ 3 scan0187 | |
| Standardisation of punched armature plates for the 40/50 starter motor. | 5th May 1927 | Box 61b \ 3 scan0188 | |
| Table of figures comparing chassis starter rolling conditions for various motor models. | 11th May 1927 | Box 61b \ 3 scan0189 | |
| Standardisation of punched armature plates for dynamos and motors. | 23th May 1927 | Box 61b \ 3 scan0190 | |
| Comparison table of specifications for various starter motors for small cars. | 23th May 1927 | Box 61b \ 3 scan0191 | |
| Using punched armature plates for the Phantom chassis starter motor, delaying the 20 HP motor. | 24th May 1927 | Box 61b \ 3 scan0192 | |
| Comparative table of specifications for various starter motors. | 24th May 1927 | Box 61b \ 3 scan0193 | |
| Comparison table of technical specifications for four different starter motors for small cars. | 21th Jun 1927 | Box 61b \ 3 scan0194 | |
| The use of punched armature plates for a 20 HP motor. | 21th Jun 1927 | Box 61b \ 3 scan0195 | |
| The use of punched armature plates in dynamos and motors, specifically the 40/50 motor and 20 HP models. | 10th Nov 1927 | Box 61b \ 3 scan0196 | |
| Continuation of starter motor comparison tables for 40/50 HP size, Group A models. | 10th Nov 1927 | Box 61b \ 3 scan0197 | |
| Continuation page of a table detailing specifications for various starter motors. | 10th Nov 1927 | Box 61b \ 3 scan0198 | |
| Comparison table of dimensions and weights for various starter motors for the 40/50 HP size engine. | 10th Nov 1927 | Box 61b \ 3 scan0199 | |
| Comparative table of specifications for various starter motor models. | 10th Nov 1927 | Box 61b \ 3 scan0200 | |
| Table of specifications for various starter motors, continued from a previous page. | 10th Nov 1927 | Box 61b \ 3 scan0201 | |
| Comparison table of starter motor dimensions and weights for 40/50 HP size models. | 10th Nov 1927 | Box 61b \ 3 scan0202 | |
| Comparison table of technical specifications for two different starter motors. | 10th Nov 1927 | Box 61b \ 3 scan0203 | |
| Specifications table comparing two starter motors, a Robert Bosch and an R.R. E.A.C model. | 10th Nov 1927 | Box 61b \ 3 scan0204 | |
| Comparison table of dimensions and weights for various 20 HP size starter motors. | 10th Nov 1927 | Box 61b \ 3 scan0205 | |
| Continuation of a table detailing specifications for various starter motors. | 10th Nov 1927 | Box 61b \ 3 scan0206 | |
| Comparison table of specifications for various starter motors. | 15th Jul 1929 | Box 61b \ 3 scan0207 | |
| Procedure for conducting brake and flux tests on a starter motor. | 15th Jul 1929 | Box 61b \ 3 scan0208 | |
| Procedure for conducting a static torque test on a motor, including data recording and calculation formulas. | 14th May 1930 | Box 61b \ 3 scan0209 | |
| Arrangement and accessibility of motor and dynamo terminals on the Phantom and 20/25 HP models. | 14th May 1930 | Box 61b \ 3 scan0210 | |
| Condition report for a Motor T7LX from 14 GTV after a 17,000-mile road test. | 29th May 1930 | Box 61b \ 3 scan0211 | |
| Inspection report on a motor's bearings, pinion teeth, and flywheel ring. | 8th Dec 1924 | Box 61b \ 3 scan0212 | |
| The inaccessibility of the starter motor terminals on the Phantom II & 20/25 chassis. | 29th May 1930 | Box 61b \ 3 scan0213 | |
| Simplified sequence starter for the 20/25 chassis. | 8th Jan 1931 | Box 61b \ 3 scan0214 | |
| The performance of CM5H brushes in sequence starter motors. | 12th Jan 1931 | Box 61b \ 3 scan0215 | |
| Instruction sheet with handwritten notes regarding a machine failure and component condition. | 14th May 1930 | Box 61b \ 3 scan0216 | |
| Test report on a 20/25 starter motor drive fitted with a stronger spring to prevent undue slipping. | 22th Jan 1931 | Box 61b \ 3 scan0217 | |
| Investigation into a starter motor and auto switch failure on chassis 70.XJ due to contamination and incorrect reassembly. | 20th Feb 1931 | Box 61b \ 3 scan0218 | |
| Phantom II starter motor failure and the proposal to add a circuit diagram to the main switch cover. | 25th Feb 1931 | Box 61b \ 3 scan0219 | |
| Inspection report on a Sequence Starter Motor from car 9 Ex after 26,700 miles. | 3rd Mar 1924 | Box 61b \ 3 scan0220 | |
| Inspection report noting component condition, highlighting issues with teeth, terminals, and support, recommending quality improvement. | 8th Dec 1924 | Box 61b \ 3 scan0221 | |
| Limitations of the Bijur starter motor and proposing alternatives for the Japan 3 model. | 3rd Mar 1931 | Box 61b \ 3 scan0222 | |
| Discussion comparing the suitability of a foot-operated starter versus a sequence starter and other alternatives. | 3rd Mar 1931 | Box 61b \ 3 scan0223 | |
| Starter motor engagement issues with the Phantom II during frosty weather. | 5th Mar 1931 | Box 61b \ 3 scan0224 | |
| 19-EX starter motor jamming and a request for a bench examination. | 10th Mar 1931 | Box 61b \ 3 scan0225 | |
| Request to remove and examine the starter motor from car 19-EX and inspect the flywheel teeth. | 10th Mar 1931 | Box 61b \ 3 scan0226 | |
| Technical note on Phantom II sequence starter engagement issues and a proposed experiment using helical teeth. | 18th Mar 1931 | Box 61b \ 3 scan0227 | |
| Experimenting with a 7.5 degree spiral pinion and gear ring for the Phantom II sequence starter gear. | 9th Mar 1931 | Box 61b \ 3 scan0228 | |
| Recurring starter motor failures during chassis testing and the urgency of resolving the issue. | 19th Mar 1931 | Box 61b \ 3 scan0229 | |
| Malfunctioning starter motor (No. N15U) on a L.H. Ph.II Chassis. | 19th Mar 1931 | Box 61b \ 3 scan0230 | |
| Cold-weather test on a Phantom II starter motor to diagnose failures caused by congealed oil. | 21th Mar 1931 | Box 61b \ 3 scan0231 | |
| Failure analysis of a sequence starter motor after a 25,000-mile test. | 24th Mar 1931 | Box 61b \ 3 scan0232 | |
| Instructions regarding a motor test, noting issues with low torque and excessive lubrication at the commutator end. | 8th Dec 1924 | Box 61b \ 3 scan0233 | |
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