| Description | Date | Identifier | |
| Engine overheating to 95°C and boiling, with details of a sticking valve that was subsequently resolved. | 11th May 1922 | Morton \ M1.2 img002 | |
| List of special parts and features fitted to a specific car. | 11th May 1922 | Morton \ M1.2 img003 | |
| 5-Goshawk-11 electrical units after a 10,000 miles test. | 12th May 1922 | Morton \ M1.2 img004 | |
| The performance and wear of electrical components including the high tension rotor, distribution board, cut-out, and dynamo commutators. | 12th May 1922 | Morton \ M1.2 img005 | |
| The condition of various electrical components including the horn, lamps, starter motor, and wiring. | 12th May 1922 | Morton \ M1.2 img006 | |
| Telegram received by telephone reporting a burst dynamo and requesting a replacement machine. | 12th May 1922 | Morton \ M1.2 img007 | |
| Justification for fitting a thermometer to the Goshawk engine cooling system. | 13th May 1922 | Morton \ M1.2 img008 | |
| The 10,000-mile test of the 5-Goshawk-11 car in France, detailing road conditions and component failures. | 17th May 1922 | Morton \ M1.2 img009 | |
| Continued report listing worn parts, the mileage of Goshawk cars, and an engine condition assessment. | 17th May 1922 | Morton \ M1.2 img010 | |
| Performance issues and complaints regarding the Goshawk-11 engine and associated drivetrain components. | 17th May 1922 | Morton \ M1.2 img011 | |
| Wear, breakages, and proposed improvements for rear axle and spring components on Goshawk models. | 17th May 1922 | Morton \ M1.2 img012 | |
| Spring, frame, and steering failures and suggested improvements for Goshawk models. | 17th May 1922 | Morton \ M1.2 img013 | |
| Wear, damage, and potential improvements for various components including steering, petrol tank, brakes, and radiator. | 15th May 1922 | Morton \ M1.2 img014 | |
| Engine misfiring issue caused by a faulty low tension terminal connection. | 15th May 1922 | Morton \ M1.2 img015 | |
| Journey to France, detailing a dynamo failure and observations on the car's handling and performance. | 15th May 1922 | Morton \ M1.2 img016 | |
| Engine rattles, oil consumption, and an urgent request for a replacement dynamo. | 17th May 1922 | Morton \ M1.2 img017 | |
| Failure of a dynamo commutator from a Goshawk-II car. | 17th May 1922 | Morton \ M1.2 img018 | |
| Letter investigating the cause of a valve sticking open. | 15th May 1922 | Morton \ M1.2 img019 | |
| List of urgent experimental parts and agreed modifications required for Goshawk cars. | 15th May 1922 | Morton \ M1.2 img020 | |
| Continued list of component modifications and additions. | 16th May 1927 | Morton \ M1.2 img021 | |
| Report from a driver detailing daily mileage, total trip mileage, and a fault concerning a broken glass screen. | 16th May 1927 | Morton \ M1.2 img022 | |
| Letter discussing the adoption and modification of a Bijur Dynamo & Regulator for a 12-volt system. | 30th Jan 1918 | Morton \ M1.3 img001 | |
| Modifications to a Bijur Dynamo & Regulator. | 30th Jan 1918 | Morton \ M1.3 img002 | |
| Fitting of a Bijur dynamo for experimental work, including pulley and belt specifications. | 19th Feb 1918 | Morton \ M1.3 img003 | |
| Hand-drawn diagram illustrating a wall-mounted, pivoting dynamo driven by a belt and pulley system. | 13th Aug 1918 | Morton \ M1.3 img004 | |
| The temporary installation of a dynamo, requesting correct belting and troubleshooting issues with rotation and overheating. | 13th Aug 1918 | Morton \ M1.3 img005 | |
| Requisition list for electrical supplies for drawing boards. | 13th Aug 1918 | Morton \ M1.3 img006 | |
| Alterations to the wiring specifications for a drawing office lighting installation at West Wittering. | 31th Aug 1918 | Morton \ M1.3 img007 | |
| Specifications and sourcing of electrical components for lamps and insulators. | 1st Apr 1911 | Morton \ M1.3 img008 | |
| Replacement and specifications of a Bijur dynamo. | 6th Feb 1919 | Morton \ M1.3 img009 | |
| Order for lamps, batteries, and other electrical components for car and office lighting at West Wittering. | 13th Feb 1919 | Morton \ M1.3 img010 | |
| Request to obtain various tools and materials for Mr. Royce, to be charged to his account for West Wittering. | 1st Mar 1919 | Morton \ M1.3 img011 | |
| Proposal to increase the lamp size for drawing boards at the West Wittering lighting installation. | 7th Jul 1919 | Morton \ M1.3 img012 | |
| Request to supply one negative junction plate for the switchboard of a lighting installation at Elmstead. | 20th Sep 1919 | Morton \ M1.3 img013 | |
| Requesting the production of two main pole fuse bases for the Elmstead lighting installation. | 9th Sep 1919 | Morton \ M1.3 img014 | |
| Requesting the manufacture of three distribution and fuse boxes for a lighting installation at West Wittering. | 17th Sep 1919 | Morton \ M1.3 img015 | |
| Requesting a delivery date for parts required for the West Wittering Lighting Installation. | 3rd Oct 1919 | Morton \ M1.3 img016 | |
| Three requested modifications by Mr. Royce for distribution boxes for West Wittering. | 1st Oct 1919 | Morton \ M1.3 img017 | |
| Performance of various lamps and a noisy dynamo in a lighting installation. | 16th Mar 1920 | Morton \ M1.3 img018 | |
| Continued internal memo from R. to C.K. regarding a scheme for storing models in a box. | 1st Mar 1920 | Morton \ M1.3 img019 | |
| Proposing the construction of a single-cylinder test engine for components and a personal power plant. | 26th Jun 1920 | Morton \ M1.3 img020 | |
| Failure of a 12/14 volt Mazda half-watt lamp during a test period. | 6th Aug 1920 | Morton \ M1.3 img021 | |
| Request for a replacement exhaust valve made of quickstep chromium steel for a lighting engine at West Wittering. | 17th Nov 1920 | Morton \ M1.3 img022 | |
| Different armature designs and configurations for creating silent dynamos. | 10th Oct 1921 | Morton \ M1.3 img023 | |
| Cold weather starting issues with two different cars, a battery fault, and ignition efficiency. | 15th Nov 1921 | Morton \ M1.3 img024 | |
| Issues with spark plug 'oxydisation' and fouling, sending samples for analysis. | 25th Jun 1925 | Morton \ M1.3 img025 | |
| Request for two custom brass plates for a lighting set, with a hand-drawn sketch and dimensions for Mr. Royce's private account. | 11th Nov 1920 | Morton \ M1.3 img026 | |
| Design recommendations for the Goshawk 11 model, covering the water pump, exhaust pipe, fan lubrication, steering stops, and radiator vent pipe. | 15th Nov 1921 | Morton \ M1.4 img001 | |
| Goshawk 11 chassis bump test report detailing multiple failures of the rear leaf spring and a front support bracket. | 15th Nov 1921 | Morton \ M1.4 img002 | |
| The failure of rear spring brackets and springs during a bump test on a Goshawk 11. | 17th Nov 1921 | Morton \ M1.4 img003 | |
| Urgently required designs for the Goshawk II car following failures in bump testing and to build a chassis for Mr. Royce. | 17th Nov 1921 | Morton \ M1.4 img004 | |
| Supply and cost of condensers for the 40/50 chassis, comparing in-house production with external supplier Dubilier. | 24th Nov 1921 | Morton \ M1.4 img005 | |
| Front axle failure during the Goshawk 11 bump test, urging immediate modifications. | 26th Nov 1931 | Morton \ M1.4 img006 | |
| Telegram confirmation regarding the cause of a roar and a suggested exhaust modification. | 4th Nov 1921 | Morton \ M1.4 img007 | |
| On a Goshawk 11 bump test front axle failure and the urgent need for modifications. | 26th Nov 1931 | Morton \ M1.4 img008 | |
| The design and fitting instructions for the 'Goshawk II' magneto drive. | 5th Nov 1921 | Morton \ M1.4 img009 | |
| The supply and production of electrical equipment for the Goshawk II. | 9th Nov 1921 | Morton \ M1.4 img010 | |
| Incorrect attempt to force bakelite between commutator plates. | 1st Nov 1921 | Morton \ M1.4 img011 | |
| Index of discussion points for a visit to West Wittering regarding the 'Goshawk II' and '40/50 HP' chassis. | 9th Nov 1921 | Morton \ M1.4 img012 | |
| Various mechanical issues found on the Goshawk II, including oil leaks and structural failures. | 7th Nov 1921 | Morton \ M1.4 img013 | |
| Front engine support, engine vibration, engine roar, and battery ignition. | 1st Nov 1921 | Morton \ M1.4 img014 | |
| From 'R' to 'BY' detailing issues and proposed improvements for various engine components, including the Goshawk II. | 9th Nov 1921 | Morton \ M1.4 img015 | |
| Modifications to various vehicle components including axles, brakes, and induction systems. | 9th Nov 1921 | Morton \ M1.4 img016 | |
| Technical memo discussing various engine and chassis components including bearings, valves, and the gearbox. | 1st Nov 1921 | Morton \ M1.4 img017 | |
| Faults found in the 40/50 HP chassis, including issues with the tool kit, induction system, and throttle. | 9th Nov 1921 | Morton \ M1.4 img018 | |
| Running of the 'Goshawk II' chassis and necessary improvements for production. | 9th Nov 1921 | Morton \ M1.4 img019 | |
| Over-oiling issues in the 'Goshawk II' engine, discussing new drawings and piston modifications. | 10th Nov 1921 | Morton \ M1.4 img020 | |
| Proposing a road test for the 'Goshawk II' to observe the efficiency of a fitted improvement. | 1st Nov 1921 | Morton \ M1.4 img021 | |
| Requesting a revised list of alterations for the 'Goshawk II' engine. | 16th Nov 1921 | Morton \ M1.4 img022 | |
| Requesting models and prices for competitor dynamos for the Goshawk II engine. | 11th Nov 1921 | Morton \ M1.4 img023 | |
| Status update on the electrical work for the 'Goshawk II' model, discussing components and material sourcing. | 21th Nov 1921 | Morton \ M1.4 img024 | |
| Invisible wiring for lamps, Klaxon horn fittings, and switchboards for the 'Goshawk II' and 40/50 HP models. | 26th Nov 1921 | Morton \ M1.4 img025 | |
| 'Goshawk II' equipment, the drawbacks of fitting novelties like front-wheel brakes, and competitive positioning against Isotta and Delage. | 26th Nov 1921 | Morton \ M1.4 img026 | |
| Confirmation of a message regarding the rearrangement of a battery ignition condenser. | 28th Nov 1921 | Morton \ M1.4 img027 | |
| Progress report on the development and testing of mica and paper condensers for the 'Goshawk' ignition system. | 1st Dec 1921 | Morton \ M1.5 img001 | |
| Visit from an insulation supplier regarding varnishes and impregnated paper for condensers. | 1st Dec 1921 | Morton \ M1.5 img002 | |
| Issues with the Bendix Drive on the 'Goshawk 11' and proposing solutions for its electrical equipment. | 2nd Dec 1921 | Morton \ M1.5 img003 | |
| The optimal placement of the oil filler for the Goshawk 11 engine crankcase. | 5th Dec 1921 | Morton \ M1.5 img004 | |
| Telegram message from Royce regarding parts for armoured cars for Mr Platford. | 6th Dec 1921 | Morton \ M1.5 img005 | |
| Progress report on the production and testing of different types of condensers for 'Goshawk' ignition. | 6th Dec 1921 | Morton \ M1.5 img006 | |
| Alternative materials, like aluminium foil and oiled silk, for use in condensers. | 16th Jan 1921 | Morton \ M1.5 img007 | |
| The results of a bump test on a Goshawk 11 chassis, noting frame deformation and component failures. | 1st Dec 1921 | Morton \ M1.5 img008 | |
| On the Goshawk 11 radiator fixing bumping test, explaining that the design's flexibility is intentional and expressing satisfaction with the current scheme. | 9th Dec 1921 | Morton \ M1.5 img009 | |
| Chassis frame failure on a Goshawk 11 during a bump test, with recommendations for material and design changes. | 1st Dec 1921 | Morton \ M1.5 img010 | |
| Design, materials, and capacity for the R.R. Goshawk Condenser. | 9th Dec 1921 | Morton \ M1.5 img011 | |
| The design of an electrical component involving electrodes, dielectrics, and a brass case. | 26th Apr 1917 | Morton \ M1.5 img012 | |
| Broken Goshawk 11 front axle, discussing potential design flaws and the critical importance of reliable forging suppliers. | 1st Dec 1921 | Morton \ M1.5 img013 | |
| From 'Da.' to 'Hs.' requesting information on a fractured front axle (X4263 re G.11) to determine the cause. | 13th Dec 1921 | Morton \ M1.5 img014 | |
| Suggesting a scissor-construction rear shock absorber for the Goshawk II model to prevent fouling the rear spring. | 12th Dec 1921 | Morton \ M1.5 img015 | |
| Completion of the Goshawk model, focusing on the electrical system, ignition, starter, and dynamo designs. | 29th Dec 1921 | Morton \ M1.5 img016 | |
| Readiness of dynamos and proposed changes to switchboxes, distributing boards, and lanterns. | 26th Apr 1917 | Morton \ M1.5 img017 | |
| Outstanding points to resolve for the start of production on the Goshawk II engine and chassis. | 30th Dec 1921 | Morton \ M1.5 img018 | |
| Sketch of an automatic gear shifting device for an electric starter, shown in the disengaged position. | 16th Dec 1921 | Morton \ M1.5 img019 | |
| Cross-sectional sketch of an automatic gear shifting device for an electric starter. | 16th Dec 1921 | Morton \ M1.5 img020 | |
| Blueprint of an automatic gear shifting device for an electric starter. | 16th Feb 1921 | Morton \ M1.5 img021 | |
| Reporting a repeated frame fracture on a Goshawk 11 chassis during bump testing. | 1st Dec 1921 | Morton \ M1.5 img022 | |
| Vehicle suspension, gear box noises, and customer complaint handling, with reference to Rudyard Kipling's car. | 31th Aug 1921 | Morton \ M1.6 img001 | |
| Potential modifications to increase vehicle speed, focusing on the ignition system, gear ratio, and bodywork. | 10th Oct 1921 | Morton \ M1.6 img002 | |
| Engine and chassis modifications for achieving high-speed performance. | 11th Oct 1921 | Morton \ M1.6 img003 | |
| Proposed induction pipe with a single carburettor for 'Eagles' engines in tanks. | 12th Sep 1921 | Morton \ M1.6 img004 | |
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