| Description | Date | Identifier | |
| Table of chassis numbers, body weights, passenger capacities, and spring data for New Phantom models in the U.S.A. | 23th Apr 1926 | Box 67a \ 1 scan0165 | |
| Tabulated data for standard and 20% stiffer rear springs on the New Phantom Chassis, categorised by series and weight. | 24th Apr 1926 | Box 67a \ 1 scan0166 | |
| Preliminary test results for hydraulic dampers on a Phantom suspension system, including a comparative bar chart. | 24th Apr 1926 | Box 67a \ 1 scan0167 | |
| Comparing the suspension and riding comfort of the Phantom and Silver Ghost models. | 24th Apr 1926 | Box 67a \ 1 scan0168 | |
| Summary memo on chassis suspension, covering the roles and interactions of tyres, road springs, and hydraulic dampers. | 25th Apr 1926 | Box 67a \ 1 scan0169 | |
| Vehicle suspension, addressing spring length, stiffness, and the critical importance of effective hydraulic damping. | 25th Apr 1926 | Box 67a \ 1 scan0170 | |
| Improving vehicle handling through front axle design, weight distribution, and suspension adjustments. | 25th Apr 1926 | Box 67a \ 1 scan0171 | |
| Suspension design, road spring control, and ongoing experiments with different schemes. | 26th Apr 1926 | Box 67a \ 1 scan0172 | |
| Confirmation of a telegram requesting results for rating tests on springs. | 26th Apr 1926 | Box 67a \ 1 scan0173 | |
| Calculated position of the centre of percussion for the New Phantom and 20HP chassis. | 26th Apr 1926 | Box 67a \ 1 scan0174 | |
| Telegram requesting the results of rating tests on springs. | 27th Apr 1920 | Box 67a \ 1 scan0175 | |
| Experiments on Phantom suspension, focusing on shock dampers and weight distribution. | 27th Apr 1926 | Box 67a \ 1 scan0176 | |
| Tests confirming the relative merits of hydraulic and friction shock dampers for low-speed riding comfort. | 28th Apr 1926 | Box 67a \ 1 scan0177 | |
| Page discussing the measurement of average spring deflection using a Chronograph for optimal touring performance. | 29th Apr 1926 | Box 67a \ 1 scan0178 | |
| Desirable features of the Lancia Lambda car and recommending its purchase for evaluation. | 29th Apr 1926 | Box 67a \ 1 scan0179 | |
| List of points comparing steering, braking, and suspension characteristics, likely between a Lancia and another vehicle. | 29th Apr 1926 | Box 67a \ 1 scan0180 | |
| Analysis of a vehicle's disadvantages regarding steering, ground clearance and suspension, with proposed improvements. | 29th Apr 1926 | Box 67a \ 1 scan0181 | |
| Examination and description of the front springing and hydraulic dampers of the Lancia Lambda car. | 29th Apr 1926 | Box 67a \ 1 scan0182 | |
| Technical analysis of a car's coil spring suspension system, detailing its operation and performance characteristics. | 29th Apr 1926 | Box 67a \ 1 scan0183 | |
| Continued page describing the characteristics and performance of a variable-rated suspension system. | 29th Apr 1926 | Box 67a \ 1 scan0184 | |
| Brief description of the parts and action of a double-acting plunger type hydraulic damper. | 29th Apr 1926 | Box 67a \ 1 scan0185 | |
| Operation of a hydraulic damper, focusing on oil flow, piston movement, and clearances during compression and rebound. | 29th Apr 1926 | Box 67a \ 1 scan0186 | |
| Continued analysis of damper action, focusing on fluid resistance, rebound, and bump deflection. | 29th Apr 1926 | Box 67a \ 1 scan0187 | |
| Diagrammatic sketch of a damper showing a change in cylinder diameter. | 29th Apr 1926 | Box 67a \ 1 scan0188 | |
| Graph showing the internal friction of a Lancia rear spring by plotting load against deflection. | 26th Apr 1926 | Box 67a \ 1 scan0189 | |
| Load-deflection diagram for a Lancia-Lambda front suspension. | 28th Apr 1926 | Box 67a \ 1 scan0190 | |
| Chassis springing instructions and load calculation worksheet for a specific vehicle. | 16th Dec 1924 | Box 67a \ 1 scan0191 | |
| Springing instructions and weight calculations for a 20 HP Chassis, number 1459. | 25th Jun 1923 | Box 67a \ 1 scan0192 | |
| Clarifying a telegram about spring stiffness and load deflection for the Phantom suspension. | 29th Apr 1926 | Box 67a \ 1 scan0193 | |
| Internal memorandum addressing recurring issues with car suspension being incorrectly sprung for their loads. | 4th May 1926 | Box 67a \ 1 scan0194 | |
| Suspension tests conducted on a Phantom car, comparing standard and weaker front springs. | 1st May 1926 | Box 67a \ 1 scan0195 | |
| Suspension tests on a Phantom Demonstration Landaulet with a Hooper body. | 10th May 1926 | Box 67a \ 1 scan0196 | |
| Requesting an opinion on how to improve the riding comfort of a new Trials Landaulet for demonstration purposes. | 1st Dec 1928 | Box 67a \ 1 scan0197 | |
| Material selection and heat treatment for chassis road springs, comparing Chrome Vanadium and Silico-Manganese steels. | 12th May 1927 | Box 67a \ 1 scan0198 | |
| Experiments with a more fool-proof steel for springs on 20 HP and 40/50 HP models. | 12th May 1927 | Box 67a \ 1 scan0199 | |
| Springing complaint on a Phantom Demonstration Landaulet, recommending fitting new hydraulic dampers. | 13th May 1926 | Box 67a \ 1 scan0200 | |
| Outlining the requirements for various spring and torsion tests. | 14th May 1926 | Box 67a \ 1 scan0201 | |
| Data table for recording readings from a load test taken after oscillation. | 19th May 1926 | Box 67a \ 1 scan0202 | |
| Planned test on the rear spring movement of a Phantom vehicle. | 19th May 1926 | Box 67a \ 1 scan0203 | |
| The dispatch of a Phantom Trials Landaulet for the fitting and testing of hydraulic shock-absorbers. | 19th May 1926 | Box 67a \ 1 scan0204 | |
| Steering difficulty on car 7-LC after fitting low pressure tyres, with a request to test different front tyre pressures. | 22th May 1926 | Box 67a \ 1 scan0205 | |
| Booking boat berths for two cars, 7-LC and 10-EX, for a trip from Folkestone to Boulogne. | 26th May 1926 | Box 67a \ 1 scan0206 | |
| Confirming boat travel arrangements from Dover for two cars and their drivers. | 27th May 1926 | Box 67a \ 1 scan0207 | |
| To add specific springs to the invoice for car 12-EX. | 27th May 1926 | Box 67a \ 1 scan0208 | |
| Front spring rating tests and their impact on ride comfort. | 27th May 1926 | Box 67a \ 1 scan0209 | |
| Continuation page discussing spring load testing methods and results. | 27th May 1926 | Box 67a \ 1 scan0210 | |
| Report analysing the effects of shackle inclination and pad variations on spring performance, referencing several graphs. | 27th May 1926 | Box 67a \ 1 scan0211 | |
| The performance and testing of Woodhead and Standard type leaf springs, comparing calculations with experimental results. | 27th May 1926 | Box 67a \ 1 scan0212 | |
| Front spring rating tests, comparing different configurations via a data table and a list of graphs. | 27th May 1925 | Box 67a \ 1 scan0213 | |
| Two graphs illustrating spring rating tests, comparing shackle angles and different spring systems. | 27th May 1925 | Box 67a \ 1 scan0214 | |
| Two graphs showing spring rating tests, one for shackle angle and the other for pad width. | 27th May 1925 | Box 67a \ 1 scan0215 | |
| Blueprint showing two graphs for spring rating tests, comparing pad widths and spring systems. | 27th May 1925 | Box 67a \ 1 scan0216 | |
| Two graphs illustrating spring rating tests, one on the effect of internal friction and the other on the agreement of independent tests. | 27th May 1925 | Box 67a \ 1 scan0217 | |
| Graph plotting spring rating against total spring load, showing the effect of internal friction under gradual and bump loading. | 27th May 1925 | Box 67a \ 1 scan0218 | |
| Graph of spring rating tests, showing the effect of deflection due to shackle movement. | 27th May 1925 | Box 67a \ 1 scan0219 | |
| Graph plotting the variation of shackle angle against compression for a narrow pad with a 10° inward shackle. | 27th May 1925 | Box 67a \ 1 scan0220 | |
| Graph comparing the performance ratings of a Woodhead's Special Spring and a 1st Standard Spring under varying loads. | 27th May 1925 | Box 67a \ 1 scan0221 | |
| Graph of spring rating tests showing the effect of deflection due to shackle movement. | 28th May 1926 | Box 67a \ 1 scan0222 | |
| Design principles and modifications for hydraulic shock dampers. | 28th May 1926 | Box 67a \ 1 scan0223 | |
| Calculations and test results related to front spring stiffness and shackle inclination. | 9th Jun 1926 | Box 67a \ 1 scan0224 | |
| Customer complaint about front suspension and the feasibility of a rear-mounted spare wheel carrier. | 9th Jun 1926 | Box 67a \ 1 scan0225 | |
| The 'Low Chassis Campaign' and improving comfort by lowering seat cushions. | 10th Jun 1926 | Box 67a \ 1 scan0226 | |
| Steering wander and wobble issues, likely caused by incorrect spring loading and weight distribution. | 16th Jun 1926 | Box 67a \ 1 scan0227 | |
| Tests conducted on hydraulic shock dampers, detailing issues with oil temperature control and the testing methodology. | 16th Jun 1926 | Box 67a \ 1 scan0228 | |
| Continued analysis of oil flow resistance through orifices in hydraulic shock dampers. | 16th Jun 1926 | Box 67a \ 1 scan0229 | |
| Graph from hydraulic shock absorber tests showing the variation of oil flow with pressure. | 1st Jul 1926 | Box 67a \ 1 scan0230 | |
| Difficulties experienced with contact accelerometers for suspension testing. | 1st Jul 1926 | Box 67a \ 1 scan0231 | |
| Accelerometer testing, discussing issues with re-setting points and observations from road tests. | 1st Jul 1926 | Box 67a \ 1 scan0232 | |
| The challenges of measuring riding comfort, comparing accelerometers to crude tests and differentiating between tyre and spring setups. | 12th Jul 1926 | Box 67a \ 1 scan0233 | |
| Test report and recommendation for modifications on the 'Blue Car' Phantom model. | 12th Jul 1926 | Box 67a \ 1 scan0234 | |
| The use of accelerometers to measure riding comfort and discomfort levels in relation to the Phantom suspension. | 15th Jul 1926 | Box 67a \ 1 scan0235 | |
| Ride comfort testing using a water spillage method to compare different vehicle models. | 15th Jul 1926 | Box 67a \ 1 scan0236 | |
| Comparison of various damper and suspension setups through high-speed road tests on different vehicle models. | 5th Jul 1926 | Box 67a \ 1 scan0237 | |
| Series of graphs comparing riding comfort based on shock dampers, shackle angle, tyre pressure, and different car models. | 16th Jul 1926 | Box 67a \ 1 scan0238 | |
| Offer from Westinghouse to fit auxiliary air springs on a Phantom car. | 9th Aug 1926 | Box 67a \ 1 scan0239 | |
| Request for stronger rear springs with a specific poundage for the 12-EX car, models EAC-1 and 2. | 8th Aug 1926 | Box 67a \ 1 scan0240 | |
| The strength of special rear springs for the 117-MC Summers car, noting they are stronger than required. | 21th Aug 1926 | Box 67a \ 1 scan0241 | |
| Table of buffer clearance and wheel weight measurements for the Summers Car. | 31th Aug 1932 | Box 67a \ 1 scan0242 | |
| Complaints regarding bad springing and uncomfortable rear seating on the 40/50 Phantom chassis. | 31th Aug 1932 | Box 67a \ 1 scan0243 | |
| Modified methods for calculating the springing on 40/50 HP chassis concerning rear seats, passenger numbers, and luggage weight. | 6th Sep 1926 | Box 67a \ 1 scan0244 | |
| Technical discussion on chassis suspension dynamics, spring calculations, and the prevention of pitching motion. | 6th Sep 1926 | Box 67a \ 1 scan0245 | |
| Suspension tests comparing a Lancia to a Rolls-Royce, focusing on the effect of rear overhang and spare wheels. | 20th Sep 1926 | Box 67a \ 1 scan0246 | |
| Bar chart comparison of riding comfort tests at 40 MPH, analysing the effect of spare wheels on a Lancia and comparing riding characteristics with a Phantom. | 6th Oct 1926 | Box 67a \ 1 scan0247 | |
| Letter from Melbourne detailing various chassis and engine complaints and suggesting improvements. | 6th Oct 1926 | Box 67a \ 1 scan0248 | |
| Cover letter forwarding information on suspension and detailing corrections for a suspension report. | 10th Oct 1926 | Box 67a \ 1 scan0249 | |
| Technical comparison of the riding quality between a Silver Ghost and a Phantom vehicle. | 11th Oct 1926 | Box 67a \ 1 scan0250 | |
| Principles of suspension, oscillation, and pitching speed in different car models. | 11th Oct 1926 | Box 67a \ 1 scan0251 | |
| Continued report on vehicle suspension dynamics and the effects of various modifications. | 11th Oct 1926 | Box 67a \ 1 scan0252 | |
| Vehicle spring stiffness, ride quality, and oscillation characteristics, with suggestions for further investigation. | 16th Nov 1926 | Box 67a \ 1 scan0253 | |
| Methods to improve the riding and steering qualities of the Phantom model by reducing front wheel weight. | 16th Nov 1926 | Box 67a \ 1 scan0254 | |
| Complaints and recommended alterations for the Phantom model regarding steering, springing, governor, and auto advance. | 20th Nov 1926 | Box 67a \ 1 scan0255 | |
| Steering and braking performance with a new type of front axle. | 21th Dec 1926 | Box 67a \ 1 scan0256 | |
| Technical analysis and proposed solutions for wheel wobble and tramping issues. | 21th Dec 1926 | Box 67a \ 1 scan0257 | |
| Potential remedies for steering issues like 'wobble' and 'tramping', and for curing brake squeaks. | 21th Dec 1926 | Box 67a \ 1 scan0258 | |
| Calculations and specifications for front springs to lower a vehicle. | 21th Jan 1927 | Box 67a \ 1 scan0259 | |
| Springing and hydraulic shock dampers for continental touring. | 21th Jan 1927 | Box 67a \ 1 scan0260 | |
| Agreement with contentions on chassis inertia and spring periodicity affecting riding qualities. | 31th Dec 1926 | Box 67a \ 1 scan0261 | |
| Order for two front springs for Chassis 10-EX with specific camber and rating details. | 2nd Feb 1927 | Box 67a \ 1 scan0262 | |
| Spring suspension, including issues with 'pitching', carrying spare wheels on the Phantom, and testing Westinghouse air springs. | 7th Feb 1927 | Box 67a \ 1 scan0263 | |
| Decision on rear spring clearances for vehicles intended for Continental use. | 12th Feb 1927 | Box 67a \ 1 scan0264 | |
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