| Description | Date | Identifier | |
| List of modifications to engine components and the schedule and results of subsequent performance tests. | 21th Feb 1933 | Box 179b \ 3 img277 | |
| Engine performance tests, including power consumption, boost curves, and fuel rating considerations. | 21th Feb 1933 | Box 179b \ 3 img278 | |
| Graph showing altitude rating tests for the Goshawk I engine at 2600 RPM. | 21th Feb 1933 | Box 179b \ 3 img279 | |
| Rated altitude power curve for Goshawk I engines at 12,000 ft altitude. | 21th Feb 1933 | Box 179b \ 3 img280 | |
| Blueprint graph of constant boost performance curves for the Goshawk I engine. | 25th Jul 1935 | Box 179b \ 3 img281 | |
| Power and consumption curves for a Goshawk I engine. | 25th Jul 1935 | Box 179b \ 3 img282 | |
| Power consumption curves for the Goshawk I engine under various conditions. | 25th Jul 1935 | Box 179b \ 3 img283 | |
| Performance curve showing the fuel consumption loop for a Goshawk I engine at rated boost. | 23th Feb 1933 | Box 179b \ 3 img284 | |
| Wear balance between front and rear brakes for Dansport. | 23th Feb 1933 | Box 179b \ 3 img285 | |
| Transcribing a cable from Mr. Lovesey regarding Sir Malcolm Campbell's 'Bluebird' car record attempt. | 23th Feb 1933 | Box 179b \ 3 img286 | |
| Preliminary development test report for 'R' engine number R27, intended to inform 'Griffon' engine design. | 28th Feb 1933 | Box 179b \ 3 img287 | |
| Carburettor settings and results from an endurance and full throttle test. | 28th Feb 1933 | Box 179b \ 3 img288 | |
| Engine oil temperatures and its return to the Fitting Shop for examination. | 28th Feb 1933 | Box 179b \ 3 img289 | |
| Testing, performance, and leakage of Luvax shock absorbers. | 2nd Mar 1933 | Box 179b \ 3 img290 | |
| The high-speed performance testing of two Continental Phantom II cars at Brooklands Track. | 3rd Mar 1933 | Box 179b \ 3 img291 | |
| Visit from the Air Ministry to discuss the Junker two-stroke compression ignition engine. | 3rd Mar 1933 | Box 179b \ 3 img292 | |
| Revisions to an engine specification for the Air Ministry, covering performance, consumption, and design comparisons. | 1st Mar 1933 | Box 179b \ 3 img293 | |
| C.I. four-stroke engine, Ethylene Glycol coolant tests on the Kestrel engine, and government research support. | 1st Mar 1933 | Box 179b \ 3 img294 | |
| Semi-expanding carburetter for the Phantom II, noting an approximate 7 B.HP gain. | 4th Mar 1933 | Box 179b \ 3 img295 | |
| Blueprint graph comparing the power output of a Phantom II engine with standard versus larger expanding carburettors. | 3rd Mar 1933 | Box 179b \ 3 img296 | |
| Blueprint graph of engine performance curves plotting BHP, MEP and pressures against RPM. | 3rd Mar 1933 | Box 179b \ 3 img297 | |
| Investigation into the value of the redistributor induction system (DES.1653) for Goshawk engines. | 6th Mar 1933 | Box 179b \ 3 img298 | |
| Test results comparing an induction system with and without a redistributor, and comparisons between Kestrel and Goshawk engines. | 3rd Mar 1933 | Box 179b \ 3 img299 | |
| Two graphs comparing specific fuel consumption against B.HP for an induction system, with and without a redistributor. | 17th Mar 1933 | Box 179b \ 3 img300 | |
| Two graphs showing specific consumption loops for a DES 1653 induction system at different throttle settings. | 3rd Mar 1933 | Box 179b \ 3 img301 | |
| Consumption loop charts for Goshawk engines comparing the performance of the induction system with and without a redistributor. | 8th Mar 1933 | Box 179b \ 3 img302 | |
| Water flow tests for two-piece cylinders in Kestrel engine production. | 8th Mar 1933 | Box 179b \ 3 img303 | |
| Fitting a water pump to the Kestrel engine to fulfil A.P.1208 requirements. | 8th Mar 1933 | Box 179b \ 3 img304 | |
| Graph of water pump flow and pressure performance at varying engine speeds for two-piece cylinder blocks. | 7th Mar 1933 | Box 179b \ 3 img305 | |
| Performance curve graph of water pump flows for Kestrel supercharged engines at constant speed with varying inlet temperature. | 7th Mar 1933 | Box 179b \ 3 img306 | |
| Performance curve graph for a water pump on a Kestrel supercharged engine. | 7th Mar 1933 | Box 179b \ 3 img307 | |
| The overheating of engine oil in the Peregrine engine, discussing heat sources and potential reduction methods. | 13th Mar 1933 | Box 179b \ 3 img308 | |
| Analysis of permissible oil temperatures, bearing conditions, and heat generation in Peregrine engines. | 13th Mar 1933 | Box 179b \ 3 img309 | |
| Analysis of heat dissipation from plain and ribbed engine oil sumps at various speeds. | 13th Mar 1933 | Box 179b \ 3 img310 | |
| Oil turbulence in the sump, reduced oil pressure, and a performance comparison with a Bensport model. | 13th Mar 1938 | Box 179b \ 3 img311 | |
| Comparison of engine and oil cooler performance, including road test observations. | 18th Mar 1933 | Box 179b \ 3 img312 | |
| Summary of findings on oil cooling, oil consumption, and the performance of different sump designs. | 13th Mar 1933 | Box 179b \ 3 img313 | |
| Index of reports regarding tests on engine bearings, oil pressure, consumption, and temperature. | 15th Jan 1933 | Box 179b \ 3 img314 | |
| Diagram of the oil-tank arrangement used in measuring heat flow on Peregrine II engine units 3 & 4. | 8th Feb 1933 | Box 179b \ 3 img315 | |
| Graph plotting heat dissipated to the cooler versus oil discharge through bearings for a 6 Cylinder Falcon engine at different compression ratios. | 8th Feb 1933 | Box 179b \ 3 img316 | |
| Graph showing running temperature test results and failure points for white metal bearings at various speeds and loads. | 8th Feb 1933 | Box 179b \ 3 img317 | |
| Photograph of the internal view of an engine crankcase or sump with oil piping. | 8th Feb 1933 | Box 179b \ 3 img318 | |
| Two graphs showing oil consumption for a Silver Ghost engine and heat generation from a Peregrine oil pump. | 8th Feb 1933 | Box 179b \ 3 img319 | |
| Test report on engine oil temperature at the bearings under various conditions. | 8th Feb 1933 | Box 179b \ 3 img320 | |
| Two graphs illustrating Peregrine oil temperature improvements and Potts oil cooler efficiency. | 8th Feb 1933 | Box 179b \ 3 img321 | |
| Graph comparing the total heat given to oil by a Peregrine engine compared with two other aircraft engines. | 8th Feb 1933 | Box 179b \ 3 img322 | |
| Graph comparing heat transfer to oil against RPM for Peregrine, Curtiss, and Bensport engines. | 8th Feb 1933 | Box 179b \ 3 img323 | |
| Graph plotting temperatures taken on a 6-cylinder Falcon engine test with an 8/1 compression ratio. | 8th Feb 1933 | Box 179b \ 3 img324 | |
| Blueprint showing a thermocouple installation in a bearing shell and a corresponding performance graph. | 8th Feb 1933 | Box 179b \ 3 img325 | |
| Two graphs showing Peregrine engine oil temperature tests comparing sump designs and radiator shutter settings. | 8th Feb 1933 | Box 179b \ 3 img326 | |
| Comparison of ribbed and plain sumps under varying oil pressures and flow conditions against road speed. | 14th Mar 1933 | Box 179b \ 3 img327 | |
| Compression loading tests on three different types of Kestrel forked connecting rods. | 14th Mar 1933 | Box 179b \ 3 img328 | |
| Continuation of a report comparing stress, distortion, and cracking on different connecting rod designs under load. | 14th Mar 1931 | Box 179b \ 3 img329 | |
| Blueprint sketch comparing three types of Kestrel forked connecting rods that have been tested. | 13th Mar 1933 | Box 179b \ 3 img330 | |
| Sketch showing a forked connecting rod's tendency to splay under load and where cracks occur. | 13th Mar 1933 | Box 179b \ 3 img331 | |
| Valve failures in Goshawk engines during high-output power tests. | 14th Mar 1933 | Box 179b \ 3 img332 | |
| Analysis of engine valve failures, including observations on colour, temperature, and fracture causes. | 14th Jan 1933 | Box 179b \ 3 img333 | |
| Analysis of engine valve failures and proposals for further investigation. | 14th Mar 1933 | Box 179b \ 3 img334 | |
| Proof tests on the Kestrel 25 engine, specifically focusing on the connecting rods. | 15th Mar 1933 | Box 179b \ 3 img335 | |
| Preliminary rating and 100-hour endurance test conditions for Engine No. K.111 fitted with a Goshawk supercharger. | 15th Mar 1933 | Box 179b \ 3 img336 | |
| List of modifications and new parts for various engine components, including references to Goshawk types I and II. | 15th Mar 1933 | Box 179b \ 3 img337 | |
| Summary of engine test results, detailing power curves, spot readings, water displacement, and detonation checks. | 15th May 1933 | Box 179b \ 3 img338 | |
| Engine power conditions and rating tests, comparing performance at different altitudes and RPMs. | 15th May 1933 | Box 179b \ 3 img339 | |
| Graph showing water displacement tests, plotting header tank readings against water outlet temperature at different engine speeds. | 9th Mar 1933 | Box 179b \ 3 img340 | |
| Full throttle power curve rating test for a Goshawk II engine. | 13th Feb 1933 | Box 179b \ 3 img341 | |
| The results of testing Aero Shell lubricating oil in car engines. | 16th Mar 1933 | Box 179b \ 3 img342 | |
| Engine test examining crankpin deposits and overall condition after a prolonged mileage run using Aero Shell oil. | 16th Mar 1933 | Box 179b \ 3 img343 | |
| Oil recommendations and the viability of using Aero Shell as an alternative. | 16th Mar 1933 | Box 179b \ 3 img344 | |
| Tests of an improved oil system for the Kestrel engine, aimed at preventing connecting rod failures. | 20th Mar 1933 | Box 179b \ 3 img345 | |
| Engine oil supply during inversion and the adoption of a relief and non-return valve for existing engines. | 20th Mar 1933 | Box 179b \ 3 img346 | |
| Photograph of a large engine mounted on a test rig in a workshop. | 14th Mar 1933 | Box 179b \ 3 img348 | |
| Diagrammatic sketch of the oiling system used for connecting rod rig tests. | 14th Mar 1933 | Box 179b \ 3 img349 | |
| The Goshawk blower rig tests, analyzing performance and efficiency at various speeds. | 22th Mar 1933 | Box 179b \ 3 img350 | |
| Blower performance tests, detailing efficiency gains, modifications, and issues encountered during testing. | 22th Mar 1933 | Box 179b \ 3 img351 | |
| Performance comparison table for Goshawk, Kestrel, and R. Engines. | 22th Mar 1932 | Box 179b \ 3 img352 | |
| Performance graph plotting delivery pressure, efficiency, and power against air flow for a blower. | 26th Jan 1933 | Box 179b \ 3 img353 | |
| Performance chart for a Goshawk Blower, showing pressure, efficiency, power, and temperature rise curves. | 1st Mar 1933 | Box 179b \ 3 img354 | |
| Performance chart for a standard blower, plotting pressure, efficiency, and horsepower against mixture flow. | 24th Mar 1933 | Box 179b \ 3 img355 | |
| Performance graph for a Goshawk Blower (144X) showing rig test results for pressure, efficiency, temperature rise, and horsepower against air flow. | 4th Mar 1935 | Box 179b \ 3 img356 | |
| Performance graph showing rig test results for the Goshawk Blower 144X. | 14th Mar 1933 | Box 179b \ 3 img357 | |
| Performance graph for a Goshawk Blower showing various rig test results against air flow. | 26th Jan 1938 | Box 179b \ 3 img358 | |
| Performance graph for a Goshawk Blower 144X, plotting various metrics against airflow. | 14th Feb 1933 | Box 179b \ 3 img359 | |
| Graph plotting pressure and efficiency, with performance contour lines. | 14th Feb 1933 | Box 179b \ 3 img360 | |
| Graph of rig test results for the Goshawk Blower 144X, showing pressures and efficiencies against air flow. | 14th Feb 1933 | Box 179b \ 3 img361 | |
| Blueprint graph displaying a series of numbered performance curves. | 6th Apr 1933 | Box 179b \ 3 img362 | |
| Performance graph showing carburetor depression vs. mass flow rate at various drive shaft RPMs. | 6th Apr 1933 | Box 179b \ 3 img363 | |
| The Goshawk blower test with one diffuser passage blocked to ascertain if a magneto drive shaft could be taken through for the Merlin engine. | 25th Mar 1933 | Box 179b \ 3 img364 | |
| Performance graph comparing the boost, pressure, and efficiency of a Goshawk Blower 144X under different configurations. | 23th Nov 1933 | Box 179b \ 3 img365 | |
| The testing of W.W. designs for helical silent second gears on various chassis. | 25th Mar 1933 | Box 179b \ 3 img366 | |
| Repeated piston failures on a Benaport car in France, attributing the cause to faulty castings and dispatching improved replacements. | 26th Mar 1933 | Box 179b \ 3 img367 | |
| Vibration, whirling, and balancing issues with the Peregrine intermediate transmission shaft. | 27th Mar 1933 | Box 179b \ 3 img368 | |
| The performance of a steam-cooled Hart aircraft system during climbs and glides. | 27th Mar 1933 | Box 179b \ 3 img369 | |
| Performance graph showing various engine parameters against flight altitude for a Steam Cooled Hart K.1102 aircraft. | 22th Mar 1933 | Box 179b \ 3 img370 | |
| Graph plotting various temperatures and a tank level against time during a flight test, including glide and level flight phases. | 22th Mar 1933 | Box 179b \ 3 img371 | |
| Accompanying a report on the S.Per.II after a 10,000 miles test in France. | 27th Mar 1933 | Box 179b \ 3 img372 | |
| 10,000-mile road test report on a vehicle, detailing performance, comfort, and mechanical issues. | 25th Mar 1933 | Box 179b \ 3 img373 | |
| Failures and troubles experienced with Engine II PER N°6 during a 10,000-mile test. | 25th Mar 1933 | Box 179b \ 3 img374 | |
| Test report on engine components including front suspension, pistons, connecting rods, and bearings. | 25th Mar 1933 | Box 179b \ 3 img375 | |
| Condition report on various engine components including valves, cylinder head, cylinders, and pumps. | 25th Mar 1933 | Box 179b \ 3 img376 | |
| Report page detailing issues and tests conducted on a petrol pump, carburettor, and oil level indicator. | 26th Feb 1933 | Box 179b \ 3 img377 | |
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