For more than a century Rolls-Royce has cultivated a reputation for meticulous engineering, craftsmanship and attention to detail. By the 1980s the company often illustrated this reputation through a series of fascinating facts and anecdotes about how their cars were built, tested and refined.
These observations highlight the philosophy behind Rolls-Royce engineering — a commitment to durability, precision manufacturing and luxury standards rarely matched in the automotive industry.
Extraordinary Engineering Standards
Rolls-Royce vehicles are engineered to extremely tight tolerances and subjected to extensive testing procedures. One example often cited is the durability testing of seat cushions. To simulate years of use, Rolls-Royce engineers use a device nicknamed “Squirming Irma,” a 200-pound simulated passenger which repeatedly moves on the seat. During testing the device can squirm on a seat up to one million times to ensure the materials and structure maintain their comfort and durability.
Similarly, engineers sometimes use a stethoscope to listen to the running engine in order to detect even the smallest irregularities in operation.
The cooling capacity of the air-conditioning system in a Silver Spirit is also remarkable. It is said to equal the cooling output of approximately thirty domestic refrigerators, ensuring a stable interior temperature even in extreme conditions.
Precision Craftsmanship
Rolls-Royce craftsmanship extends far beyond mechanical engineering. Many of the components are hand-built and individually finished.
For example, upholstering the interior of a Silver Spirit requires twelve carefully selected hides. These hides are sourced from northern European cattle where colder climates and minimal insect damage produce exceptionally smooth leather suitable for luxury interiors.
Another example of Rolls-Royce craftsmanship is the famous Spirit of Ecstasy mascot. Each mascot is individually sculpted and cast using a traditional lost-wax process, meaning that no two mascots are exactly identical.
The finishing of certain decorative components can involve unusual techniques. The final polishing of the Spirit of Ecstasy ornament, for instance, has historically involved powdered cherry stones to achieve the correct surface finish.
Hand-Built Construction
Rolls-Royce automobiles have long been associated with hand-built construction methods. Skilled craftsmen perform much of the assembly work, and each component is inspected to meet the company’s stringent quality standards.
Even small details reflect this approach. Horn button contacts in a Silver Spirit are made from silver and gold, chosen for their reliability and conductivity.
The radiators themselves require careful hand finishing. It takes approximately one full day for a craftsman to build a Rolls-Royce radiator, followed by several hours of polishing to achieve the distinctive finish.
Such attention to detail helps explain why Rolls-Royce vehicles have earned a reputation for longevity and durability unmatched by most production automobiles.
While this guide has technical information about Rolls Royce Motor cars, Car Manuals Direct have a great selection of Rolls Royce Workshop Manuals that includes all the original specifications, adjustment, torque settings and repair procedures that were used by Rolls Royce technicians.
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Source
Information compiled from period factory service literature.
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