---
title: Ivan Evernden · HICONIUM
description: Ivan Evernden in the HICONIUM register — 3 files carrying their credit.
canonical_url: https://hiconium.dev/people/ivan-evernden
image: https://hiconium.dev/og/people/ivan-evernden.png
---

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> Path: [Home](https://hiconium.dev/) › [People](https://hiconium.dev/people) › Ivan Evernden
> On this page: [Weight and drag as a system](#weight-and-drag-as-a-system) · [Engineering-led form](#engineering-led-form) · [3 files carry this name](#3-files-carry-this-name)

People

# Ivan Evernden

Rolls-Royce project engineer and head of the Styling Department

| Label | Value |
| --- | --- |
| Nationality | British |

The record

Rolls-Royce engineer credited in the register for the Phantom II Continental, Bentley R-Type Continental and Silver Cloud.

Evernden joined Rolls-Royce in 1916 and later became the company's chief projects engineer. The register credits him as a designer and development engineer on the Phantom II, where he worked with Henry Royce on the experimental 26EX that led to the Continental specification.

At Crewe, Evernden worked with John Blatchley on the Bentley R-Type Continental. Their lighter, aerodynamically developed prototype, OLG 490, averaged 118.75 mph at Montlhéry in 1951; the register also credits Evernden as head of the Styling Department on the Rolls-Royce Silver Cloud.

### Weight and drag as a system

For the R-Type Continental, Evernden treated aerodynamic drag and mass together: he calculated a maximum weight of 34 cwt so the available tyres could sustain high-speed touring.

### Engineering-led form

He and Blatchley used a quarter-scale model in Rolls-Royce's Hucknall wind tunnel before turning the R-Type chassis into a long-distance grand tourer.

The houses

[![Rolls-Royce](https://hiconium.dev/images/marques/full/rollsroyce.svg)](https://hiconium.dev/manufacturers/rollsroyce)

[![Bentley](https://hiconium.dev/images/marques/full/bentley.svg)](https://hiconium.dev/manufacturers/bentley)

Credited through Rolls-Royce, Bentley Motors.

In the register

## 3 files carry this name

- [Rolls-Royce Phantom II Designer and development engineer · Rolls-Royce 1929–1936 €550k 1929–1936 €550k Rating 88.0](https://hiconium.dev/vehicles/rollsroyce/phantom-ii)
- [Bentley R-Type Continental Chief projects engineer · Bentley Motors 1952–1955 €1.8M 1952–1955 €1.8M Rating 95.0](https://hiconium.dev/vehicles/bentley/r-type-continental)
- [Rolls-Royce Silver Cloud Styling Department head · Rolls-Royce 1955–1966 €220k 1955–1966 €220k Rating 85.0](https://hiconium.dev/vehicles/rollsroyce/silver-cloud)

The files above are the register's own record of this name. [The people index](https://hiconium.dev/people) holds everyone the register credits.

Sources

- [bentleymotors.com](https://www.bentleymotors.com/en/about-bentley/history-and-heritage/bentley-story.html)
- [classicandsportscar.com](https://www.classicandsportscar.com/de-ch/features/im-inneren-des-prachtigen-bentley-r-type-continental)
- [classicrollsroyce-bentley.com](https://www.classicrollsroyce-bentley.com/home/component/content/article/1931-rolls-royce-phantom-ii-continental?Itemid=101&catid=413)
- [cambridge.org](https://www.cambridge.org/core/journals/aeronautical-journal/issue/EF35F496628134F0145B26743D046089)