R-100

His Majesty’s Airship R100 was a privately designed and built British rigid airship made as part of a two-ship competition to develop a commercial airship service for use on British Empire routes as part of the Imperial Airship Scheme. The other airship, the R101, was built by the British Air Ministry, but both airships were funded by the Government.

R100 was built by the Airship Guarantee Company, a specially created subsidiary of the armaments firm Vickers-Armstrongs, led by Commander Dennis Burney. The design team was headed by Barnes Wallis, later famous for his invention of the bouncing bomb. The design team also included Nevil Shute Norway as the senior stress engineer (see Slide Rule).[Note 1]

R100 first flew in December 1929. It made a series of trial flights and a successful return crossing of the Atlantic in July–August 1930, but following the crash of R101 in October 1930 the Imperial Airship Scheme was terminated and R100 was broken up for scrap.

Coming Soon

Coco Chanel

William Stephenson

Vera Atkins

British Empire Games

Norman Brooks Two silver

Bill Trippett Gold

John Besford Bronz

Stanley Bell Silver

Regionald Flint Bronze

Freddie Milton Silver

Arthur Watts Silver

Whiteside Silver

Joyce Cooper Four gold

Phyllis Harding Bronze and Gold

Cecelia Wolstenholme Gold

Margery Hinton Silver

Doreen Cooper Gold

Olive Jones Gold

Norman Brooks Two silver

Slide rule

A mechanical analog calculator used primarily for multiplication, division, exponents, roots, logarithms, and trigonometry It consists of slidable logarithmic scales that allow users to perform calculations by aligning numbers and reading results through physical movement.

Lloyd’s Register

is a maritime classification society that establishes and enforces technical standards for ship design, construction, and maintenance. For shipbuilding, its Rules and Regulations serve as the benchmark for ensuring structural integrity, safety, and regulatory compliance.

Cheshire

Builder: Fairfield Shipyard, Glasgow (launched 1927) 10,560 GRT, 15.5 knots, twin diesel engines. She belonged to Bibby Line, which ran passenger and cargo services between Rangoon in Burma (now Yangon in Myanmar) and various ports in Great Britain, via the Suez Canal and Gibraltar.[1] The Admiralty requisitioned her in 1939 and had her converted into an armed merchant cruiser (AMC). She was converted into a troopship in 1943, and returned to civilian service in 1948.

Fairfield shipyards

The Fairfield Shipbuilding and Engineering Company in Govan, Glasgow, was a major player in global shipbuilding during the early 20th century. By 1930, the yard faced significant challenges but remained active in naval and commercial projects.

Princess Elizabeth 

The Princess Elizabeth exemplified Fairfield’s niche in mid-sized vessels, contrasting with John Brown’s record-breaking liners. While no service specifics are detailed in the results, it likely operated Canadian coastal routes or short international voyages.

Graduate Naval architecture Dorothy Rowntree

Rowntree’s 1926 graduation marked a milestone, as naval architecture remained male-dominated. 

PART II: ALPHABETICAL INDEX

A

Aft – The rear section of an airship or vessel. (Chapter 17) Cross-reference: Stern, Nose

Altimeter – An instrument that measures altitude or height above a fixed reference point, typically sea level, essential for airship navigation. (Chapter 17) Cross-reference: Inclinometer

B

Barometric pressure – The pressure exerted by the atmosphere at a given location, measured with a barometer. Sudden changes in barometric pressure often indicate approaching weather systems, critical for airship navigation. (Chapter 12) Cross-reference: Inclinometer

Blimey (exclamation) – An expression of surprise, shock, or amazement. (Chapter 4) Cross-reference: Smashin’

Bonnie – Beautiful, attractive, or handsome; can refer to people, places, or things. (Chapter 6) Cross-reference: Scottish dialect terms

Breastplate of Tutankhamun – A ceremonial piece of ancient Egyptian royal regalia from King Tutankhamun’s tomb, rumored in the story to contain mathematical formulas and designs thousands of years ahead of modern science. (Chapter 5) Cross-reference: Mystical and occult terms

C

Cairngorms – A mountain range in the eastern Highlands of Scotland, featuring high granite summits and known for their ancient Caledonian pine forests. In the story, they serve as both a physical retreat and symbolic landscape of transformation for Mackenzie. (Chapter 5) Cross-reference: Scottish terminology

Cardington Airfield – A Royal Air Force station in Bedfordshire, England, home to the massive airship construction sheds where the R-100 was built and maintained. The site contained two enormous hangars specifically designed for airship construction. (Chapter 2) Cross-reference: R-100 project

Chief Coxswain – The senior non-commissioned officer responsible for steering the airship and executing the navigator’s and captain’s directional commands. (Chapter 3) Cross-reference: First Officer, Control car

Clach Mhic Ghòrdain (pronounced: /klax vɪk ɣɔːrdɪn/) – “The Gordon Stone,” a granite outcrop in the story that supposedly brings clarity to troubled minds. (Chapter 5) Cross-reference: Cairngorms

Conical tail section – The tapering rear portion of the airship’s structure that houses control surfaces and contributes to aerodynamic stability. (Chapter 3) Cross-reference: Outer cover integrity, R-100 project

Control car – The command center of an airship, typically suspended below the main envelope, housing the flight controls, navigation instruments, and helm positions for the officers and crew. (Chapter 3) Cross-reference: Flying stations, Watch-keeping stations

Crutching of gas bags – A maintenance procedure performed during ascent where support structures (crutches) are properly positioned to support the gas bags as they expand with altitude, preventing uneven strain. (Chapter 11) Cross-reference: Gasbags

D

Dead drop – A method of covert communication where an agent leaves material at a predetermined location for another operative to retrieve, minimizing direct contact. (Chapter 17) Cross-reference: Espionage terminology

Decryption – The process of converting encrypted information back into its original, readable form, often requiring specialized knowledge or equipment. (Chapter 19) Cross-reference: Microfilm, SIS

E

Engine distribution panel – A control system that manages the electrical power supply to various airship systems, including engines, lights, and communications equipment. (Chapter 12) Cross-reference: Technical terminology

Engine Order Telegraph – A communications device used to transmit engine commands from the control car to the engine rooms, ensuring synchronized operations during critical maneuvers. (Chapter 3) Cross-reference: Speaking tube

F

First Officer – The second-in-command of an airship, who assists the captain in navigation and operation of the vessel and assumes command in the captain’s absence. (Chapter 12) Cross-reference: Chief Coxswain

Flying stations – Designated positions for crew members during critical flight operations, such as takeoff, landing, or emergency situations. (Chapter 4) Cross-reference: Watch-keeping stations

G

Gasbags – Large containment cells within a rigid airship that hold the lifting gas (usually hydrogen or helium). Multiple gas bags provide compartmentalization for safety and buoyancy control. (Chapter 8) Cross-reference: Crutching of gas bags

Geodetic framework design – An innovative structural approach developed by Barnes Wallis for airship construction, using a pattern of load-bearing intersecting members to create a lightweight but strong airframe. (Chapter 2) Cross-reference: Spider-joint design

Guid Folk: In Scottish Highland tradition, the guid folk (good folk) were supernatural beings believed to inhabit the underground realms, hills, and wild places of Scotland. This respectful name was deliberately used instead of “fairies” as the creatures were thought to be listening and would take offense at disrespectful terms. They were considered powerful, temperamental entities capable of bringing both fortune and misfortune—curdling milk, sickening cattle, causing storms, or even stealing away humans who offended them.

Haar (pronounced: /hɑːr/) – A cold sea fog specific to the east coast of Scotland, especially prevalent between April and September. Forms when warm, moist air passes over the North Sea, causing moisture to condense into fog that is then blown inland. (Chapter 1) Cross-reference: Scottish terminology

I

Inclinometer – A navigation instrument used to measure the angle of tilt, slope, elevation, or depression of an object with respect to gravity, essential for monitoring an airship’s attitude. (Chapter 3) Cross-reference: Altimeter, Barometric pressure

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