BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Newcomen.com - ECPv6.16.2//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Newcomen.com
X-ORIGINAL-URL:https://www.newcomen.com
X-WR-CALDESC:Events for Newcomen.com
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:Europe/London
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
TZNAME:BST
DTSTART:20240331T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
TZNAME:GMT
DTSTART:20241027T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
TZNAME:BST
DTSTART:20250330T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
TZNAME:GMT
DTSTART:20251026T010000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:+0000
TZOFFSETTO:+0100
TZNAME:BST
DTSTART:20260329T010000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:+0100
TZOFFSETTO:+0000
TZNAME:GMT
DTSTART:20261025T010000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=Europe/London:20250923T183000
DTEND;TZID=Europe/London:20250923T200000
DTSTAMP:20260525T231714
CREATED:20250918T093606Z
LAST-MODIFIED:20250920T112819Z
UID:16546-1758652200-1758657600@www.newcomen.com
SUMMARY:'The Polaris Missile System: Development and Operations' by John Boyes
DESCRIPTION:Image source: US National Archives NAID (public domain) \nAn in-person event only. No need to sign up\, just come along – all are welcome. \nThe atom bombs dropped on Japan heralded new military possibilities as the post-war world became the Cold War. Seeing with great foresight the potential for developing nuclear power for the US Navy\, Capt. Hyman Rickover pushed forward a research programme which culminated with the launch of the USS Nautilus\, the world’s first nuclear powered submarine. \nStill dependant on complex liquid fuels the US Navy\, already partnering the Army in developing a ballistic missile for both services\, withdrew from the alliance when solid fuels of sufficient energy became a practical proposition\, setting up its own project under the leadership of RAdm. William Raborn. Thus was born the Polaris weapon system with the first missile-armed\, nuclear powered submarine leaving on patrol in 1958. \nForty other SSBNs were to follow and when Britain’s Blue Streak and Skybolt plans were cancelled\, Harold Macmillan and President Kennedy met in the Bahamas sealing a deal which saw Polaris also being supplied to the Royal Navy. \nAbout the Speaker\nJohn Boyes was born in Edinburgh in 1947. Educated at Rugby School\, he qualified as a chartered accountant in 1973 and thereafter pursued a career in the motor industry until his retirement in 2005. Always interested in the military\, he served for seventeen years in the Territorial Army’s Media Operations Group. \nJohn’s particular interest is the history of missiles and he published his first book on the topic\, Project Emily: Thor IRBM and the RAF\, in 2008. He is the former treasurer of the RAF Historical Society and of the Bomber Command Association\, whose Memorial to the 55\,573 RAF personnel killed in the Second World War was unveiled in 2012.
URL:https://www.newcomen.com/activity/the-polaris-missile-system-development-and-operations-by-john-boyes/
LOCATION:MANCHESTER International Anthony Burgess Foundation\, Engine House\, Chorlton Mill\, 3 Cambridge Street\,\, Manchester\, M1 5BY
CATEGORIES:UK - North Western Branch
ATTACH;FMTTYPE=image/jpeg:https://www.newcomen.com/wp-content/uploads/2025/09/25-09-23_ThePolarisMissileSystemPolaris_missile_launch_from_HMS_Revenge_S27_1983_1920x1280.jpg
ORGANIZER;CN="Newcomen - North Western Branch":MAILTO:catherine.casson@manchester.ac.uk
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=Europe/London:20250929T183000
DTEND;TZID=Europe/London:20250929T200000
DTSTAMP:20260525T231714
CREATED:20250918T101145Z
LAST-MODIFIED:20250919T150251Z
UID:16551-1759170600-1759176000@www.newcomen.com
SUMMARY:'The Development of the HF Transceiver' by Bob Harris
DESCRIPTION:Image source: KNL \nJoining us IN PERSON – just turn up\, there’s no need to register\nClick on this zoom link to join on-line \nThe period from about 1970 to 1985 saw significant changes in the design and construction of high-frequency (HF) radio transceivers. Whilst this talk will focus on amateur radio transceivers\, the developments and changes also applied to commercial transceivers for the maritime and land mobile markets. \nBob Harris will cover the changes and set them in the context of the wider development of transmitters and receivers from Marconi onwards. The development of the technology\, the circuit design and the construction practices will all be examined and supported by relevant theory. \nThe reasons for the rise to dominance of the Japanese brands such as Icom\, Kenwood and Vertex will be discussed. \nAbout the Speaker\nBob Harris has held an amateur radio licence since 1971 and has gradually built up a collection of old radio transceivers. These are from the mid-1970s until the mid-1980s\, this period being one of significant technical change and innovation. \nProfessionally\, Bob has an MSc in Modern Electronics and a BEng in Electronic Engineering. After initially working in the steel industry\, he moved into teaching in further education. Latterly\, he taught electronics and telecommunications at Sheffield Hallam University for some 30 years until his retirement
URL:https://www.newcomen.com/activity/the-development-of-the-hf-transceiver-by-bob-harris/
LOCATION:SHEFFIELD Kelham Island Museum\, Alma Street\, Sheffield\, South Yorkshire\, S3 8RG
CATEGORIES:Shed Talks (Newcomen Online),UK - South Yorkshire Branch
ATTACH;FMTTYPE=image/jpeg:https://www.newcomen.com/wp-content/uploads/2025/09/25-09-29_TheDevelopmentoftheHFTransceiver_1920x1280.jpg
ORGANIZER;CN="Newcomen - South Yorkshire Branch":MAILTO:meetings.syorks@newcomen.com
END:VEVENT
END:VCALENDAR