Technologies Against Late Detected Earth Impacting Bodies

5 October 2017

No.4 Hamilton Place, London


18:00 - 19:00

The paper will look at advances in military technology over the last 3 to 4 decades that could provide inputs to a 'fast reaction' capability against Earth impacting bodies.

It will examine the reasons why a 'fast reaction' system is thought to be necessary and examine some of the consequences of 'last minute' engagement.

It will explore the concept of a multi-mode deflection system able to counter a wide range of impacting body types and sizes.

As is usual with papers of this type, it results in more questions than answers.


Speaker Details

John R Pearce, Corresponding Member of RAeS WS&T Committee, Royal Aeronautical Society

John Pearce is a retired weapons technologist. He started his career with an apprenticeship at Hawker Aircraft followed by two years in the Hawker design office working on Kestrel, Harrier and Hawk.

From 1973 he worked at EMI (later Thorn EMI) working on fuzing systems, safety & arming systems and weapons systems. Work included the development of an impact fuze for Chevaline, contributions to SG 357, the Multi Function Bomb Fuze and an impact signature sensing fuze for WE177. Feasibility work on MLRS TGW was followed by a successful multi-national bid for phase III for which he was technical manager for the UK programme.

Following work on missile launchers at Frazer Nash, he has spent the last 16 years of his career at DRA/DERA Farnborough (now QinetiQ). Major tasks were technical support to the Brimstone IPT and secondment to AWE for work on successor.

He is a Chartered Engineer, a Fellow of the Institution of Mechanical Engineers and a member of the Royal Aeronautical Society.


No.4 Hamilton Place, London

Royal Aeronautical Society Headquarters

No.4 Hamilton Place