omniomni/omni-engineering huggingface dataset:
Martin-Baker Mk.6. The Martin-Baker Mk.6 is a British rocket-assisted ejection seat designed and built by Martin-Baker. Introduced in the 1960s, the Mk.6 has been installed in combat and training aircraft worldwide.

History
The Mk.6 seat was developed from the earlier Mk.4 design by the addition of a rocket pack to enable zero-zero capability. A variant of the Mk.6 was fitted with a compressed air cylinder crew breathing system to provide underwater ejection capability for the carrier-borne Blackburn Buccaneer aircraft.

Operation sequence
Operating either the seat pan or face blind firing handles initiates aircraft canopy jettison, as the canopy clears an interlock is removed which allows the main gun located at the rear of the seat to fire, the main gun is a telescopic tube with two explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment tubing and communication leads are automatically disconnected, leg restraints also operate.

As the seat moves further up and out of the aircraft the rocket pack is fired by a lanyard attached to the cockpit floor. A steel rod, known as the drogue gun, is fired and extracts two small parachutes to stabilise the seat's descent path. A barostatic mechanism prevents the main parachute from opening above an altitude of 10,000 ft (3,000 m) A time delay mechanism operates the main parachute below this altitude in conjunction with another device to prevent the parachute opening at high speed. The seat then separates from the occupant for a normal parachute descent, a manual separation handle is provided should the automatic system fail.

Applications

The Mk.6 ejection seat has been installed in the following aircraft types:
List from Martin-Baker.

Aermacchi MB-326/Atlas Impala
Atlas Cheetah
Blackburn Buccaneer
Dassault Balzac V
Dassault Mirage III
Dassault Ouragan
Dassault-Breguet Super Étendard
Dornier Do 31
Fiat G.91
FMA IA 58 Pucará
Hawker Siddeley P.1127
Hunting H.126
IAI Dagger
IAI Kfir

Specifications (Mk.6)
Maximum operating height: 50,000 ft (15,240 m)
Minimum operating height: Ground level
Minimum operating speed: Zero
Maximum operating speed: 600 knots indicated airspeed

References

Notes

Bibliography

 * Philpott, Bryan. Eject!! Eject!!. Shepperton, Surrey. Ian Allan Ltd., 1989.

External links

"Seat and Aircraft - 926 Lives Saved" a 1965 advertisement for the Mk. 6HA in Flight

Martin-Baker ejection seats
Martin-Baker Mk.5. The Martin-Baker Mk.5 is a British ejection seat designed and built by Martin-Baker. Introduced in the late 1950s, the Mk.5 has been installed in combat and training aircraft worldwide.

History
The Mk.5 seat was developed alongside the Mk.4 design to meet the needs of the United States Navy. Compared to the Mk.4 seat the structure and harnesses were strengthened to withstand higher crash landing loads, this resulted in a slight increase in weight. Canopy breaking horns were added to allow ejection through an unjettisoned canopy. Two aircraft types operated by the Royal Norwegian Air Force, the RF-84F Thunderflash and the F-86D Sabre, were retro-fitted with Mk.5 seats at the Martin-Baker company's home airfield at Chalgrove.

Operation sequence
Operating either the seat pan or face blind firing handles initiates aircraft canopy jettison, the main gun located at the rear of the seat then fires, the main gun is a telescopic tube with two explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment tubing and communication leads are automatically disconnected, leg restraints also operate.

A steel rod, known as the drogue gun, is fired and extracts two small parachutes to stabilise the seat's descent path. A barostatic mechanism prevents the main parachute from opening above an altitude of 10,000 ft (3,000 m) A time delay mechanism operates the main parachute below this altitude in conjunction with another device to prevent the parachute opening at high speed. The seat then separates from the occupant for a normal parachute descent, a manual separation handle and ripcord is provided should the automatic system fail.

Applications
The Mk.5 ejection seat has been installed in the following aircraft types:
List from Martin-Baker.

Dassault Mirage III
Douglas F4D Skyray
Hawker P.1121 (intended application)
Grumman A-6 Intruder
Grumman F-11 Tiger
Grumman OV-1 Mohawk - technically, this A/C used a MK-5B. The most notable difference was a single handle over-head actuator.
Lockheed T-33 Shooting Star
Lockheed TRV-1 SeaStar
McDonnell F3H Demon
McDonnell Douglas F-4 Phantom (UK variants)
North American FJ-4 Fury
North American F-86D Sabre
North American F-100 Super Sabre
Republic F-84F Thunderstreak/RF-84F Thunderflash
Vought F-8 Crusader

Specifications (Mk.5)
Maximum operating height: 50,000 ft (15,240 m)
Minimum operating height: Ground level
Minimum operating speed: 90 knots indicated airspeed (KIAS)
Maximum operating speed: 600 KIAS

References

Notes

Bibliography

Philpott, Bryan. Eject!! Eject!!. Shepperton, Surrey. Ian Allan Ltd., 1989.

External links

"Seat and Aircraft - 975 Lives Saved" a 1965 Flight advertisement for the Mk.GRU5

Martin-Baker ejection seats
Martin-Baker Mk.4. The Martin-Baker Mk.4 is a British ejection seat designed and built by Martin-Baker. Introduced in the  1950s, the Mk.4 has been installed in combat and training aircraft worldwide.

History
The Mk.4 seat was designed as an improved, lightweight version of earlier Martin-Baker seats for installation in a range of lighter, smaller aircraft types. Improvements included a single combined seat and parachute quick release fastener (QRF) and a snubber mechanism to allow crews to lean forward without loosening the harness. The first successful ejection using a Mk.4 seat took place in March 1957, the aircraft involved being a Fiat G.91.

Operation sequence
Operating either the seat pan or face blind firing handles initiates aircraft canopy jettison, the main gun located at the rear of the seat then fires, the main gun is a telescopic tube with two explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment tubing and communication leads are automatically disconnected, leg restraints also operate.

Once the seat is safely clear of the aircraft a steel rod, known as the drogue gun, is fired which extracts two small drogue parachutes to stabilise the seat's descent path. A barostatic mechanism prevents the main parachute from opening above an altitude of 10,000 ft (3,000 m) allowing the seat and pilot to descend rapidly in free fall so conserving the on-seat oxygen supply until normally-breathable atmospheric air becomes available. A time delay mechanism operates the main parachute below this altitude in conjunction with another device to prevent the parachute opening at high speed to prevent possible parachute canopy damage. The seat then separates from the occupant for a normal parachute descent, a manual separation handle and ripcord is provided should the automatic system fail.

Applications
The Mk.4 ejection seat has been installed in over 35 aircraft types including the following:
List from Martin-Baker.

Aermacchi MB-326
BAC Strikemaster
Breguet Taon
Dassault Étendard IV
Dassault Mirage III
Dassault Mystère
Dassault Ouragan
Dassault/Dornier Alpha Jet
de Havilland Vampire
Dornier Do 29
English Electric Canberra
English Electric Lightning
Fouga CM.170 Magister
HAL Ajeet
HAL HF-24 Marut
HAL Kiran
Hawker Hunter
Helwan HA-300
Nord 1500 Griffon
Nord Gerfaut
SEPECAT Jaguar
SNCASE SE-212 Durandal
SNCASO Trident
Sud Aviation Vautour

Seats on display
A Martin-Baker Mk.4P seat is on display at the Royal Air Force Museum Cosford.

Specifications (Mk.4)
Maximum operating height: 50,000 ft (15,240 m)
Minimum operating height: Ground level
Minimum operating speed: 90 knots indicated airspeed (KIAS)
Maximum operating speed: 600 KIAS

References

Notes

Bibliography

 * Philpott, Bryan. Eject!! Eject!!. Shepperton, Surrey. Ian Allan Ltd., 1989.

External links

"Getting Away With It" a 1954 Flight article

Martin-Baker ejection seats
Martin-Baker Mk.9. The Martin-Baker Mk.9 is a British rocket-assisted ejection seat designed and built by Martin-Baker. Introduced in the late-1960s, the zero-zero capable Mk.9 has been installed in several European combat aircraft types and was also used in experimental aircraft.

History
The Mk.9 seat is considered by the manufacturer as the culmination of their earlier designs. It features only one firing handle (the face blind handle being deleted) and a new explosive gas system to operate canopy jettison, harness retraction and main gun firing, dispensing with previous mechanical systems of rods or cables.

Operation sequence
Operating the seat pan firing handle initiates aircraft canopy jettison, as the canopy clears an interlock is removed which allows the main gun located at the rear of the seat to fire, the main gun is a telescopic tube with two explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment tubing and communication leads are automatically disconnected, leg restraints also operate.

As the seat moves further up and out of the aircraft the rocket pack is fired by a lanyard attached to the cockpit floor. A steel rod, known as the drogue gun, is fired and extracts two small parachutes to stabilise the seat's descent path. A barostatic mechanism prevents the main parachute from opening above an altitude of 16,000 ft (5,000 m) A time delay mechanism operates the main parachute below this altitude in conjunction with another device to prevent the parachute opening at high speed. The seat then separates from the occupant for a normal parachute descent, a manual separation handle and ripcord is provided should the automatic system fail.

Applications
The Mk.9 ejection seat has been installed in the following aircraft types:
Dornier Do 31
Hawker Siddeley Harrier
Nord 500
SEPECAT Jaguar
VFW VAK 191B

Seats on display
A Martin-Baker Mk.9A is on static display at the Royal Air Force Museum Cosford.

Specifications (Mk.9)
Maximum operating height: 50,000 ft (15,240 m)
Minimum operating height: Ground level
Minimum operating speed: Zero
Maximum operating speed: 600 knots indicated airspeed

References

Notes

Bibliography

Philpott, Bryan. Eject!! Eject!!. Shepperton, Surrey. Ian Allan Ltd., 1989. 

Martin-Baker ejection seats
Pump drill. A pump drill is a simple hand-powered device used to impart a rapid rotating motion to a rod (the spindle or drill shaft). It can be used for fire making or as a drill to make holes in various materials. It consists of: the drill shaft, a narrow board with a hole through the center, a weight (usually a heavy disc) acting as a flywheel, and a length of cord. The weight is attached to the shaft, near the bottom end, and the hole board is slipped over the top. The cord is run through a hole or slot near the top of the shaft and attached to both ends of the hole board. The length of the cord is such that, at its lowest position, the board lies just above the weight.

The end of the shaft usually has a slot or hole that can hold a hard bit that does the actual drilling, either by abrasion or by cutting. For wood, the bit may be an auger bit or a simple triangular blade that can cut while rotating in either direction.

To use, the shaft is first turned by hand so that the cord wraps around the top part, as much as possible, and the board is as the highest position. A smooth downward pressure is exerted on the board, causing the shaft to rapidly spin. Once the bottom is reached, the pressure is relieved. The weight then keeps the shaft spinning so that the cord wind again around it, in the opposite sense, pulling the board up to the starting position, much like a yo-yo or button whirligig. The process then can be repeated.

See also
 Bow drill, strap drill
 Hand drill

References

Fire making
Mechanical hand tools
William King (engineer). William Falconer King FRSE FRMetS (17 April 1851  – 6 October 1929 in Hunter's Quay, Argyll) was a Scottish engineer. He was a pioneer in the laying of submarine telegraphy cables.

A student at the University of Glasgow and then employee of Sir William Thomson, King was responsible for laying the first transatlantic telegraph cable to Brazil, while serving as chief engineer (1873–84) of the Western and Brazilian Telegraph Company. For his services in Brazil Emperor Dom Pedro II awarded him a Knight of the Order of the Rose.

He was elected a Fellow of the Royal Society of Edinburgh in 1880. His proposers were William Thomson, Lord Kelvin, Peter Guthrie Tait, William Durham, and James Thomson Bottomley.

He returned to Scotland in 1884, living at Lonend on Russell Place in Trinity, Edinburgh. In Edinburgh he created the engineering firm of King, Brown & Co with Andrew Betts Brown based at the Rosebank Works in Leith and in 1894 King & Co, electrical engineers who built the Leith Electric Works at 1 Prince Regent Street and created the Leith Electricity Generating Station on Junction Place and installed one of Britain's first systems of electric street lights (1895) and Scotland's first electric tram system (also in Leith, 1910).

In the First World War his firm won the very lucrative contract from the Admiralty for the installation and repair of all electrical equipment in the Naval Dockyards at both Rosyth and Leith.

In later life he devoted much effort to the refinement of clocks and created a very fine chronometer which was installed in the Royal Observatory, Edinburgh on the Braid Hills.

He retired to Hunter's Quay in Argyllshire, where he had long kept a yacht and died there on 6 October 1929.

References

1851 births
1929 deaths
Alumni of the University of Glasgow
Fellows of the Royal Society of Edinburgh
Scottish meteorologists
Scottish clockmakers
British telecommunications engineers
20th-century Scottish engineers
19th-century Scottish businesspeople
20th-century Scottish businesspeople
Martin-Baker Mk.8. Martin-Baker Mk.8 is the designation given to two distinct British ejection seat types designed and built by Martin-Baker. The original use applies to a seat developed for the cancelled BAC TSR-2 strike aircraft project of the 1960s, re-use of the designation applies to a lightweight version of the Martin-Baker Mk.10 seat for the Short Tucano and other similar military training aircraft.

History

Mk.8 for TSR-2
The original Mk.8 seat was developed in the 1960s for the TSR-2, produced in small quantities it provided valuable experience that was carried forward to the Mk.9 and Mk.10 designs.

Mk.8 (modern use)
The current ejection seat design is effectively a Mk.10 seat with the rocket pack removed. It is used in the FMA IA 63 Pampa and Short Tucano training aircraft.

Operation sequence (Current Mk.8)
Operating the seat pan firing handle initiates firing of the canopy miniature detonating cord which shatters the canopy, the main gun located at the rear of the seat then fires, the main gun is a telescopic tube with two explosive charges that fire in sequence. As the seat moves up its guide rails an emergency oxygen supply is activated and personal equipment tubing and communication leads are automatically disconnected, leg and arm restraints also operate.

As the seat moves further up and out of the aircraft the rocket pack is fired by a lanyard attached to the cockpit floor. A steel rod, known as the drogue gun, is fired and extracts two small parachutes to stabilise the seat's descent path. A barostatic mechanism prevents the main parachute from opening above an altitude of 8,000 ft (2,400 m) A time delay mechanism operates the main parachute below this altitude in conjunction with another device to prevent the parachute opening at high speed. The seat then separates from the occupant for a normal parachute descent, a manual separation handle is provided should the automatic system fail.

Seats on display
An original Martin-Baker Mk.8 is on static display at the Royal Air Force Museum Cosford in proximity to the preserved TSR-2.

Specifications (Mk.AU8LD)
Maximum operating height: 50,000 ft (15,240 m)
Minimum operating height: Ground level
Minimum operating speed: 70 knots indicated airspeed (KIAS)
Maximum operating speed: 600 KIAS

References

Notes

Bibliography

Philpott, Bryan. Eject!! Eject!!. Shepperton, Surrey. Ian Allan Ltd., 1989. 

Martin-Baker ejection seats
V-STOL Solution. The V-STOL Solution is an American ultralight aircraft that was designed by Dick Turner in 1998 and produced by V-STOL Aircraft. The aircraft was supplied as a kit for amateur construction.

Design and development
The design goal of the Solution was to produce a legal US FAR 103 Ultralight Vehicles regulations compliant single seat ultralight that could be easily converted to a two-seater with the addition of a second seat and a larger engine. FAR Part 103 specifies a maximum empty weight of  and the Solution has a standard empty weight of . It features a cable-braced high-wing, a single-seat, open cockpit, conventional landing gear and a single engine in pusher configuration.

The aircraft is made from bolted-together aluminium tubing, with the flying surfaces covered in Dacron sailcloth. Its  span wing has a wing area of , which is large enough to support a second person. The second seat would be installed behind the first, in tandem, and could be optionally equipped with dual controls.

The pilot is accommodated on an open seat and has conventional three-axis controls in the form of a centre stick and rudder pedals. The standard engine provided for single seat flying was the single cylinder two-stroke Rotax 277 of , while larger engines could be installed for two-seat operations.

V-STOL Aircraft had the design on the market for only a short period before the company went out of business. Assembly time from the kit is estimated at 50 hours.

Specifications (Solution single-seat)

References

Solution
1990s United States ultralight aircraft
Homebuilt aircraft
Single-engined pusher aircraft
Paul D. Foote. Paul Darwin Foote (March 27, 1888 – August 2, 1971) was a director of research and executive vice president of the Gulf Research and Development company, as well as the United States Assistant Secretary of Defense for Research and Engineering during the Eisenhower administration. He also served as a member of the industrial advisory group of the Atomic Energy Commission. He was an elected member of both the American Philosophical Society and the United States National Academy of Sciences.

Education 
Foote graduated in 1909 from Adelbert College, now Case Western Reserve University, with degrees in mathematics and physics. He received an MS degree from the University of Nebraska (now University of Nebraska–Lincoln) in 1912. Foote received a PhD in physics in 1918 from the University of Minnesota.

Notable works 
Statistics on number of libraries is according to
 The origin of spectra: held in 277 libraries worldwide
 Pyrometric practice: held in 59 libraries worldwide
 A new microphotometer for photographic densities by William Frederick Meggers: held in 17 libraries worldwide

References

Further reading 
Paul Darwin Foote: March 27, 1888 – August 2, 1971

External links

National Academy of Sciences Biographical Memoir

1888 births
1971 deaths
Case Western Reserve University alumni
United States Department of Defense officials
University of Minnesota College of Science and Engineering alumni
University of Nebraska–Lincoln alumni
Members of the United States National Academy of Sciences
20th-century American inventors
Presidents of the American Physical Society
Members of the American Philosophical Society
SAP Mobile Platform. SAP Mobile Platform (formerly Sybase Unwired Platform) is a mobile enterprise application platform designed to simplify the task of creating applications that connect business data to mobile devices for workflow management and back-office integration. SAP Mobile Platform provides a layer of middleware between heterogeneous back-end data sources, such as relational databases, enterprise applications and files, and the mobile devices that need to read and write back-end data.

Application developers write the business logic of a mobile application using the development tools in SAP Mobile Platform. The product automatically does the translation required to create customized versions of the new application for a wide variety of mobile devices and operating systems. The intent is to make it easier and faster to create complex applications that use multiple data sources and will work on many different mobile devices.

History
Sybase first released Sybase Unwired Platform in 2008. Written in C and Java.  Version 2.3 of the product was the first to be released as SAP Mobile Platform.

 Version 3.0: Released May 2014
 Version 2.3: Released end of 2013 as SAP Mobile Platform
 Version 2.2: Released in March 2013
 Version 2.1.3: Released in May 2012
 Version 2.1.2: Released February 2012
 Version 2.1.1: Released November 2011
 Version 2.1: Released September 2011
 Version 2.0: Released 2011
 Version 1.5.2: Released 2010
 Version 1.2: Released 2009
 Version 1.0: Released 2008

Features
 Appcelerator
 Cordova support
 Mobile Analytics Kit (MAKit)
 Mobile SDK
 Hybrid Web Container
 4GL tooling environment
Eclipse plug-in
 Integrated mobile device management and application enablement
 Support for multiple device types, including Android, iOS, BlackBerry, Windows Mobile, and Windows laptops/tablets.
 Integrates with SAP, Remedy Corp, and other applications that leverage databases or service oriented architecture.
 Unwired Platform Runtime
 Secure access between mobile devices and a network

Usage
To use Sybase Unwired Platform, a software developer drags and drops table names from a database list into a diagram, which creates what the product calls a "mobile business object." The Sybase Unwired Platform server uses that object to determine how data will be shared between the server and mobile clients, and then performs "code generation" to create customized versions for individual mobile platforms.

Competitors
Tokn: builds integrated enterprise apps for any system such as SAP, Oracle, IFS, SQL with all apps run native on Android, Microsoft and IOS.
Syclo: Following SAP's acquisition, Syclo's Agentry solution became part of SAP Mobile Platform in its 2.3 release.
KonyOne Platform
Verivo
Convertigo
Nitro Mobile Solutions
Appcelerator

See also
Mobile application management
Mobile device
Mobile device management
Mobile enterprise application platform
Cross-platform software
Unwired enterprise
Sybase

References

Sujoy Sameer Das, Bosch

Mobile business software
Norman Fleck. Norman Andrew Fleck (born 11 May 1958) is a British scientist and engineer, Professor, and Director of the Cambridge Centre for Micromechanics.
He is a Fellow of Pembroke College, Cambridge, and of the Royal Academy of Engineering.

He earned a B.A. (1979) and Ph.D. (1983) from the University of Cambridge.

Professor Fleck was President of IUTAM 2020-2024 https://iutam.org/

In December 2020, Fleck reported on the condition of London's Hammersmith Bridge suggesting that its closure may have been overly cautious, and that, after minimal work, the bridge could be reopened to cyclists and pedestrians.

References

External links
Professor Norman Fleck: Official website
http://www-g.eng.cam.ac.uk/125/now/naf.html

English mechanical engineers
Fellows of Pembroke College, Cambridge
Fellows of the Royal Society
Fellows of the Royal Academy of Engineering
1958 births
Engineering professors at the University of Cambridge
Living people