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gptkbp:instance_of
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gptkb:archaeological_site
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gptkbp:bfsLayer
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7
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gptkbp:bfsParent
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gptkb:Martin-Baker_Mk._21
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gptkbp:certification
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military aviation standards
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gptkbp:collaborations
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with various air forces
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gptkbp:community
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part of aviation community discussions
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gptkbp:deployment
|
pyrotechnic charges
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gptkbp:depth
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0.6 m
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gptkbp:design
|
based on earlier models
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gptkbp:developer
|
ongoing improvements
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gptkbp:elevation
|
up to 50,000 feet
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|
gptkbp:exhibitions
|
featured in airshows
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gptkbp:features
|
rocket-assisted ejection
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gptkbp:feedback
|
generally positive
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gptkbp:first_flight
|
gptkb:1955
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gptkbp:game_components
|
includes parachute system
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gptkbp:height
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1.2 m
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gptkbp:historical_significance
|
important in aviation safety history
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|
https://www.w3.org/2000/01/rdf-schema#label
|
Martin-Baker Mk. 21 C
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gptkbp:influence
|
inspired other manufacturers
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gptkbp:introduced
|
1950s
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gptkbp:invention
|
several related to ejection technology
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gptkbp:is_tested_for
|
extensively tested before use
|
|
gptkbp:is_used_by
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gptkb:military_base
|
|
gptkbp:legacy
|
influenced future ejection seat designs
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gptkbp:maintenance
|
requires regular checks
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gptkbp:manufacturer
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gptkb:Martin-Baker_Aircraft_Company
|
|
gptkbp:max_takeoff_weight
|
up to 600 knots
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|
gptkbp:modifications
|
customizable for different aircraft
|
|
gptkbp:notable_battle
|
used in various conflicts
|
|
gptkbp:notable_users
|
gptkb:British_military_aircraft
|
|
gptkbp:operational_area
|
various aircraft types
|
|
gptkbp:price
|
varies by contract
|
|
gptkbp:produced_by
|
mass-produced
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|
gptkbp:project
|
expected advancements in technology
|
|
gptkbp:publishes
|
documented in aviation literature
|
|
gptkbp:recognizes
|
awarded for innovation
|
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gptkbp:related_model
|
gptkb:Mk._20
|
|
gptkbp:reliability
|
proven over decades
|
|
gptkbp:research
|
ongoing in ejection technology
|
|
gptkbp:safety_record
|
high
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|
gptkbp:status
|
still in use today
|
|
gptkbp:successor
|
gptkb:Martin-Baker_Mk._22
|
|
gptkbp:training
|
used in pilot training programs
|
|
gptkbp:type
|
catapult seat
|
|
gptkbp:upgrades
|
available for older models
|
|
gptkbp:weight
|
approximately 100 kg
|
|
gptkbp:width
|
0.5 m
|