|
gptkbp:instance_of
|
gptkb:archaeological_site
|
|
gptkbp:controls
|
automatic deployment
|
|
gptkbp:crew
|
one person
|
|
gptkbp:cultural_impact
|
featured in documentaries
|
|
gptkbp:deployment
|
rocket-assisted
|
|
gptkbp:design
|
engineers at Martin-Baker
aerodynamics and safety
|
|
gptkbp:developer
|
gptkb:Martin-Baker_Company
|
|
gptkbp:economic_impact
|
significant in aviation safety
|
|
gptkbp:elevation
|
up to 50,000 feet
|
|
gptkbp:exhibits
|
aviation museums
|
|
gptkbp:features
|
lightweight materials
zero-zero capability
|
|
gptkbp:feedback
|
positive reviews
|
|
gptkbp:first_flight
|
gptkb:1964
|
|
gptkbp:height
|
1.2 m
|
|
gptkbp:historical_context
|
Cold War era
|
|
gptkbp:historical_significance
|
gptkb:first_zero-zero_ejection_seat
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
Martin-Baker Mk. 21 S
|
|
gptkbp:influenced_by
|
gptkb:Martin-Baker_Mk._20
|
|
gptkbp:inspiration
|
previous ejection seat designs
|
|
gptkbp:introduced
|
1960s
|
|
gptkbp:is_compatible_with
|
various aircraft models
|
|
gptkbp:is_tested_for
|
extensive testing phases
|
|
gptkbp:is_used_by
|
gptkb:military_base
|
|
gptkbp:legacy
|
influenced future ejection seats
|
|
gptkbp:manufacturer
|
gptkb:Martin-Baker
|
|
gptkbp:max_takeoff_weight
|
gptkb:mythological_figure
up to 600 knots
pyrotechnic system
controlled sequence
|
|
gptkbp:notable_features
|
high altitude performance
|
|
gptkbp:notable_users
|
British military
|
|
gptkbp:operational_area
|
gptkb:aircraft
|
|
gptkbp:operational_status
|
retired
|
|
gptkbp:origin
|
gptkb:UK
|
|
gptkbp:produced_by
|
hundreds produced
|
|
gptkbp:production_years
|
1964-1980
|
|
gptkbp:regulatory_compliance
|
gptkb:military_unit
|
|
gptkbp:related_to
|
gptkb:Martin-Baker_Mk._10
|
|
gptkbp:retirement_year
|
advancements in technology
|
|
gptkbp:safety_features
|
high safety record
dual parachute system
|
|
gptkbp:seating_capacity
|
partial recline
reclined seat
|
|
gptkbp:status
|
gptkb:archaeological_site
|
|
gptkbp:successor
|
gptkb:Martin-Baker_Mk._22
|
|
gptkbp:technology
|
ejection seat technology
|
|
gptkbp:training
|
pilot training programs
|
|
gptkbp:type
|
gptkb:archaeological_site
|
|
gptkbp:weight
|
approximately 60 kg
|
|
gptkbp:width
|
0.5 m
|
|
gptkbp:bfsParent
|
gptkb:Martin-Baker_Mk._21
|
|
gptkbp:bfsLayer
|
7
|