• Facets (new session)
• Description
• Metadata
• Settings
  • Rule: ActivityStreamsMapasEquivalentb3sb3sifpdbprdf-labelfacetshttp://dbpedia.org/resource/inference/rules/dbpedia#http://dbpedia.org/resource/inference/rules/opencyc#http://dbpedia.org/resource/inference/rules/umbel#http://dbpedia.org/resource/inference/rules/yago#http://dbpedia.org/schema/property_rules#http://www.ontologyportal.org/inference/rules/SUMO#http://www.ontologyportal.org/inference/rules/WordNet#http://www.w3.org/2002/07/owl#ldpoplwebskos-transurn:det:rdf:labelvirtrdf-labelvirtrdf-urlNone
    
  • Inverse Functional Properties: Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects
  • "Same As": Disabled (fastest) Apply to subjects only Apply to objects only Apply to both subjects and objects (recommended) Apply to subjects, objects and predicates (not recommended on big datasets) Apply to predicates only (special use cases only)

About: Project Isinglass     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatAbandonedMilitaryAircraftProjectsOfTheUnitedStates, within Data Space : dbpedia.org associated with source document(s)

Type: Thingschema:Productmean of transportationAircraftyago:WikicatBlackProjectsyago:Abstraction100002137yago:Act100030358yago:Activity100407535yago:Category105838765yago:Cognition100023271yago:Concept105835747yago:Content105809192yago:Event100029378yago:Idea105833840yago:Kind105839024yago:PsychologicalFeature100023100yago:Work100575741yago:YagoPermanentlyLocatedEntityaircraftyago:Type105840188yago:Undertaking100795720yago:WikicatAbandonedMilitaryAircraftProjectsOfTheUnitedStates New Facet based on Instances of this Class

Project Isinglass was the code name given to two heavily classified, crewed reconnaissance aircraft studied by the Central Intelligence Agency (CIA) as potential replacements for the Lockheed A-12 and SR-71 during the mid-1960s. The first proposal under the Isinglass name, a high-altitude plane to fly at Mach 4 – Mach 5 (4,900–6,100 km/h; 3,000–3,800 mph), was considered an insufficient advancement over existing aircraft; the second, much more advanced design, sometimes referred to as Project Rheinberry, was an air-launched, Mach 20 (24,500 km/h; 15,200 mph) rocket-powered boost-glide aircraft that would use a very-high-altitude trajectory to avoid defenses. This aircraft was considered too costly for development, and the project was abandoned in 1967.