About: Spitfire Mark I

Property	Value
dbo:abstract	The Spitfire Mark I was a utility helicopter built in the United States in the late 1970s and intended for series production. In essence, the Mark I was an Enstrom F-28 that was modified to use an Allison 250 turboshaft engine and geared transmission in place of the original piston engine and system of vee belts. The resulting powerplant installation was lighter and more compact, which allowed for additional cargo or fuel. Spitfire Helicopters' parent company, Fetsko Aviation Sales and Transportation began work on the prototype in January 1976, and on a number of pre-production aircraft in February 1977. Fetsko displayed a mockup of the concept at the at Reading, Pennsylvania in June 1976. The prototype (registered N4890) first flew in December 1978. By May 1979, Spitfire had supplemental approval for the turbine conversion and by July, the company reported that it had sold 42 examples of the Mark I and Mark II and expected to build 60 aircraft during 1980. The engine installation on production models was to be slightly further forward than on the prototype. However, Spitfire remained dependent on Enstrom to supply airframes for remanufacture, and Enstrom distanced itself from the project somewhat. Competing plans by Enstrom and Spitfire to market Polish-built Mil Mi-2 helicopters in the United States might have contributed to the friction. In Spitfire's version of the deal, Polish manufacturer PZL-Świdnik would also contribute to the Spitfire manufacturing efforts. By November 1979, Enstrom refused to supply airframes to Spitfire. The situation improved somewhat in the 1980s, and Spitfire president Jack Fetsko reported in May 1983 that relations with Enstrom had improved to the point where the two companies could "talk programs". By that time, costs had increased from $US 165,000 expected in 1979 to $US 285,000 but Spitfire had taken deposits for 50 Mark Is, and had a firm sale for the first production aircraft. Together with companies and , Spitfire formed a new venture, Spitfire Helicopters International, to manufacture the Mark I and Mark II in Málaga, Spain. Nothing came of the joint venture, and Spitfire's attempts to market F-28 derivatives came to an end. In the 1990s, Enstrom marketed its own turbine-powered version of the F-28 as the Enstrom 480. (en)
dbo:manufacturer	dbr:Spitfire_Helicopters_Inc.
dbo:predecessor	dbr:Enstrom_F-28
dbo:wikiPageExternalLink	http://www.flightglobal.com/pdfarchive/view/1976/1976%20-%201155.html http://www.flightglobal.com/pdfarchive/view/1977/1977%20-%200429.html http://www.flightglobal.com/pdfarchive/view/1979/1979%20-%201093.html http://www.flightglobal.com/pdfarchive/view/1979/1979%20-%201510.html http://www.flightglobal.com/pdfarchive/view/1979/1979%20-%201642.html http://www.flightglobal.com/pdfarchive/view/1979/1979%20-%202510.html http://www.flightglobal.com/pdfarchive/view/1979/1979%20-%204018.html http://www.flightglobal.com/pdfarchive/view/1983/1983%20-%200780.html https://web.archive.org/web/20121104113104/http:/www.flightglobal.com/pdfarchive/view/1983/1983%20-%200780.html
dbo:wikiPageID	31096373 (xsd:integer)
dbo:wikiPageLength	8322 (xsd:nonNegativeInteger)
dbo:wikiPageRevisionID	1030446214 (xsd:integer)
dbo:wikiPageWikiLink	dbr:Enstrom_480 dbr:Enstrom_F-28 dbr:Málaga dbc:Spitfire_Helicopter_aircraft dbr:Flight_International dbr:PZL-Świdnik dbc:1970s_United_States_civil_utility_aircraft dbc:Aircraft_first_flown_in_1978 dbc:1970s_United_States_helicopters dbr:Supermarine_Spitfire dbr:Mil_Mi-2 dbr:Reading,_Pennsylvania dbr:Allison_250 dbr:Spitfire_Helicopters_Inc. dbr:Spitfire_Mark_II dbr:National_Maintenance_and_Operations_Meeting dbr:Sodian dbr:Soprea
dbp:capacity	two passengers (en)
dbp:ceilingFt	15000 (xsd:integer)
dbp:ceilingM	4570 (xsd:integer)
dbp:crew	one pilot (en)
dbp:developedFrom	dbr:Enstrom_F-28
dbp:emptyWeightKg	567 (xsd:integer)
dbp:emptyWeightLb	1250 (xsd:integer)
dbp:eng1Hp	420 (xsd:integer)
dbp:eng1Kw	313 (xsd:integer)
dbp:eng1Name	Allison 250-C20B (en)
dbp:eng1Number	1 (xsd:integer)
dbp:firstFlight	December 1978 (en)
dbp:grossWeightKg	1043 (xsd:integer)
dbp:grossWeightLb	2300 (xsd:integer)
dbp:heightFt	9 (xsd:integer)
dbp:heightIn	2 (xsd:integer)
dbp:heightM	2.790000 (xsd:double)
dbp:lengthFt	29 (xsd:integer)
dbp:lengthIn	5 (xsd:integer)
dbp:lengthM	8.960000 (xsd:double)
dbp:manufacturer	dbr:Spitfire_Helicopters_Inc.
dbp:maxSpeedKmh	208 (xsd:integer)
dbp:maxSpeedMph	129 (xsd:integer)
dbp:nationalOrigin	United States (en)
dbp:primeUnits?_	imp (en)
dbp:rangeKm	724 (xsd:integer)
dbp:rangeMiles	450 (xsd:integer)
dbp:ref	Taylor 1977, p.411 (en)
dbp:rotAreaSqft	804 (xsd:integer)
dbp:rotAreaSqm	74.700000 (xsd:double)
dbp:rotDiaFt	32 (xsd:integer)
dbp:rotDiaIn	0 (xsd:integer)
dbp:rotDiaM	9.750000 (xsd:double)
dbp:rotNumber	1 (xsd:integer)
dbp:type	utility helicopter (en)
dbp:unitCost	$US 285,000 in 1983 (en)
dbp:wikiPageUsesTemplate	dbt:About dbt:Cite_book dbt:Cite_journal dbt:Reflist dbt:Short_description dbt:Aircontent dbt:Aircraft_specs dbt:Infobox_Aircraft_Type dbt:Spitfire_Helicopters
dcterms:subject	dbc:Spitfire_Helicopter_aircraft dbc:1970s_United_States_civil_utility_aircraft dbc:Aircraft_first_flown_in_1978 dbc:1970s_United_States_helicopters
gold:hypernym	dbr:Helicopter
rdf:type	owl:Thing schema:Product dbo:MeanOfTransportation wikidata:Q11436 yago:Abstraction100002137 yago:Category105838765 yago:Cognition100023271 yago:Concept105835747 yago:Content105809192 yago:Idea105833840 yago:Kind105839024 yago:PsychologicalFeature100023100 dbo:Aircraft yago:Type105840188
rdfs:comment	The Spitfire Mark I was a utility helicopter built in the United States in the late 1970s and intended for series production. In essence, the Mark I was an Enstrom F-28 that was modified to use an Allison 250 turboshaft engine and geared transmission in place of the original piston engine and system of vee belts. The resulting powerplant installation was lighter and more compact, which allowed for additional cargo or fuel. (en)
rdfs:label	Spitfire Mark I (en)
owl:sameAs	freebase:Spitfire Mark I wikidata:Spitfire Mark I https://global.dbpedia.org/id/4vehZ
prov:wasDerivedFrom	wikipedia-en:Spitfire_Mark_I?oldid=1030446214&ns=0
foaf:isPrimaryTopicOf	wikipedia-en:Spitfire_Mark_I
is dbo:predecessor of	dbr:Spitfire_Mark_II_Tigershark
is dbo:successor of	dbr:Enstrom_F-28
is dbo:wikiPageDisambiguates of	dbr:Spitfire_(disambiguation)
is dbo:wikiPageRedirects of	dbr:Spitfire_Helicopters_Spitfire_Mk.I dbr:Spitfire_Helicopter_I dbr:Spitfire_Mk.1
is dbo:wikiPageWikiLink of	dbr:Enstrom_TH180 dbr:List_of_aircraft_(Sp) dbr:Enstrom_F-28 dbr:Spitfire_(disambiguation) dbr:Spitfire_Helicopters_Spitfire_Mk.I dbr:Spitfire_Mark_II_Tigershark dbr:Spitfire_Helicopter_I dbr:Spitfire_Mk.1
is dbp:developedFrom of	dbr:Spitfire_Mark_II_Tigershark
is dbp:variantsWithTheirOwnArticles of	dbr:Enstrom_F-28
is foaf:primaryTopic of	wikipedia-en:Spitfire_Mark_I