| 词条 | Utva-65 | |||||||||||||||
| 释义 |
The Utva-65 Privrednik (Merchant) is a Yugoslav civil aircraft designed and used for agricultural work.[1] Design and developmentThe Utva-65 was designed specifically as an agricultural aircraft. It was a single-seat, low-wing braced monoplane with a single engine.[2] The wings were essentially identical to those of the high-wing UTVA-60 apart from the wing roots, which were extended and strengthened so that the chord was greater and the wingspan increased by {{convert|0.82|m|ft}}[3] These wings were of single-spar, all-metal construction, carrying ailerons that linked to the flaps, drooping 15 degrees when the flaps were set to 40 degrees. A single streamlined strut ran from the upper fuselage to mid-wing on either side, with minor struts from them to the wing at about one-quarter span. The conventional all-metal tail surfaces were also from the UTVA-60, but had increased elevator area.[3] The fuselage of the Utva-65 had a steel-tube structure, with metal skinning forward and below and fabric elsewhere.[3] The single-seat pilot's cockpit was high and behind the trailing edge; combined with all-round glazing, this gave a good view and also increased fuselage space. There was a {{convert|0.75|m3|cuft|adj=on|sp=us}} hopper for fertilizer, spray, etc. ahead of the cockpit.[4] Standard spray bars could be fitted under the trailing edge. The undercarriage was of the conventional tailwheel kind, with cantilever main legs angling outwards from the wing root. At launch there were three choices of engine, all Lycoming six-cylinder horizontally-opposed air-cooled types. The GO-480-B1A6 produced 270 hp (200 kW), the geared GO-480-G1A6 290 hp (216 kW), and the IGO-540-B1A 350 hp (260 kW).[3] A later variant of the Utva-65, the Utva-67 (first flown in 1967), was similar, but had the eight-cylinder, 400{{nbhyph}}hp (298 kW) Lycoming IO-720-A1A and a revised fuselage of greater capacity. Its top speed was {{convert|295|km/h|mph|abbr=on}}. Operational historyThe Utva-65 was used in Yugoslavia by agricultural cooperatives for pesticide application and mosquito control. The Algerian airline Societé de Travail Aérien began operations in October 1968 using five Utva-65 aircraft for similar work.[5] Variants
Variant with a 295 hp (220 kW) Lycoming GO-480-G1A6.[6]
Alternate variant with a 300 hp (224 kW) Lycoming IO-540-K1A5.[6]
1973 variant with a 350 hp (261 kW) Lycoming IO-540-A1C engine.[6] Operators
Aircraft On Display
A Utva-65 S is on display. Specifications (Lycoming IGO-540-B1A){{Aerospecs|ref=Jane's 1966–7 p.367 |met or eng?=met |crew=1 |capacity= |length m=8.46 |length ft=27 |length in=9 |span m=12.22 |span ft=40 |span in=1 |swept m= |swept ft= |swept in= |rot number= |rot dia m= |rot dia ft= |rot dia in= |dia m= |dia ft= |dia in= |width m= |width ft= |width in= |height m=2.60 |height ft=8 |height in=6½ |wing area sqm=19.4 |wing area sqft=209 |swept area sqm= |swept area sqft= |rot area sqm= |rot area sqft= |volume m3= |volume ft3= |aspect ratio= |wing profile= |empty weight kg=700 |empty weight lb=1,543 |gross weight kg=1,890 |gross weight lb=4,165 |lift kg= |lift lb= |eng1 number=1 |eng1 type=Lycoming IGO-540-B1A six-cylinder horizontally-opposed |eng1 kw=260 |eng1 hp=350 |eng1 kn= |eng1 lbf= |eng1 kn-ab= |eng1 lbf-ab= |eng2 number= |eng2 type= |eng2 kw= |eng2 hp= |eng2 kn= |eng2 lbf= |eng2 kn-ab= |eng2 lbf-ab= |max speed kmh=234 |max speed mph=145 |max speed mach= |cruise speed kmh=192 |cruise speed mph=119 |stall speed kmh=76 |stall speed mph=47 |range km=with 185 L fuel 620 |range miles=385 |endurance h= |endurance min= |ceiling m= |ceiling ft= |g limits= |roll rate= |glide ratio= |climb rate ms= |climb rate ftmin= |sink rate ms= |sink rate ftmin= |armament1= |armament2= |armament3= |armament4= |armament5= |armament6= }} See also{{Aircontent|see also= |related= |similar aircraft=
|lists= }} ReferencesNotes1. ^http://www.vazduhoplovnetradicijesrbije.rs/index.php/clanak/128-utva-65 2. ^{{cite journal | url = http://www.flightglobal.com/pdfarchive/view/1965/1965%20-%201670.html | type = PDF | title = Sport and Business | journal = Flight International | page = 902 | date = 10 June 1965 | publisher = Reed Business Information | accessdate = 29 January 2011 | issn = 0015-3710}} 3. ^1 2 3 {{Harvnb|Taylor|1966|pages=367}} 4. ^{{Harvnb|Green|1966|pages=250–1}} 5. ^{{cite journal | url = http://www.flightglobal.com/pdfarchive/view/1971/1971%20-%200733.html | type = PDF | journal = Flight International | date = 4 May 1971 | page = 644 | title = World Airlines | issn = 0015-3710 | accessdate = 29 January 2011 | publisher = Reed Business Information}} 6. ^1 2 {{Harvnb |Orbis|1985 | p=3035}} Bibliography{{Refbegin}}
5 : Yugoslav agricultural aircraft 1960–1969|UTVA aircraft|Low-wing aircraft|Single-engined tractor aircraft|Aircraft first flown in 1965 |
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