“Ostrovia II”的意思、由来-开放百科全书

词条

Ostrovia II

释义

Design and development
Operational history
Variants
Specifications
References

name=Ostrovia II

image=

caption=

}}{{Infobox Aircraft Type

type=Two seat sports aircraft

national origin=Poland

manufacturer=Josef Morison (or Moryson)

designer=Josef Morison (or Moryson)

first flight=24 September 1930

status=

primary user=

more users=

produced=

number built=1

program cost=

unit cost=

developed from= Ostrovia I

variants with their own articles=
}}

The Ostrovia II or Moryson II was a 1930s Polish club trainer aircraft, a development of the Ostrovia I. Only one was built and was used by the Poznań flying club for five years.

Design and development

In 1929 Jozef Morisson (sometimes written Moryson) designed a significantly revised version of the Ostrovia I which he named the Ostrovia II. It was built with funding from LOPP and first flew on 24 September 1930.

Like the Ostrovia I, the new design had a low cantilever wing built around two spars, but it employed a blend of four different airfoil sections and was tapered in plan. It was built in three parts, a centre-section which contained the two fuel tanks and two outer panels. Plywood covered the underside and leading edge, with fabric covering elsewhere. Compared with the Ostrovia I, the wing area was increased by 12%%. The outer panels could be folded back on rear-spar hinges along the fuselage for road transport; when folded the width was {{convert|2.9|m|ft|abbr=on}}.

The Ostrovia II was initially powered by a {{convert|80-95|hp|kW|abbr=on|order=flip}} Armstrong-Siddeley Genet five-cylinder radial engine which was mounted on the nose uncowled. Sometime after September 1931 this was replaced by a {{convert|85|hp|kW|abbr=on|order=flip}} Cirrus III four-cylinder upright inline with its enclosed air-cooled cylinders projecting well above the nose. Like the Ostrovia I, the Ostrovia II had a rectangular section fuselage based on four longerons and was ply covered. Its two open cockpits were in tandem and fitted with dual control. Originally the empennage was square tipped, with ply covered fin and rudder but with fabric-covered horizontal surfaces. Later these angular surfaces were revised to have rounded tips. The tailplane could be adjusted in flight.

The fixed landing gear of the Ostrovia II was more aerodynamically refined than that of its predecessor. It was of the divided type, with mainwheels on two cranked axles hinged from the centerline of the fuselage underside with their ends attached via rubber chord shock absorbers to steel-tube V-struts from the lower longerons.

Operational history

After successful flight trials the Ostrovia II was used by the Poznań flying club for five years. It competed under Genet power in the Fourth National Lightplane Contest in September 1931, coming eleventh out of twenty-two. After the installation of the Cirrus engine it took part in several national meetings, though without distinction.

Variants

Ostrovia II; Also known as the Moryson II, as described.
Moryson III; Powered by a {{convert|85|hp|kW|abbr=on|order=flip}} Walter Vega it was completed in 1935 but was refused a permit to fly because of constructional and other problems.
Moryson IV; An unbuilt cabin version with a more powerful engine.

Specifications

{{Aircraft specs
|ref=Cynk (1971) except where noted
|prime units?=met

|genhide=
|crew=One pilot
|capacity=One passenger
|length m=6
|length note=
|span m=10.5
|span note=
|height m=2.5
|height note=
|wing area sqm=15
|wing area note=
|aspect ratio=
|airfoil=
|empty weight kg=350
|empty weight note=
|gross weight kg=
|gross weight lb=
|gross weight note=
|max takeoff weight kg=650
|max takeoff weight note=
|fuel capacity={{convert|160|l|Impgal USgal|abbr=on}} (main tanks)
|more general=

|perfhide=
|max speed kmh=180
|max speed note=at sea level
|cruise speed kmh=150
|cruise speed note=^[6]
|stall speed kmh=78
|stall speed note=^[6]
|never exceed speed kmh=
|never exceed speed mph=
|never exceed speed kts=
|never exceed speed note=
|range km=750
|range note=^[6]
|ceiling m=4000
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=3.2
|climb rate note=^[6]
|time to altitude=
|sink rate ms=
|sink rate ftmin=
|sink rate note=
|lift to drag=
|wing loading kg/m2=
|wing loading lb/sqft=
|wing loading note=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=
|more performance=
}}

References

1. ^¹²³⁴{{cite web |url=http://www.samolotypolskie.pl/samoloty/1939/126/Moryson-II-Ostrovia-II|title= Moryson II "Ostrovia II", 1930 |author= |date= |work= |publisher= |accessdate=5 February 2018}}

^[1]
}}

2 : Single-engined tractor aircraft|Polish sport aircraft 1930–1939

随便看

开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。