<!-- This article is a part of Wikipedia:WikiProject Aircraft. Please see Wikipedia:WikiProject Aircraft/page content for recommended layout. --> {{Infobox aircraft | name = CAMS 80 | logo = | logo_size = | image = CAMS 80 NACA aircraft Circular No.158.jpg | alt = | caption = | long_caption = | other_names = | aircraft_type = maritime Reconnaissance aircraft | aim = | outcome = | related = | national_origin = France | manufacturer = Chantiers Aéro-Maritimes de la Seine (C.A.M.S.) | design_group = | designer = | builder = | issuer = | status = | owners = | primary_user = Aéronavale | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = 2 | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = 1933 | retired = 1938 | first_flight = 1932 | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}
The '''CAMS 80''' was an amphibious reconnaissance flying boat flown in the early 1930s. Two were built with different engines and were used by the Aéronavale for VIP transport and equipment development until 1938.
==Design and development==
The all-metal CAMS 80 had a one-piece high wire-braced wing. This was built around two spars and had three distinct sections, with a long rectangular centre-section which occupied just over half the span and was mounted, without dihedral, on top of the fuselage. It was braced on each side by pairs of wires, upper ones running from the engine mounting to the spars at the end of the wing centre-section and below from the lower fuselage to the same points. Stabilizing floats on short struts were also positioned there. The outer sections were almost triangular, though with rounded tips and set with about 7° of dihedral to keep the tips clear of the water. Ailerons filled their trailing edges.<ref name=Flight/><ref name=LaeroN/>
The CAMS 80 had a flat-sided fuselage. The planing underside was curved rather than V-shaped in cross-section and had two steps, one under the trailing edge of the wing and the other further aft.<ref name=LaeroN/> There was one open crew position in the nose, wrapped round with a long, shallow window and fitted with a flexible gun mounting.<ref name=LaeroN/><ref name=PG/> The pilots occupied an enclosed, multi-glazed cockpit ahead of the leading edge. Just behind the trailing edge there was another circular open gunner's-type position. At the rear the fin was broad and triangular with the tailplane, also triangular, mounted about half-way up. Both rudder and very high aspect ratio elevators were straight edged.<ref name=LaeroN/>
It was an amphibian with retractable wheels on cranked axles with rearward drag struts hinged from the fuselage sides and with near-vertical shock absorber legs. Other struts facilitated the raising of the wheels above the waterline<ref name=LaeroN/> but no details are known.
The CAMS 80 was powered by a single, tractor engine mounted centrally over the wing on pairs of narrow, transverse V-struts diagonally braced together; the forward pair contained a tall, tapered radiator. The engine was tilted slightly upwards and the propeller rotated over the wing.<ref name=LaeroN/> The two examples built were fitted with several different water-cooled engines. Whilst under construction in 1929 the first prototype was described as having a {{convert|450|hp|kW|abbr=on|disp=flip}} Hispano engine,<ref name=Lailes1/> but was on display, unflown, at the 1930 Paris Salon, with a {{convert|700|hp|kW|abbr=on|disp=flip}} Lorraine 18G Orion W-18 engine.<ref name=Flight/> The CAMS 80 was, however, first flown powered by a {{convert|650|hp|kW|abbr=on|disp=flip}} Hispano 12Nbr V-12 engine in 1932.<ref name=PG/> A second prototype, flown two years later, powered by a {{convert|860|hp|kW|abbr=on|disp=flip}} Hispano 12Ydrs V-12, differed from the first aircraft in having an open cockpit.<ref name=PG/>
==Operational history==
In September 1933 the first prototype went into service with the French Naval Air Arm following fin modifications and the successful completion of its reception tests at the Saint Raphaël base.<ref name=Laero/> There, early in 1934, it was contributing to long running tests of Ratier variable pitch propellers. Take-off time was reduced from about 19 seconds to 13 seconds, an improvement of 28%.<ref name=Lailes2/> It was later used to transport VIPs.<ref name=PG/> The second prototype joined it in the Air Arm, flight testing navigational instrumentation and radio equipment.<ref name=PG/>
They were retired in 1938 because of corrosion.<ref name=PG/>
==Operators== *{{flag|France}} **Aéronavale
==Specifications (Lorraine 18G engine) == thumb|CAMS 80 3-view drawing from NACA aircraft Circular No.158 {{Aircraft specs |ref=General - L'Aérophile-Salon, November 1930<ref name=LaeroP1/> |prime units?=met <!-- General characteristics --> |genhide=
|crew=Three |length m=12.95 |length note= |span m=24.60 |span note= |height m=5.10 |height note= |wing area sqm=62.4 |wing area note= |aspect ratio=<!-- sailplanes --> |airfoil= |empty weight kg=2625 |empty weight note= |gross weight kg=3975 |gross weight lb= |gross weight note= |max takeoff weight kg= |max takeoff weight lb= |max takeoff weight note= |fuel capacity={{convert|1060|L|Impgal USgal|abbr=on}}<ref name=LaeroN/> |more general= <!-- Powerplant --> |eng1 number=1 |eng1 name=Lorraine 18G Orion<ref name=Flight/> |eng1 type=W-18 water-cooled piston engine |eng1 hp=700 |more power=
|prop blade number=2 |prop name= |prop dia m=<!-- propeller aircraft --> |prop dia ft=<!-- propeller aircraft --> |prop dia in=<!-- propeller aircraft --> |prop dia note=
<!-- Performance --> |perfhide=Y
|max speed kmh= |max speed mph= |max speed kts= |max speed note= |cruise speed kmh= |cruise speed mph= |cruise speed kts= |cruise speed note= |stall speed kmh= |stall speed mph= |stall speed kts= |stall speed note= |never exceed speed kmh= |never exceed speed mph= |never exceed speed kts= |never exceed speed note= |minimum control speed kmh= |minimum control speed mph= |minimum control speed kts= |minimum control speed note= |range km= |range miles= |range nmi= |range note= |combat range km= |combat range miles= |combat range nmi= |combat range note= |ferry range km= |ferry range miles= |ferry range nmi= |ferry range note= |endurance=<!-- if range unknown --> |ceiling m= |ceiling ft= |ceiling note= |g limits=<!-- aerobatic --> |roll rate=<!-- aerobatic --> |glide ratio=<!-- sailplanes --> |climb rate ms= |climb rate ftmin= |climb rate note= |time to altitude= |sink rate ms=<!-- sailplanes --> |sink rate ftmin=<!-- sailplanes --> |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= <!-- Armament --> |armament=<!-- add bulletted list here or if you want to use the following specific parameters, remove this parameter--> |guns= |bombs= |rockets= |missiles= |hardpoints= |hardpoint capacity= |hardpoint rockets= |hardpoint missiles= |hardpoint bombs= |hardpoint other=
|avionics= }}
==References== {{Commons category}}{{reflist|2|refs=
<ref name=PG>{{cite book |title= Aeronautique Navale de chez nous |last=Gaillard|first=Pierre| year=1996|publisher=Éditions MDM |location=Paris |isbn=2-909313-30-1|page=47}}</ref>
<ref name=Flight>{{cite journal |date=12 December 1930|title=C.A.M.S.|journal= Flight|volume=XXII |issue=80 |pages=1430 |url= https://www.flightglobal.com/pdfarchive/view/1930/untitled0%20-%201508.html}}</ref>
<ref name=LaeroP1>{{cite journal |date=28 November 1930 |title=C.A.M.S.|journal=L'Aérophile|pages=106|url=http://gallica.bnf.fr/ark:/12148/bpt6k6554308c/f107 }}</ref>
<ref name=LaeroN>{{cite journal |journal=L'Aéronautique |date=December 1931 |issue=150 |pages=99–100|title= V. Aviation navale| url=http://gallica.bnf.fr/ark:/12148/bpt6k6554809h/f19 }}</ref>
<ref name=Lailes1>{{cite journal |date=19 September 1929|title=D'intéressants hydravions sont en construction|journal=Les Ailes|issue=431 |pages=9|url=http://gallica.bnf.fr/ark:/12148/bpt6k6554661s/f9 }}</ref>
<ref name=Lailes2>{{cite journal |date=18 January 1934|title=A Saint-Raphaël, les essais officiels des hélices Ratier à pas variable ont donné des résultats très favorables|journal=Les Ailes|issue=657 |pages=9|url=http://gallica.bnf.fr/ark:/12148/bpt6k6576022s/f6 }}</ref>
<ref name=Laero>{{cite journal |date=8 September 1933|title=A Saint-Raphaël|journal=L'Aéro |volume=25|issue=1319 |url=http://gallica.bnf.fr/ark:/12148/bpt6k58278435/f3 }}</ref>
}} <!-- ==Further reading== --> <!-- ==External links== -->
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{{CAMS aircraft}}
Category:Flying boats Category:Amphibious aircraft Category:CAMS aircraft Category:1930s French military reconnaissance aircraft Category:Single-engined tractor aircraft Category:High-wing aircraft Category:Aircraft first flown in 1932