Piel Diamant

{{short description|1960s French light aircraft}} {{Use dmy dates|date=June 2022}} {{Use British English|date=June 2022}}  {{Infobox aircraft | name = CP.60 Diamant | logo = | logo_size = | image = Piel C.P. 605 DIAMANT C-GUMM 01.JPG | alt = | caption = Piel C.P. 605 Diamant | long_caption = | other_names = | aircraft_type = civil utility aircraft | aim = | outcome = | related = | national_origin = France | manufacturer = Homebuilt | design_group = | designer = Claude Piel | builder = | issuer = | status = | owners = | primary_user = | more_users = | service = | major_applications = | proposals = | prototypes = | number_built = | construction_number = | civil_registration = | military_serial = | radio_code = | requirement = | aircraft_carried = | flights = | total_hours = | total_distance = | construction_date = | introduction = | retired = | first_flight = | initiated = | in_service = | last_flight = | expected = | developed_from = | variants = | developed_into = | preservation = | fate = | predecessors = | successors = | concluded = }}

The '''Piel CP.60 Diamant''' is a single-engine light aircraft designed in France in the 1960s and marketed for home building.<ref name="JAE">{{harvnb|Taylor|1989|p=725}}</ref>

==Design and development== The Diamant is a conventional, low-wing cantilever monoplane and essentially an enlarged version of Piel's successful Emeraude designed to accommodate more passengers.<ref name="JAE" /><ref name="JAWA77 495">{{harvnb|Taylor|1977|p=495}}</ref> This extra capacity is provided by a redesigned fuselage which is higher in the rear section and longer overall.<ref name="JAWA77">{{harvnb|Taylor|1977|pp=495–496}}</ref> While the Emeraude has only two seats, side-by-side, the Diamant has an extra bench seat at the rear of the cabin to seat one or two more people.<ref name="JAWA77 495"/> The wingspan is also greater than that of the Emeraude, allowing for a greater maximum take-off weight.<ref name="JAWA77" /> The 110 page set of plans included modifications for retractable gear, tricycle gear, and wing mounted fuel tanks.<ref>{{cite journal|journal=Air Progress Sport Aircraft|date=Winter 1969|page=74}}</ref>

As with the Emeraude, Piel obtained type certification for the Diamant, allowing it to be manufactured on a commercial basis.<ref name="JAWA77 495"/> However, unlike the Emeraude, this did not actually transpire, and the Diamant was only ever built as a homebuilt.<ref name="Simpson">{{harvnb|Simpson|1995|p=283}}</ref>

By the late 1970s, the original versions of the Diamant were no longer offered and had been supplanted by the '''Super Diamant''', designed for more powerful engines and featuring revised tail surfaces.<ref name="JAWA77 495"/>

==Variants== * '''CP.60 Diamant''' - prototype with {{convert|90|hp|kW|abbr=on}} Continental engine.<ref name="jawa67p51">{{harvnb|Taylor|1967|p=51}}</ref> * '''CP.601 Diamant''' - version with {{convert|100|hp|kW|abbr=on}} Continental engine.<ref name="jawa67p51"/> * '''CP.602 Diamant''' - version with {{convert|115|hp|kW|abbr=on}} Potez engine.<ref name="jawa67p51"/> * '''CP.603 Diamant''' - version with 115 hp Lycoming engine * '''CP.604 Super Diamant''' - version with {{convert|145|hp|kW}} Continental engine.<ref name="jawa67p51"/> * '''CP.605 Super Diamant''' - 4 seat version with {{convert|150|kW|0|abbr=on}} Lycoming O-320-E2A engine.<ref name="jawa76p470">{{Harvnb|Taylor|1976|p=470}}</ref> * '''CP.605B Super Diamant''' - CP.605 with retractable tricycle landing gear.<ref name="jawa76p470"/> * '''CP.606 Super Diamant''' - version with 140 hp Lycoming engine * '''CP.607 Super Diamant''' - version with 130 hp Continental engine * '''CP.608 Super Diamant''' - version with 180 hp Lycoming engine * '''CP.615 Super Diamant''' - version with 160 hp engine

==Specifications (CP.605B) == {{Aircraft specs |ref=<ref name="JAWA77"/> |prime units? = met |crew=One pilot |capacity=2-3 passengers |length m=7.00 |span m=9.20 |height m=2.00 |wing area sqm=13.30 |empty weight kg=520 |airfoil=NACA 23015 |aspect ratio=6.4:1 |max takeoff weight kg=850

|eng1 number=1 |eng1 name=Lycoming O-320_E2A |eng1 hp=150 |max speed kmh=260 |never exceed speed kmh=280 |cruise speed kmh=230 |cruise speed note=(econ cruise, 65% power) |stall speed kmh=82 |stall speed note=(flaps down) |range km=1,150 |ceiling m=5,000 |climb rate ftmin=1,082 }}  {{aircontent  |see also= |related= |similar aircraft= |lists= }}

==Notes== {{reflist}}

==References== {{Commons category|Piel CP 605 Diamant}}

* {{cite book |last= Simpson |first= R. W. |title=Airlife's General Aviation |edition=Second |year=1995 |publisher=Airlife Publishing |location=Shrewsbury, UK |isbn=1-85310-577-5 }} * {{cite book |editor-last=Taylor |editor-first=John W. R. |editor-link=John W. R. Taylor |title=Jane's All the World's Aircraft 1967–68 |year=1967 |publisher=Sampson Low, Marston & Company, Ltd. |location=London }} * {{cite book |editor-last=Taylor |editor-first=John W. R. |title=Jane's All the World's Aircraft 1976–77|year=1976 |publisher=Jane's Yearbooks |location=London |isbn=0-354-00538-3 }} * {{cite book |editor-last=Taylor |editor-first=John W. R. |title=Jane's All the World's Aircraft 1977–78 |year=1977 |publisher=Jane's Publishing |location=London |isbn=0-354-00551-0}} * {{cite book |last= Taylor |first= Michael J. H. |title=Jane's Encyclopedia of Aviation |year=1989 |publisher=Studio Editions |location=London }}

Category:1960s French civil utility aircraft Category:Piel aircraft Category:Homebuilt aircraft Category:Single-engined tractor aircraft Category:Low-wing aircraft Category:Single-engined piston aircraft Category:Aircraft with fixed conventional landing gear