Editing AD Navyplane

{{Short description|1910s British float plane project}}
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{{Use dmy dates|date=February 2018}}
{{Use British English|date=February 2018}}
{{Infobox aircraft
 |name=AD Navyplane
 |image=
 |caption=
 |type=Reconnaissance aircraft
 |manufacturer= [[Air Department]]/[[Supermarine]]
 |designer=Harold Bolas
 |first_flight=August 1916
 |introduction=n/a
 |retired=1917-09-27
 |status=Cancelled
 |primary_user=[[Royal Naval Air Service]]
 |more_users=
 |produced=January 1916
 |number_built=1
 |unit cost=
}}
The '''AD Navyplane''' was designed by the [[British Admiralty]]'s [[Air Department]] as a [[reconnaissance aircraft]] for use during [[World War I]].  Performance of the [[prototype]] was so disappointing that plans to produce it were cancelled almost immediately.

The Navyplane was designed by the Admiralty's [[Harold Bolas]] with the assistance of [[R.J. Mitchell]] of [[Supermarine]].  It was a pusher [[floatplane]] [[biplane]] with the pilot and observer being seated ahead of the wings in a streamlined lightweight [[nacelle]] mounted in the gap between the upper and lower sets of wings.  A [[Smith Static]] [[radial engine]] and a [[pusher propeller]] were installed behind them.<ref name="Andrews super p25">Andrews and Morgan 1987, p.25.</ref>

Two examples were ordered in 1916 for the [[Royal Naval Air Service]] (RNAS).<ref name="Andrews super p26">Andrews and Morgan 1987, p.26.</ref>  Serial numbers were allocated for seven Navyplanes (9095-'96, N.1070-'74) but just one prototype (9095) was completed.<ref name="Bruce p9">Bruce 1957, p.9.</ref>  Tests of this Supermarine-built prototype commenced in August [[1916 in aviation|1916]] (flown by Lieutenant-Commander [[John Seddon (aviator)|John Seddon]]) but proved seriously underpowered and unsatisfactory.  The engine was replaced with an AR.1 [[rotary engine]] (which was later redesignated the BR.1 for Bentley Rotary 1) and retested in May 1917.  However, even without a military load and observer, the Navyplane's performance still proved to be poor,<ref name="Mason bomber p65">Mason 1994, p.65.</ref> and the design was abandoned on 27 August 1917,{{Citation needed|date=July 2009}} with no second prototype being produced.

Supermarine attempted to design an improved version to replace the [[Short 184]], the design, the Supermarine Patrol Seaplane, being powered by a 200&nbsp;hp (149&nbsp;kW) Sunbeam engine. While contracts for six aircraft were placed, work was abandoned before a prototype was built, the Short 184 proving adequate in the patrol role.<ref name="Andrews super p26"/><ref name="Mason bomber p65"/>

==Specifications (AD Navyplane)==
{{Aircraft specs
    |ref                        = British Aeroplanes 1914-18 <ref name="Bruce p8-9">Bruce 1957, pp. 8-9.</ref>
    |prime units?               = mph
    <!-- imp or kts first for US aircraft, and UK aircraft pre-metrification, 
    met(ric) first for all others. You MUST choose a format, or no specifications will show -->
    <!--General characteristics-->
    |crew                   = 2
    |capacity               = 
    |length ft              = 27
    |length in              = 9
    |span ft                = 36
    |span in                = 0
    |height ft              = 12
    |height in              = 9
    |wing area sqft         = 364
    |aspect ratio           = 
    |airfoil                = 
    |empty weight lb        = 2042
    |gross weight kg        = 
    |gross weight lb        = 2550
    |max takeoff weight kg  = 
    |max takeoff weight lb  = 
    |more general           = 
    <!--Powerplant-->
    |eng1 number            = 1
    |eng1 name              = [[Bentley BR.1|Bentley A.R.1]]
    |eng1 type              = [[rotary engine]]
    |eng1 hp                = <!-- prop engines --> 150
    |prop dia m             = <!-- propeller aircraft --> 
    |prop dia ft            = <!-- propeller aircraft --> 
    |prop dia in            = <!-- propeller aircraft --> 
    <!--Performance-->
    |max speed mph          = 64.5
    |max speed kts          = 
    |max speed note         = 
    |max speed mach         = 
    |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 = 
    |range km               = 
    |range miles            = 
    |range nmi              = 
    |endurance              = 6 hr
    |ceiling m              = 
    |ceiling ft             = 1300
    |ceiling note           = 
    |climb rate ms          = 
    |climb rate ftmin       = 
    |climb rate note        = 
|time to altitude=30 min to {{convert|2000|ft|m|abbr=on}}
    <!--Armament-->
    |guns                   = 1× .303 in (0.770 mm) [[Lewis machine gun]] on flexible mount for observer
    |bombs                  = Provision for bombs<ref name="Mason bomber p65"/>

    }}

==See also==
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==References==
;Notes
{{Reflist}}
;Bibliography
*Andrews, C. F., and Morgan, E. B. ''Supermarine Aircraft since 1914''. London:Putnam, 1987, {{ISBN|0-85177-800-3}}.
*Bruce, J.M . ''British Aeroplanes 1914-18''. London:Putnam, 1957.
*Mason, Francis K. ''The British Bomber since 1914''. London:Putnam, 1994. {{ISBN|0-85177-861-5}}.

{{Air Department aircraft}}

{{DEFAULTSORT:Ad Navyplane}}
[[Category:Air Department aircraft|Navyplane]]
[[Category:1910s British military reconnaissance aircraft]]
[[Category:Single-engined pusher aircraft]]
[[Category:Flying boats]]
[[Category:Supermarine aircraft]]
[[Category:Biplanes]]
[[Category:Aircraft first flown in 1916]]
[[Category:Rotary-engined aircraft]]