1. Design and development

2. Specifications

3. Notes

4. References

The Lumière-de Monge racer was built specifically to compete in the 1921 Coupe Deutsch de la Meurthe, flown at Etampes on 1 October 1921. As well as being fast, it was unusual in being a high wing monoplane which could be rapidly converted into a biplane by adding smaller lower wing. It crashed, fatally, before the race.

Design and development

The structure of the racer throughout was wooden and its covering fabric.^[2]

The one-piece permanent, upper wing, trapezoidal in plan and with an aspect ratio of only 4.3, was built around two spars, the forward one in two parts parallel to the leading edges and the one-piece rear spar perpendicular to the aircraft's axis. It was mounted on the top of the fuselage on a long, streamlined pylon that included the pilot's cabin and was braced to the lower fuselage by a single strut on each side, made from layers of mahogany in the same way as the aircraft propellers de Monge was well known for. Ailerons were fitted only on the upper wing. The two-piece, rectangular plan lower wing, with three-quarters of the span of the upper wing but only one-third of its area, was mounted on the lower fuselage and braced to the upper wing by V-struts.^[3]

The racer was powered by a {{convert|300|hp|kW|abbr=on|order =flip}}, liquid cooled V-8 Hispano-Suiza 8Fb engine, closely cowled and with a cylindrical Lamblin radiator mounted axially above the upper wing. Its fuel tank was in the fuselage, which was built in a novel way based on an internal tapered tube with clamping frames around it. Externally the fuselage was rounded in section and slimmed down markedly to the tail. There was an opening in the tube for the pilot's cabin in the rear part of the wing pylon, near mid-chord. It was accessed via a side door and had large side windows giving good lateral vision, even with the lower wing in place, and there was a transparent panel in the upper wing over the cockpit but the pylon ahead limited the forward view.^[3]

The Monge had a conventional tail, with a generous tailplane low on the fuselage carrying notched elevators and with an overall roughly oval plan. Its fin was integrated into the fuselage and carried a D-shaped rudder that reached downwards to match an extension of the lower fuselage under the tailplane that carried a rubber-damped tailskid. The fixed main landing gear had mainwheels on a single axle, with shock absorbers within a streamlined housing that joined the landing legs. The legs were also enclosed in fairings.^[3]

The exact date of the de Monge's first flight is not known but was before mid-July 1921, when Bernard de Romanet flew it at Orly.^[6] Development flights continued into September^[7] without reported problems, but on 23 September de Romanet flew it as a monoplane, with the lower wings removed, for the first time. He took-off safely but when he opened the throttle and the aircraft accelerated, the fabric covering of one wing peeled away. De Romanet died in the crash.^[8]

Some of the racer's characteristics, the fuselage in particular, are seen in the Buscaylet-de Monge 5/2, a 1922 fighter designed after Monge's move to Buscaylet et Cie. However, the fighter's parasol wing was a completely new design, all-metal, swept and with a higher aspect ratio.^[9]

Specifications

|genhide=
|crew=One
|length m=7
|upper span m=8
|lower span m=6
|lower span note=optional
|height m=2.75
|wing area sqm=15
|wing area note=upper wing, optional lower {{convert|5|sqm|sqft|abbr=on}}
|aspect ratio=
|airfoil=
|empty weight kg=
|empty weight lb=
|empty weight note=
|gross weight kg=950
|max takeoff weight kg=
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=

|eng1 number=1
|eng1 name=Hispano-Suiza 8Fb
|eng1 type=liquid cooled V-8
|eng1 hp=300
|prop blade number=2
|prop name=
|prop dia m=
|prop dia ft=
|prop dia in=
|prop dia note=

|perfhide=Y
|max speed kmh=330
|max speed note=estimated^[2]
|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=
|endurance=
|ceiling m=
|ceiling ft=
|ceiling note=
|g limits=
|roll rate=
|glide ratio=
|climb rate ms=
|climb rate ftmin=
|climb rate note=
|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=
|disk loading kg/m2=
|disk loading lb/sqft=
|fuel consumption kg/km=
|fuel consumption lb/mi=
|power/mass=
|thrust/weight=
|more performance=
}}

Notes

References

• 65th Infantry Division (Russian Empire)
• 65th & Ingleside
• 65th Military Airlift Support Group
• 65th Miss Universe
• 65th Miss Universe Pageant
• 65th National Film Awards
• 65th National Hockey League All-Star Game
• 65th New York Volunteer Infantry
• 65th NHK Kohaku Uta Gassen
• 65th (Norfolk Yeomanry) Anti-Tank Regiment, Royal Artillery
• 65th Rifle Division
• 65th Rifle Division (Soviet Union)
• 65th Scripps National Spelling Bee
• 65th Strategic Reconnaissance Wing
• 65th Strategic Squadron
• 65th Street (disambiguation)
• 65th Troop Carrier Wing
• 65th Wyoming State Legislature
• 65 UMa
• 65 Ursae Majoris
• 65 Windmill Street, Millers Point
• 65 (year)
• 6.5×47 mm
• 6.5×52mm
• 6.5×53mm Dutch