- Design and development
- Variants
- Applications
- Specifications
- References
| name=Mengin B | image= | caption= }}{{Infobox Aircraft Engine | type=Air-cooled flat-twin piston engine | manufacturer=Mengin | designer=René Poinsard | national origin=France | first run= | major applications= | produced=1933-40 | number built= | program cost= | unit cost= | developed from= | variants with their own articles=
}} |
The Poinsard 25 hp or Mengin Type B is a small, two-cylinder, air-cooled, horizontally opposed aircraft engine built in France. it was manufactured by Établissements Pierre Mengin from a design by René Poinsard. Power was around 19 kW (25 hp) at 2,280 rpm. Design and developmentThe first two engines built by Mengin were designed by René Poinsard and are often referred to by his name The Mengin B or Poinsard 25 hp was the first and smaller of the two. Aimed at very small, single seat sport aircraft it went into production from about 1933. Production ceased when France was invaded in 1940. Variants- Mengin B
- As below.
- Mengin B geared
- Maximum continuous {{convert|29|hp|kW|0|abbr=on|order=flip}} at 1,450 propeller rpm, take-off {{convert|32|hp|kW|0|abbr=on|order=flip}} at 1,580 propeller rpm.
ApplicationsData from Horizontally Opposed Aero Engines[ unless other source indicated] - Bessard-Millevoye Moineau
- Botali-P.A.M.A.
- Brochet MB-30[3]
- Eklund TE-1
- Gatard AG.01 Alouette (geared)
- Guilemin Sportplane (geared)
- JDM Roitelet
- Jodel D9
- Mignet HM.8
- Mignet HM.14
- Nippi NH-1 Hibari
- Piel CP-10 Pinocchio
- SFCA Taupin
- Avia 50-MP
Specifications{{pistonspecs|
|ref=Horizontally Opposed Aero Engines
|type=Air-cooled flat-twin
|bore={{convert|94|mm|in|2|abbr=on}}
|stroke={{convert|90|mm|in|2|abbr=on}}
|displacement={{convert|1.249|L|cuin|2|abbr=on}}
|length=
|diameter=
|width=
|height=
|weight={{convert|77|lb|kg|0|abbr=on|order=flip}}
|valvetrain=
|supercharger=
|turbocharger=
|fuelsystem=Single or double magneto choice
|fueltype=
|oilsystem=
|coolingsystem=Air
|power=Maximum continuous {{convert|25|hp|kW|0|abbr=on|order=flip}} at 2,280 rpm, take-off {{convert|28|hp|kW|0|abbr=on|order=flip}} at 2,500 rpm
|specpower=
|compression=
|fuelcon=
|specfuelcon=
|oilcon=
|power/weight=
|designer=
|reduction_gear=
|general_other=
|components_other=
|performance_other=
}}References1. ^1 {{cite web |url=http://www.aviafrance.com/brochet-mb-30-aviation-france-9988.htm|title=Brochet MB-30 |author= |date= |work= |publisher= |accessdate=25 January 2015}}
}} 2 : Boxer engines|Aircraft piston engines 1930–1939 |