Verner VM 133

{{Short description|Czech aircraft engine}}

{{Use dmy dates|date=December 2022}}

{{Use British English|date=December 2022}}

{{Infobox Aircraft Begin

| name=Verner VM 133

| image=File:VM 133MK.png

| caption=Verner VM 133MK

}}{{Infobox Aircraft Engine

|type=Aircraft engine

|manufacturer=Verner Motor

|designer=

|national origin=Czech Republic

|first run=

|major applications=Airflow Twinbee
Avid Catalina
SlipStream Genesis

|produced= up until about 2013

|number built=

|developed from=Verner 1400

|variants with their own articles=

}}

The Verner VM 133 is a family of Czech two cylinder, horizontally opposed, four stroke aircraft engines, designed and built by Verner Motor of Šumperk.Bayerl, Robby; Martin Berkemeier; et al: World Directory of Leisure Aviation 2011-12, page 22. WDLA UK, Lancaster UK, 2011. {{ISSN|1368-485X}}{{cite web|url =http://www.vernermotor.com/old/indexdd6f.html?sec=4|title =TECHNICAL DATA VM133 MK|access-date = 24 April 2012|last = Verner Motor|date = n.d.}}{{cite web|url = http://www.centralfloridaflyers.com/verner133m.htm|title = VM 133M|access-date = 24 April 2012|last = Central Florida Flyers|date = n.d.}}

Design and development

The 133M is based on the earlier Verner 1400 and uses a 12 volt 1000W electric starter and has a 12 volt 160W generator. It runs on 95 octane automobile fuel or 100LL Avgas. The recommended time between overhauls is 1000 hours.{{cite web|url=http://www.vernermotor.com/indexc192.html?sec=3|archive-url=https://web.archive.org/web/20130826080059/http://www.vernermotor.com/indexc192.html?sec=3|title=Verner Motor, Czech Republic - ultralight - aircraft - LSA|author=Zdeněk Klučka|archive-date=26 August 2013|work=vernermotor.com|access-date=30 June 2015}}

The engine was still advertised for sale on the company website in 2013, but by 2015 was no longer listed as available and it is likely that production has ended.{{cite web|url=https://web.archive.org/web/*/www.vernermotor.com/index.html |title=Verner Motor |website=Internet Archive Wayback Machine |access-date=30 June 2015}}

Variants

;VM 133M

:Original model

;VM 133MK

:Improved model

Applications

Specifications (VM133 MK)

{{pistonspecs

|ref= Technical Data VM133 MK

|type=Twin-cylinder, horizontally opposed, four-stroke aircraft engine

|bore={{convert|97|mm|in|2|abbr=on}}

|stroke={{convert|90|mm|in|2|abbr=on}}

|displacement={{convert|1329|cc|cuin|1|abbr=on}}

|length={{convert|617|mm|in|2|abbr=on}}

|diameter=

|width={{convert|736|mm|in|2|abbr=on}}

|height={{convert|456|mm|in|2|abbr=on}}

|weight={{convert|61|kg|lb|0|abbr=on}}

|valvetrain=

|supercharger=

|turbocharger=

|fuelsystem=Two Bing 64 carburetors pressurized by a Pierburg 7.20971.63 fuel pump

|fueltype=95 octane auto fuel or 100LL Avgas

|oilsystem=oil class SH/SG 5

|coolingsystem=air-cooled

|power={{convert|63|kW|hp|0|abbr=on}} at 5500 rpm for three minutes, {{convert|51|kW|hp|0|abbr=on}} at 4200 rpm continuous

|specpower=

|compression=9.8:1

|fuelcon={{convert|11|L}} per hour at cruise settings

|specfuelcon=

|oilcon=

|power/weight=1.03 kW/kg

|designer=

|reduction_gear=2:1 or 2.29:1 oil-filled gear box

|general_other=

|components_other=

|performance_other=

}}

See also

{{aircontent

|see also=*Verner JCV 360

|related=

|similar aircraft=

|lists= *List of aircraft engines

}}

References

{{Reflist}}