Verner VM 133
Czech aircraft engine
From Wikipedia, the free encyclopedia
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.[1][2][3]
| Verner VM 133 | |
|---|---|
| Verner VM 133MK | |
| Type | Aircraft engine |
| National origin | Czech Republic |
| Manufacturer | Verner Motor |
| Major applications | |
| Manufactured | up until about 2013 |
| Developed from | Verner 1400 |
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.[1][2][3][4]
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.[5]
Variants
- VM 133M
- Original model
- VM 133MK
- Improved model
Applications
Specifications (VM133 MK)
Data from Technical Data VM133 MK[2]
General characteristics
- Type: Twin-cylinder, horizontally opposed, four-stroke aircraft engine
- Bore: 97 mm (3.82 in)
- Stroke: 90 mm (3.54 in)
- Displacement: 1,329 cc (81.1 cu in)
- Length: 617 mm (24.29 in)
- Width: 736 mm (28.98 in)
- Height: 456 mm (17.95 in)
- Dry weight: 61 kg (134 lb)
Components
- Fuel system: Two Bing 64 carburetors pressurized by a Pierburg 7.20971.63 fuel pump
- Fuel type: 95 octane auto fuel or 100LL Avgas
- Oil system: oil class SH/SG 5
- Cooling system: air-cooled
- Reduction gear: 2:1 or 2.29:1 oil-filled gear box
Performance
- Power output: 63 kW (84 hp) at 5500 rpm for three minutes, 51 kW (68 hp) at 4200 rpm continuous
- Compression ratio: 9.8:1
- Fuel consumption: 11 litres (2.4 imp gal; 2.9 US gal) per hour at cruise settings
- Power-to-weight ratio: 1.03 kW/kg