JPX PUL 425

JPX PUL 425
Two JPX PUL 425s mounted on a Lazair 2
Type Two-cylinder two-stroke engine
National origin France
Manufacturer JPX
Produced until the early 1990s

The JPX PUL 425, also called simply the JPX 425, is a French twin-cylinder, horizontally opposed, two-stroke aircraft engine.[1]

The engine was produced only until the company went out of business in the early 1990s. The company was re-formed but the engine remains out of production and unsupported for parts.[1]

Contents

Design and development

The engine has two cylinders in a horizontally-opposed configuration, with cooling fins on the cylinders. The single ignition system uses a coil and points. Fuel is metered by a single Tillotson butterfly-type carburetor. Starting is by a recoil starter system with electric start as an option.[1]

The 425 has a redline rpm of 4600 and does not use a reduction drive. Its weight of just 38 lb (17 kg) gives the engine a high power-to-weight ratio.[1]

Applications

Specifications (425)

Data from Cliche[1]

General characteristics

Components

Performance

See also

References

  1. ^ a b c d e Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page G-4 Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4