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JPX D-320

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JPX D-320
Type

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National origin

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Manufacturer

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The JPX D-320 and D330 are a family of French twin-cylinder, horizontally opposed, two-stroke aircraft engines.[1][2]

The engine was introduced specifically for the powered paraglider market, as part of the company's comeback efforts following going out of business in the early 1990s.[1]

Design and development

The engine has two cylinders in a horizontally-opposed configuration, with cooling fins on the cylinders. The single ignition system uses capacitor discharge ignition. Fuel is metered by a single Tillotson carburetor. Starting is only by electric start, without recoil start as an option.[1][2]

The D-320 has a redline rpm of 6600 and uses a belt reduction drive of 2.38:1. Its weight of just Script error: No such module "convert". gives the engine a high power-to-weight ratio.[1][2]

Variants

D-320
Twin-cylinder, horizontally-opposed aircraft engine introduced in the mid-1990s and currently out of production. Power output is Script error: No such module "convert". at 6600 rpm.[1][2]
D330
Twin-cylinder, horizontally-opposed aircraft engine, improved variant, currently in production. Power output is Script error: No such module "convert". at 6500 rpm.[2]

Applications

Specifications (D330)

Data from JPX[2]

General characteristics

  • Type: twin-cylinder, two-stroke engine
  • Displacement: 319 cc (19.47 cu inches)
  • Dry weight: Script error: No such module "convert". complete with standard reduction drive, carburettor, air filter, electronic ignition, starter motor and exhaust system.

Components

  • Valvetrain: 6-blade reed valve induction
  • Fuel system: Tillotson carburetor
  • Oil system: premixed 2.5% oil and fuel
  • Cooling system: air cooled

Performance

  • Power output: Script error: No such module "convert". at 6500 rpm
  • Compression ratio: 8.5:1
  • Fuel consumption: 2.5 litres to 6 litres per hour depending on load and cruising speed

See also

References

  1. 1.0 1.1 1.2 1.3 1.4 Cliche, Andre: Ultralight Aircraft Shopper's Guide 8th Edition, page G-4 Cybair Limited Publishing, 2001. ISBN 0-9680628-1-4
  2. 2.0 2.1 2.2 2.3 2.4 2.5 JPX (n.d.). "D330 Technical characteristics". Retrieved 2010-02-09.