These are plans for turbine engines of all sorts of configurations, mostly appropriate for models.
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JT-66 Microturbine: A German designed model jet engine. The plans are in Metric.
10 Pgs 256 kB
U22 Turbojet: An older, but still effective turbojet for model airplanes. Simple to make from the well detailed plans.
7 Pgs 791 kB
Wren MW54 Turbojet: The British designed Wrens are a boon for modelers. They use compressor wheels from automotive turbochargers for lower cost and more efficiency.
82 Pgs 12.3 MB
Wren MW54 Turboprop: The Wren Turbo Prop engine uses the same guts as the MW54 turbojet, but with a geared prop drive.