Unique world-wide with Gawn blade profile, the Variprop GP delivers more energy efficiency with smooth and extraordinary thrust.
Bremerhaven, July 2019. SPW GmbH announces the introduction of their new Variprop Grand Performance (GP), setting new benchmarks in the development of automatic feathering propellers. Starting in September, the successful SPW-series Variprop will be predominantly available as the highly effective GP model.
SPW is the only manufacturer of feathering propellers with the Gawn blade profile (aero foil shaped blade). The Gawn blade profile has proven to be a highly reliable technology in fixed pitch propellers and in rudder systems for commercial shipping. The Gawn profile is more efficient and produces no vibration when motoring and very low drag under sail. The blade grinding is done with the latest CAD and robotics technology to achieve the Gawn shape.
In addition, SPW’s innovative design of the Variprop GP has achieved up to 10 percent reduction in fuel consumption while also delivering high thrust. Less fuel consumption equals less CO2-emissions and extended cruising range. That’s climate-friendly!
Precision engineering is behind the patented shock absorbing multidisc brake (Soft StopTM) in the hub, which greatly reduces blade impact loads. As with all SPW feathering propellers, the Variprop GP is made of Nibral, the extremely high strength durable material which ensures wear-resistant life of the contact surfaces, blades and hub, saving costly repairs. In the smaller sized propellers, stainless steel industrial gears are integrated into some of the GP models.
Variprop GP will be available in Fall 2019 as a 2-, 3- and 4-blade-version in models DF-80 and DF-107. Variprop GP is perfectly suitable for sailing yachts with up to 63 KW/85 HP.
In January 2020, the model range DF-112 will be released.
The Blue Water model, type DF-140, as well as the Variprop XLS series, will still be available in the well-known classic design.
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