Ducted Fan Design: Volume 1 - Propulsion Physics and Design of Fans and Long-Chord Ducts PDF Download
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Author: Marc de Piolenc
Publisher: Lulu.com
ISBN: 0359104908
Category :
Languages : en
Pages : 182
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Book Description
Author: Marc de Piolenc
Publisher: Lulu.com
ISBN: 0359104908
Category :
Languages : en
Pages : 182
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Book Description
Author: David James
Publisher: Fountain PressLtd
ISBN: 9780852429778
Category : Crafts & Hobbies
Languages : en
Pages : 175
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Book Description
"Ducted fans represent the fastest growing and most exciting facet of aeromodelling, and there is now a tremendous growth of interest amongst fliers, as well as designers and builders. Ducted Fans for Model Jets is a thorough reference book on the technology, and examines the fan unit itself, suitable engines to power the fan, special airframe designs, commercially available engines and fans, and important experimental data on fan and aircraft performance."--Back cover.
Author: R. W. Hovey
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 102
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Book Description
Author: Kenneth W. Mort
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 38
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Book Description
Power, free-stream velocity, and duct angle of attack were varied at several wing angles of attack to define the aerodynamic characteristics of the ducted fan, wing, and of the ducted fan wing together. At large duct angles of attack, the inside of the upstream duct lip stalled causing a rapid change in the duct pitching moments and an accompanying increase in the power required. At low horizontal velocities, this lip stall would probably limit the rate of descent of a vehicle with a wing-tip-mounted ducted fan. During low-speed, level, unaccelerated flight (30 to 80 knots) it appeared that a vehicle, with a configuration similar to that examined, would require less power if it were supported by a wing and ducted fans than if it were supported only by ducted fans. (Author).
Author: Paul F. Yaggy
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 20
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Book Description
Author: Michael D. Falarski
Publisher:
ISBN:
Category : Short take-off and landing aircraft
Languages : en
Pages : 60
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Book Description
The longitudinal aerodynamic characteristics of a semispan wing dellected-slipstream configuration with a double-slotted flap and and auxiliary wing were determined. The model was powered by two low-pressure-ratio ducted fans. A comparison of static test results with results obtained from various propeller-driven configurations indicates that the turning effectiveness of fan-powered deflected-slipstream configurations can be correlated with propeller-powered configurations with the same flap-chord to slipstream-diameter ratio. The turning effectiveness of the auxiliary wing was essentially the same as would be produced by a conventional slotted flap system with the same flap-chord to slipstream-diameter ratio. The auxiliary wing reduced the thrust required at low speeds as would be expected due to the increase in lifting surface area.
Author: Paul F. Yaggy
Publisher:
ISBN:
Category : Airplanes
Languages : en
Pages : 36
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Book Description
Author: Frank Fanelli
Publisher: Motorbooks
ISBN: 9780879382797
Category : Crafts & Hobbies
Languages : en
Pages : 176
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Book Description
Author: Hugh McGinnis Reynolds
Publisher:
ISBN:
Category :
Languages : en
Pages : 132
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Book Description
Author: Lysle P. Parlett
Publisher:
ISBN:
Category : Flying-machines
Languages : en
Pages : 38
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Book Description
Three investigations, all related to the stability and control characteristics of ducted-fan aerial vehicles, have been performed on simple, lightly loaded, ducted fan models ...
