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  2. Ducted fan - Wikipedia

    en.wikipedia.org/wiki/Ducted_fan

    Glow plug engines combined with ducted-fan units were the first achievable means of modeling a scaled-size jet aircraft. Despite the introduction of model-scale turbojet engines, electric-powered ducted fans remain popular on smaller, lower-cost model aircraft. Some electric-powered ducted fan airplanes can reach speeds of more than 320km/h ...

  3. Category:Ducted fan-powered aircraft - Wikipedia

    en.wikipedia.org/wiki/Category:Ducted_fan...

    Aircraft whose primary form of thrust is derived from a piston engine, rotary engine or turboshaft driving a ducted fan. Subcategories This category has the following 2 subcategories, out of 2 total.

  4. PJ-II Dreamer - Wikipedia

    en.wikipedia.org/wiki/PJ-II_Dreamer

    The Dreamer aircraft uses a special type of propulsion system called a dual ducted fan. This system gives it similar handling to a jet engine but is cheaper and less complicated to operate. Unlike propeller-driven planes, it doesn't have torque or P-factor issues, which are forces that can make the aircraft harder to control.

  5. Air Movement and Control Association - Wikipedia

    en.wikipedia.org/wiki/Air_Movement_and_Control...

    Part 4 of the Fan Application Manual, reviews the methods of making field measurements for calculating the actual performance of the fan and system. AMCA Publication 801 - Industrial Process/Power Generation Fans: Specification Guidelines provides information on testing and rating power plant fans and covers construction features and related ...

  6. Model aircraft - Wikipedia

    en.wikipedia.org/wiki/Model_aircraft

    The fans were generally powered by 2 stroke engines at high RPM. They generally had 0.40 to 0.90 cu in (6.6 to 14.7 cc) displacements, but some were as small as 0.049 cu in (0.80 cc). This fan-in-tube design has been adopted successfully for electric-powered jets while glow engine powered ducted-fan aircraft are now rare.

  7. Annular lift fan aircraft - Wikipedia

    en.wikipedia.org/wiki/Annular_lift_fan_aircraft

    The Ryan XV-5 and the F-35B use relatively smaller lift fans, either fan-in-fuselage or fan-in-wing, with very high disc loading. According to the momentum theory of the ducted fan, [ 2 ] [ 4 ] high disc loading leads to low hovering efficiency (see power vs disc loadings , JSF fan), so the F-35B can hover for only a short time, at the cost of ...

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