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Thread: New 4 stroke Engine

  1. #1
    Less than 10 posts so far! USER IS NOT AVAILABLE
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    Default New 4 stroke Engine

    AeroTwin Engine Specifications:







    General Specifications:

    • 65 HP @ 4200 RPM

    • Weight: 105 lbs

    • Dimensions (Height): 17.5"

    • Two Cylinders, In Line

    • Dry Sump (Runs in Vertical and Horizontal position)

    • Air Cooled 972cc 4 Stroke

    • Firing Angle 360

    • Bore: 101.6

    • Stroke: 60mm

    • Compression Ratio: 8.0:1

    • Manifold Pressure: 8 psi

    • Two Sparkplugs per Cylinder

    • Two Valves per Cylinder

    • Belt Driven Twin Camshafts

    • Electronic Fuel Injection and Ignition

    • Fuel Octane Requirement: 91UL

    • Gear Reduction Box: 18.5lbs (see detail below)

    • Propellar Flange: standard output flange has 75mm and 100mm bolt-circle

    pattern for mounting, an aircraft standard SAE No.2 propeller flange is also

    available as an option



    http://www.aerotwinmotors.com/pages/at_specs.htm



    http://www.airscooter.com/pages/airscooter_main.htm




  2. #2
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    Default Re: New 4 stroke Engine

    Price?



    I clicked the on-line order link, ended up at a RC helicopter site.



    Have you seen this one?





    RotaMax

    http://www.rotamax.net/650.html

    <table border="0" align="center" width="90%" cellpadding="3" cellspacing="1"><tr><td class="SmallText">Quote:</td></tr><tr><td class="quote">
    Specifications



    * Single rotor, 650cc displacement

    * 85 HP @ 7,750 RPM

    * 67 ft-lbs Torque @ 3,700 RPM

    * 106 lbs

    * (17.5"-L x 16.5"-W x 17.5"-H)

    * Gasoline carburetor (standard)*

    * Fuel injection (optional)

    * Electric starter

    * CDI Spark ignition

    * Metered oil lubrication system

    * 40 Amp generator coil (standard)

    * Specifications for battery, exhaust

    and cooling system provided

    * Metric standard design


    </td></tr></table>




  3. #3
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    Default Re: New 4 stroke Engine

    Looks interesting but a bit high end on rpm makes one wonder how long the tip seals will last what is the bhp and torque at a more respectable say 4500rpm. Also what about fuel consumption as the rotary we now use drinks fuel like a 2 stroke.

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