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Another stupid helicopter question...

Discussion in 'The Okie Corral' started by HollowHead, Oct 29, 2013.

  1. HollowHead

    HollowHead Firm member

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    Where the buffalo roam
    How hard would it be to land on an elevated platform high enough and small enough to not offer ground effect? HH
     
  2. Atlas

    Atlas transmogrifier

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    <pointless treadmill comment HERE>
     

  3. nismochasse

    nismochasse

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    The helicopter will require more power to hover, that's about it. Assuming the pilot can hover, it shouldn't be hard (not accounting for wind effects).

    I'm not a pilot or subject matter expert though.

    Sent from my SAMSUNG-SGH-I747 using Ohub Campfire mobile app
     
  4. AK_Stick

    AK_Stick AAAMAD

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    Depends more upon the other circumstances than the size of the LZ


    Total altitude, atmo conditions, acft weight and power available etc.

    A "pinnacle" landing, is not terribly difficult in and of itself, it's generally the location and specifics that make it more or less challenging.

    [​IMG]

    This was a rather challenging day, as even clear, the wind down the valley, and total altitude, plus configuration of my helo, was not a good mix. But it pretty much fits your ?, as my main landing gear and tail barely fit at the same time, and my pilot was sticking over the vert drop off.
     
    Last edited: Oct 29, 2013
  5. Bushflyr

    Bushflyr ʇno uıƃuɐɥ ʇsnɾ Millennium Member

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    Nothing to add. I just like these pictures.

    [​IMG]

    [​IMG]
     
  6. AirCav

    AirCav Out Front! CLM

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    The act of landing on your platform wouldn't be very difficult as long as there was sufficient power to allow for an OGE hover. (depends on weight and density altitude) Sea level-easy, Mt Everest-not likely.

    Ground effect improves hover performance up to about "one rotor diameter" so your platform would only need to be 30'-40' high for most light/medium helicopters to lose any benefit from ground effect.

    In many helicopters, the pilot cannot actually see the landing gear so the most challenging aspect would be to precisely place the landing gear on a platform small enough to be "shielded" from downwash by the fuselage. Without falling off. Still, any competent helicopter pilot should be capable of that.
     
  7. MadMonkey

    MadMonkey Spershul Furces

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    Fixed :whistling:
     
  8. Atlas

    Atlas transmogrifier

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    :rofl: :rofl: :rofl:
     
  9. GVFlyer

    GVFlyer Senior Member

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    Me, too.

    I had drinks with some MH-47E pilots on Saturday night - very high speed, very competent guys.
     
  10. HollowHead

    HollowHead Firm member

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    Where the buffalo roam
    Thanks, gents. Could you also recover from ground resonance without ground effect? IIRC, there was a scene in either the opening or closing of "MacGyver" where an Alouette goes into resonance on a rooftop but the pilot recovers. HH
     
  11. AK_Stick

    AK_Stick AAAMAD

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    Yes, ground resonance, is about vibration from being on the ground, with skids. It has nothing to do with ground effect.