• Hughes 269 LTS

    From gbaylee@gmail.com@21:1/5 to All on Fri Apr 8 16:45:38 2016
    On Monday, August 11, 2008 at 9:56:07 AM UTC-4, Stuart & Kathryn Fields wrote:
    "gk" <glkd@cox.net> wrote in message news:kdwnk.10915$Bt6.1685@newsfe04.iad...


    Brien wrote:
    What are the advantages of the LTS over the HTS.
    Quieter and better tail rotor authority. Also, HTS parts are really
    scarce and not produced anymore.

    Gary

    Where can I find a description of what makes one an LTS and what makes one
    an HTS? I have never heard of this distinction before.

    Stu

    The Tail Rotor Authority is the biggest issue...But I still have a HTS that is flying fine...in 2016. Don't get yourself in places where you will run out of pedal and you are fine..

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  • From gbaylee@gmail.com@21:1/5 to All on Sun Sep 11 06:29:48 2016
    On Wednesday, August 13, 2008 at 10:06:53 PM UTC-4, gk wrote:
    Stu,

    The HTS (High Tip Speed) assembly has a gearbox with a circular boss as
    part of the casting. This boss fit into the tail boom and was secured
    with 10-32 capscrews that went through the tail boom radially. The
    blades were quite small compared to the LTS hardware. The army
    complained about a lack of tail rotor authority when using the 269A
    (TH55) for training. The solution was an adapter that replaced the HTS gearbox and provided a mounting surface that was perpendicular to the
    tail boom centerline. They then took the tail rotor gearbox and blade assembly from the 369 series (500C) and along with a new tail rotor driveshaft and control rod and now had a tail rotor that rotated slower
    and had more effect. There were several other parts (such as the rear airfoil) that were also replaced. This was all available as a kit which
    was field installable.

    I flew my 269A (with maybe the only surviving HTS assembly) for 500 plus hours without any problems. The HTS assembly had a distinct buzzing
    sound that could be hear early in the heli's approach. I don't recall
    the difference in the tail rotor speed (the tail rotor gearbox had a different ratio), but it was significant.

    I have pictures of the HTS assembly on my ship if they would be of any
    help. The Hughes manuals (maintenance and parts) still covered both
    setups even though parts weren't available from Hughes (or later
    Schweizer). If you need any more info, just let me know.

    Gary

    Stuart & Kathryn Fields wrote:
    "gk" <glkd@cox.net> wrote in message news:kdwnk.10915$Bt6.1685@newsfe04.iad...

    Brien wrote:
    What are the advantages of the LTS over the HTS.
    Quieter and better tail rotor authority. Also, HTS parts are really
    scarce and not produced anymore.

    Gary

    Where can I find a description of what makes one an LTS and what makes one an HTS? I have never heard of this distinction before.

    Stu



    Gary....can you contact me at GBaylee@gmail.com I really need your knowledge base

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