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LSA empty weights

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  • LSA empty weights

    I’m looking at building the LSA, what empty weights are people building to? Please give pertinent equipment. I didn’t see a concise list anywhere.

    Thanks,

    Dan

  • #2
    Good Question. I've just started on an LSA. If i remember correctly Mark's LSA came in at just over 800lbs empty with an electrical system, O200 and starter.

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    • #3
      Quoting a post of mine from a few years ago when I finished my scratch build:

      "Empty weight is 798.

      I calculated the various "arms" by putting known weights in the various locations. The calculated numbers all came out to be within an inch or so of the prototype numbers in the "book" except my pilot location is about three inches further back then Bob's. However, that is well within the seat adjustment range and given I am a bit over six feet probably more representative of how my plane will be loaded.

      The CG range looks pretty workable though could afford to be a little further forward. I expect it would be perfect if it had a metal prop instead of the Catto or had a charging system in addition to my "total loss" battery plus starter system.

      I think if I did it again I would skip the skylight as there is probably 5 to 10 lbs there.

      I would likely still do doors on both sides but cover them in aluminum instead of plexi for another 5 lbs savings or so.

      I used Cleveland wheels with 1.5" axles that I had on hand and there is probably a bit of weight that would be saved with the Matco's

      Not much else I can think of to remove weight except Oratex instead of Stits and an RV tail wheel instead of the BH wheel I built."

      After this, the skylight was discussed and while I would drop it for the type of flying I would do, others want it for canyon/mountain work.

      I would keep the lower doors skinned in plexi even though it probably adds a few pounds. I likely would drop the left side door as I haven't really used it since completion.
      Last edited by BTAZ; 11-23-2020, 02:07 PM.

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