[f-AA] ###Experimental LSA###

[Kyle]

Hmmmm, anybody up for an extremely light RV-4, with an 0-235?? Don't get me thinking, I can't afford to! Kyle
  ----- Original Message ----- 
  From: Todd Pattist 
  To: aeronca at westmont.edu 
  Sent: Thursday, November 09, 2006 7:44 PM
  Subject: Re: [f-AA] ###Experimental LSA###


  I know Vne can be higher than 138 (for non-gliders), but if you have installed an engine large enough so that the aircraft could go faster than 138 in level cruise with a Vne above 138, it can't be an LSA.  However, if you design the aircraft with a higher than normal safety factor by limiting Vne to 138, then it will meet the LSA definition even if it could fly faster than that by violating the Vne limit. Take the glider LSA as an example.  It actually is limited to Vne of 138.  Now you can certainly go faster than that by diving straight down, but it's not legal to do so and it's still a light sport aircraft even if it's identical to another glider with a higher Vne that is not an LSA.  It's the same with gross weight.  That's set by the airworthiness certification, not by the actual capability of the aircraft.  Two identical homebuilt aircraft may be certified with different max gross weights, and one might be LSA legal while the other is not.  

  cgalley wrote: 
    The VNE of a SLA can be much higher than 138.  It is 138 in level flight cruise.
      ----- Original Message ----- 
      From: Todd Pattist 
      To: aeronca at westmont.edu 
      Sent: Thursday, November 09, 2006 2:13 PM
      Subject: Re: [f-AA] ###Experimental LSA###


      John Baker wrote: 
        The terminology of the Light Sport Aircraft/Sport Pilot rule must be read and used with precision.  

      I agree, and it's very easy to get confused between the definition of what the SP can fly and the registration category of the aircraft.


        I hope you didn't confuse some by your statement that an RV-8 could be flown by a Sport Pilot if it was constructed to meet the limits for an LSA.   Of course, the key is the "IF" in the statement.  I don't think I'd want to fly an RV-8 that was constructed to meet the LSA limits. J

      I suppose I should have been less outrageous in my example :-)  You are right, the key is the "IF"  Some of the limits are easy to build around - put in only two seats and non-retractable gear.  Some of the limits can be complied with by definition at the time of certification - placing a limitation of 1320 max gross weight and 138 Vne on a homebuilt defines those numbers even if an engineering analysis shows that the aircraft could exceed them.  My point was just that it's not the name of the aircraft design, or the registration category that defines whether it's an LSA.  It's the LSA limits that define it.



  

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