Re: Light-Sport Aircraft Yahoo group Re: NEW Composite fully equipped LSA trainer from Pipistrel for just

There's actually several planes with that issue right now. SportStar
and SeaRey solved the problem with VGs. FK is another than comes to mind
with a lower gross weight that I am guessing is a stall speed issue. The
problem as I understand it that the LSA stall speed requirement is lower
than the microlight stall speed and of course the greater the weight of
the plane the greater the stall speed. Hence upping the gross weight
ups the listed stall speed and can through you out of the LSA definition.

Helen

On 11/14/2011 11:15 AM, Michael Huckle wrote:
>
>> Posted by: "Michael Coates" mcoates@mcp.com.au
>>
>> Hello Helen, when the aircraft has FULL Fuel there is a leftover
>> payload for pilot and passenger of 460 pounds, you have got to be a
>> pretty fat instructor if this is a concern.
>> Also its important to note that the aircraft is designed for the full
>> 600 Kg (1320 lbs) payload limit for the LSA category and is registered
>> at this maximum takeoff weight in a large number of countries that
>> accept the LSA category but do not have the restrictions that are in
>> place in the USA market.
>> The maximum takeoff weight of the aircraft is reduced slightly in the US
>> market so it can meet the stall requirements with zero flap. So the
>> aircraft is capable of another 100 pounds payload in other markets
>> around the world but it is restricted in the USA. You have got to agree
>> with me however that 460 pounds payload is more than adequate when the
>> aircraft is carrying full fuel. I would be interested in seeing
>> comparisons with other aircraft because I know they don't carry any
>> more.....
> Yes, agreed, 460 lbs plus full fuel seems more than adequate to me.
>
> I was a bit surprised that they needed to reduce the gross by 100 lbs
> in order to fix a stall speed just 1 mph too high?....
> (but I'm no expert on that calculation)
> (and if it was me I'd have wanted to fix it by removing reflex in flaps)
>
> As someone suggested it would be nice if the pilot/passenger-payloads
> could be shown with some kind of -standard- amount of fuel so that
> the "large tank" airplanes don't appear to be at a disadvantage.
> Of course that would mean "agreeing on something"... the standard,
> and that's not likely to happen. ;-)
> eg; I'd suggest "fuel for 1.5 hours while doing 70 mph".
> (one hour training plus reserve)
>
>
> Mike
>
>
> .
>
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>

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