Randy Powell wrote:

> What  would be the pro and con of extending the center section spars and
reducing the outer wing panel length an equal amount on a Kr2s.  This would
give room for larger wing tanks in the stub area and added width for flaps.

Lengthening the center spars would REDUCE the load on the WAFs, not increase
it, because now they are carrying less load, as there's less wing out past
there.  Think of the load they'd carry if you put the WAFs out a foot from
the tip, and it becomes obvious.  The center spar is stronger than the outer
spars, so there's another reason it won't hurt anything.

The downside would be getting it on a trailer and down the road, as the
airplane would be wider, but that's probably not a biggie, since highway
transport is a pretty rare occurance with a KR.  I think the main spars are
84" long right now, so if you went to 94" (which would leave a little room
for WAFs to protrude) you'd still be "street legal", but I wouldn't let that
dictate the length.

It should also be mentioned that carrying fuel in the outer wings is
practically a free lunch for the WAFs, unless you tend to land really hard.
But I like mine in the stub wings, so there are no fuel connections when
disconnecting the wings, but then that's not something you'd have to do very
often either.

Mark Langford, Huntsville, Alabama
see KR2S project N56ML at http://home.hiwaay.net/~langford
email to N56ML "at" hiwaay.net
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