Fred.
Speaking of Cherokee's... A couple years ago there was a good article
(Sport Aviation again?) about a fellow who had done considerable
experimentation with vortex generators and other such devices on his
Cherokee. He clearly has the fastest 150 around. Again, I don't have the
article in front of me, but it seems to me he was getting around 30 mph
more than I used to get in my old PA28-150. He was getting some truly
amazing numbers for that old Hershey Bar wing bird. I really loved my old
Cherokee, but I likened it to driving an old Ford Fairlane around. No
style, or speed, but comfortable and solid as a rock.
Jeff
Fred Fillinger wrote:
> > Try it on what?
> > It only really works on poorly proportioned (i.e. stubby) sections.
> >
> > Duncan McF.
>
> Perhaps indeed so, and also exactly where on the wing? A laminar flow
> airfoil might require much experimentation. The dimpletape people say
> place it at max wing thickness, which theory would support for your
> father's fat-wing Cherokee. However, that's about 38% of chord for
> the Europa, and Don Dykins says the Europa wing is likely laminar flow
> to around 50% of chord. Placed too far fwd into laminar flow, the
> effect could easily be zero to adverse. That's a lot chord positions
> to play with, so is this tape easily removed and reapplied?
>
> Best,
> Fred F.
> N3EU
> _____
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