ASW-24

My aerodynamic interest is piqued.Â* As small as winglets are with
respect to the wings, can you notice or measure a performance difference
between the three different types of winglets mentioned in this thread?

On 3/9/2018 5:30 PM, Jonathan St. Cloud wrote:
As I understand it, there are three different sets of winglets for the ASW-24. I had the Nixon ones and liked them. I think there is a Mark Maughmer designed winglet and also a factory winglet.

One of Rex's rentals has the Maughmer set and the other has one of the others.


On Wednesday, May 25, 2005 at 4:54:34 PM UTC-7, Lee Rusconi wrote:
I have an opportunity to buy a 1988 ASW-24 which is
in beautiful condition, good electronics and great
trailer. The glider is equipped with M&H winglets.
The asking price is $45,000 US. I would appreciate
any feedback regarding the winglets and/or the price.

Thanks

--
Dan, 5J

At 15:36 10 March 2018, Dan Marotta wrote:
My aerodynamic interest is piqued.Â* As small as winglets are with
respect to the wings, can you notice or measure a performance
difference
between the three different types of winglets mentioned in this
thread?

On 3/9/2018 5:30 PM, Jonathan St. Cloud wrote:
As I understand it, there are three different sets of winglets for
the
ASW-24. I had the Nixon ones and liked them. I think there is a
Mark
Maughmer designed winglet and also a factory winglet.

One of Rex's rentals has the Maughmer set and the other has
one of the
others.


On Wednesday, May 25, 2005 at 4:54:34 PM UTC-7, Lee Rusconi
wrote:
I have an opportunity to buy a 1988 ASW-24 which is
in beautiful condition, good electronics and great
trailer. The glider is equipped with M&H winglets.
The asking price is $45,000 US. I would appreciate
any feedback regarding the winglets and/or the price.

Thanks
Dan, 5J


Yes. The factory winglets help noticeably with slow speed handling,
especially climbing in bumpy lift. They do hinder at the higher
speeds though. The Maughmer winglets provide the better climb
performance while not hindering the higher speed glide
performance. Personal observation experience (not scientifically
measured) from having 2 ASW-24's over a period of 10 years.

RO

Yes.
Chip, Hank and I were at a contest in Elmira many years ago. Chip was not convinced about winglets for the -24 yet.
We had an off day, so testing insued.
Chip flew his -24 with an early "Nixon slip on winglet" (no wing cutting needed), I flew Hanks -24 with an early Nixon winglet that required cutting the wing and Hank flew his -20 chatting and watching from behind so he could see.

We did straight runs at different speeds to check glide as well as thermaling with Chip and I alternating who led.
Minor gains on the later winglets vs. the slip ons, both were better than no winglets.
The big difference was in, "Yank and bank rough thermals". I could fairly consistently turn inside Chip in a hot spot and get above him.

So yes, stock vs. Nixon slip on or cut the wing was better with a winglet. Later "cut the wing" Nixon winglets were even better all around.
Not sure if they were tested against other brand winglets, likely, but I don't remember.

AFAIK, Chip may still even have those slip on winglets........

I recall that day very well, Charlie. I had been uncertain about winglets only until KS outclimbed me in a survival thermal at Littlefield with early Maughmer winglets when my ship was new. Once I started flying with UH's "slip on" winglets a year later, there was no going back. I could outclimb non-winglet 24s (and many other types) but the big difference was better low-speed handling.

My impression was that these early UH tips were better than the factory's. On more than one occasion, I was able to climb away from 24s with the factory winglets in weak thermals where I was pretty sure wing loading was not a factor.

It's true that on that day, Charlie was able to climb through me pretty convincingly with a later version of UH's tips. But the cross-over point in glide on that early developmental design was a little too low for me (75-80 kts?).

However, UH continued to refine his design and the final version retained the superior climb with no perceivable loss at the high-speed end. That's when I made the switch. I've been flying with them for 15 years and consider them essential. They're also Schleicher approved, now.

Chip Bearden