pif_sonic wrote:And over the weekend we have removed the Horton kit and are now installing the X wing and Sportsman...
Just curious, why would you remove the Horton STOL Kit and install a different type. Is there really a noticeable difference?? Is there 10-15 knots difference in stall speed or is it only 1-3 knots??? Seems like a lot of time and money for such a small result. Just asking, maybe something I do not know??
BTW, very nice airplane, can't wait to see it in the air. Not trying to be negative, just wondering.
I must admit, the Horton was and is a very good STOL kit. I too am very interested in seeing the true outcome. I flown with a lot of cub guys (many we know on here) and my 180 ALMOST kept up.
From a lot of research (I can tell you I have not flown a Sportsman) all the facts show that its the very best STOl kit out there. If I can shave 3-5 knts off on landing, that can be significant on roll out. Same goes for the take off.
I like what Sparky writes here:
Landing Speed, Landing Distance:
A 10 percent increase in touchdown speed equals a 21 percent increase in landing distance.
Here is the entire read. Its pretty good. http://www.mountainflying.com/Pages/mountain-flying/rule_of_thumb.html
At 6000' my plane could honestly stop in about 200' or less very easily. For me I am looking for the ultimate combination for the 180. If 2-3 or 5 plus kts is taken off, thats what I am after.
The leadind edge on a Sportmans is also significantly different. The Sportsman cuff is much more aggressive, and lowers the stall speed significantly. The Bush or Horton kits have a much smaller cuff, and less performance increase.
Check this out:
Cessna 180 Cessna 180
Standard (mph) Modified (mph)
Top Speed @ Sea Level 160 160
Cruise 75% @ 6500ft 163 163
Sugg. Gliding Speed 75 70
Vx Climb Speed 63 53(w/30° flaps)
Vy Climb Speed 90 80
Sea Level Climb 1150fpm 1250fpm
Take-Off Ground Roll (30º flaps) 382 ft 300 ft
- Clear 50' obstacle 995 ft 650 ft
Landing Roll Out 372 ft 300 ft
- Clear 50' (40 deg. flaps) 1200 ft 650 ft
This is a real good diagram for comparison. After removing the Horton, I can support these diagrams now.http://www.steneaviation.com/sportsman_stol_comparison.asp?menuID=7~7
Ultimatly the Sportsman with the Wing X combination gives, you get a significant amount of wing area. I spend a lot of time on the Skywagon email list asking questions to those with thousands of hours and have flown both. All replies come back and support the Sportsman. I guess my long story short is, I will tell you more once I fly her because all I have now is hear say and others supporting it.
Very good question for certain.
The other reason...when I put the bird on her nose with my tail up taxi pracitce, I dinged up the right wing slightly. So, it was repair the Horton or change it up. I have wanted the Wing X for sometime (for the uefull load increase). The Wing X and Sportsman seems to me, the ultimate combo. Who knows, I may end up with the Horton down the road again but I am betting this set up is going to be real good with the new big engine.
I am now questioning whether I should put the micro VG's back on. Thinking I am going to fly her without them at first and see what kind of aurthority I get at a real high AOA and very slow speed. Betting I am going to want them back on. When under the horizontal you help the Aileron authortiy big time with the Horton. Hearing the same about the Sportsman.
We are getting close
If it looks smooth, it might be. If it looks rough, it is...www.bigtirepilot.com ...www.alaskaheliski.com