Product Number: 20-STOL-25C
Complete High Lift Sportsman STOL leading edge kit with WING TIPS, for Cessna singles...
This is the best performance mod you can do to a single engine Cessna.
FAA-PMA-STC : STC # SA4302WE, STC # SA4303WE
Kit comes complete with installation instructions, STC paperwork, all hardware and parts, landing light lens and standard small droop wing tips....
The kit also has aileron gap seals, and recommends not using flap gap seals with this kit.
Skins are 2424-T3 alcad aluminum, .025 thickness
Skins are installed with Cherry max pull rivets, 91-62
Install time: estimated as 50 labor hours for 1st time installers and 25 for the experienced.
The Sportsman STOL modification itself was originated by Marvin Davis, a lockheed Skunkworks engineer who developed it while studying NASA technical notes pertaining to airfoil stall and spin characteristics from NASA's Langley Research Center. After finalizing his findings through wind tunnel tests, Marvin obtained the rights from Lockheed. Sadly, Mr. Davis passed away before realizing the full potential of this discovery. Enter Marshall Quackenbush. Acquiring the rights from Mr. Davis' widow, Marshall pushed forward with the work to develop on of general aviation's greatest discoveries. Since the kit's inception, it has been installed, sometimes replacing other STOL modifications, on over 3000 airplanes, with customers including the Alaska Fish and Game Department, The Royal Canadian Mounted Police, various law enforcement agencies worldwide, and owners in Australia, Canada, New Zealand, South Africa, South America, England, Mexico, as well as all over the United States.
The Sportsman STOL wing cuff is a state of the art modification designed to increase light plane utility and safety by increasing the wings efficiency and resistance to stalls and spins. The kit includes shallow drooped wing tips that extend approximately two inches forward of the original wing. The Sportsman STOL is not just a lip on the bottom, but is a re-engineered airfoil. The aim of the Sportsman STOL modification is to improve aerodynamics. The Sportsman STOL achieves this by streamlining the impingement point for smoother airflow and less drag. The second benefit is that the airflow remains smooth to a lower airspeed (increased laminar flow) and the stall curve is considerably extended. The Sportsman STOL increases the wing area by about four square feet.
What will it do for You?
Eligibility List: Cessna single
STC # SA4302WE
150A, 150B, 150C, 150D, 150E, 150F, 150G, 150H, 150J, 150K, 150L, 150M, A150M
STC # SA2256WE
172, 172A, 172L, 172M, N, P,Q, R172K
180, 180A-H, 180J, 180K
206, P206, P206A-E, U206, U206A-G, TP206A-E, TU206A-G, 206H - T206H
STC # SA4303WE
182, 182A, 182B, 182D,182C, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P, 182Q, 182R, 182S, 182T,
R182, T182, T182T, TR182
***Short Delay for manufacturing***
Approx. 10 to 14 day manufacturing delay before shipping.
NOTE: Call for shipping details, $300.00 fixed shipping price is a minimum general cost.
You may be contacted for additional shipping to certain areas.
ART Extension kits, add an additional $50.00 shipping
Overseas shipping: You must contact us for a shipping quote
Shipping Box Sizes:
Sportsman kit ships in two boxes.
Pre 1974 models, Box 1, 94"x10"x8"
Box 2, 49"x13"x13"
Late models 1975 and newer.
Box 1, 112"x10"x8"
Box 2, 49"x13"x13"
SPECIAL NOTE: Aircraft with ART wing tip extensions can be accomadated with a Bushton cuff kit.
Add an additonal $175.00 for the ART Extension kit, $50.00 shipping