Knots 2U, Ltd

Knots 2U, Ltd Knots 2 U Ltd is the leading manufacturer of aircraft modifications and aftermarket parts with unsurpassed quality and customer service for over 30 years.

Knots 2U was founded by Jim Bradshaw in 1981 for the purpose of adding speed and efficiency to aircraft. The first airplane modified was a Piper Twin Comanche, which went on to win the Cafe 400 Air Race in 1982. Soon other planes were added to the list including the Single Comanche, Cherokees, Arrows , Lances, Senecas, Beech Bonanzas and Barons. Our latest addition is a complete line of modificat

ions for Cessna single engine aircraft. Knots 2U now has over 70 STC'd modifications with over 30,000 kits installed worldwide! Unlike some "if it looks good, it must be good" mods out there today, Knots 2U's approach has been to use scientific data and analysis to develop the most efficient designs, while at the same time keeping prices reasonable and affordable. Knots 2U also works hard to make sure our mods are designed with future maintenance in mind. A mod that will have to be removed for maintenance or inspections is made to be removed easily and quickly. All products are manufactured by specialized contractors, or at Knots 2U's in-house fabrication and installation shop, under the guidance and constraints of our FAA-PMA (Parts Manufacture Approval). The use of space age materials such as Kevlar and Carbon Fiber are part of the Knots 2U effort to stay abreast of the times. A trade-mark of a Knots 2U mod is that they are designed to look as if they were meant to be there from the factory............not an afterthought. We are often asked the difference between our products and others on the market today. The answer is simply "look at them on an airplane....... you will see the difference"!

Come check out our Hanger Sale, find some great deals.
12/10/2025

Come check out our Hanger Sale, find some great deals.

SALE sku: 005-HS30 30' Cable and Installation Package MSRP: Was: $153.00 Now: $66.00 Add to Cart SALE sku: 005-HD60 60' Cable Installation Package MSRP: Was: $153.00 Now: $71.00 Add to Cart SALE sku: 005-HT HT Installation Kit, No Cable MSRP: Was: $22.00 Now: $5.00 Add to Cart SALE sku: 120-0039 Coc...

05/28/2023
New Product!
08/02/2022

New Product!

Determine is a Cessna flap track is beyond service limits

07/10/2022

Celebrate our aircraft of the month at EAA AirVenture this year! Come see the beautiful Archer LX and more all week long at booth #140. ❤️

06/13/2022

The M600/SLS always knows how to make an entrance.✨

📸: Jim Barrett Photography

06/07/2022

Chart your course and reach new heights.

✈️: King Air 360

05/04/2022

Monday adventures in the Bonanza 💯

05/03/2022
New Product!
04/05/2022

New Product!

PAR 36 LED Taxi Light, 12 Volts. FAA-PMA approved.

03/22/2022

Whelen Parmetheus Plus LED Landing Light, PAR 36 12 / 14 Volt. Model P36P1L, Part 01-0771833-10

Address

709 Airport Road
Burlington, WI
53105

Opening Hours

Monday 7am - 5pm
Tuesday 7am - 5pm
Wednesday 7am - 5pm
Thursday 7am - 5pm
Friday 7am - 5pm

Telephone

+12627635100

Website

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Our Story

Knots 2U was founded by Jim Bradshaw in 1981 for the purpose of adding speed and efficiency to aircraft. The first airplane modified was a Piper Twin Comanche, which went on to win the Cafe 400 Air Race in 1982. Soon other planes were added to the list including the Single Comanche, Cherokees, Arrows , Lances, Senecas, Beech Bonanzas and Barons. Our latest addition is a complete line of modifications for Cessna single engine aircraft. Knots 2U now has over 70 STC'd modifications with over 30,000 kits installed worldwide! Unlike some "if it looks good, it must be good" mods out there today, Knots 2U's approach has been to use scientific data and analysis to develop the most efficient designs, while at the same time keeping prices reasonable and affordable. Knots 2U also works hard to make sure our mods are designed with future maintenance in mind. A mod that will have to be removed for maintenance or inspections is made to be removed easily and quickly. All products are manufactured by specialized contractors, or at Knots 2U's in-house fabrication and installation shop, under the guidance and constraints of our FAA-PMA (Parts Manufacture Approval). The use of space age materials such as Kevlar and Carbon Fiber are part of the Knots 2U effort to stay abreast of the times. A trade-mark of a Knots 2U mod is that they are designed to look as if they were meant to be there from the factory, not an afterthought. We are often asked the difference between our products and others on the market today. The answer is simply "look at them on an airplane.. you will see the difference!”