The vertical stabilizer is one of those parts you don’t notice—until it’s even slightly off.
A small crack, twist, or loosened mounting area can show up as constant rudder trim, weird yaw on takeoff, or that “why won’t it track straight?” feeling in a crosswind.
This Vertical Stabilizer replacement is the clean way to get your CNHL Bison XT STOL 1750mm back to proper fin-and-rudder alignment.
Part type: Vertical stabilizer (fin) foam replacement
When You Need a Vertical Stabilizer Replacement
Tip-over on takeoff/landing that nicked the fin or stressed the tail
Cracks around the fin base or mounting area that keep spreading
Fin twist/warp that leads to constant rudder trim and drifting flight paths
Rudder feels “not centered” even after re-linking and servo re-center
Transport damage (fin is a common pressure point in the car)
What Vertical Fin Damage Feels Like in the Air
If your Bison suddenly needs more rudder correction than you remember—especially during rollout, low-speed turns, or in gusty conditions—the fin may be the hidden culprit.
A straight fin helps the airplane hold heading without fighting you, which matters a lot on STOL-style approaches where you’re slower and closer to the stall margin.
Install Notes (Practical)
Square it up: before final fastening, sight down the fuselage and confirm the fin is centered and vertical.
Rudder neutral: re-center the servo and re-check linkage so the rudder isn’t “pre-loaded” to one side.
First flight after repair: do a calm takeoff, climb out, then trim at a safe altitude before slowing down.
CNHL products come with a 90-day warranty from the date of purchase, unless otherwise stated in the product listing.
This warranty covers original defects in materials and workmanship. It does not cover normal wear and tear, puffing, swelling, over-discharge, over-charge, improper storage, crash or water damage, connector changes, or any damage resulting from misuse or mishandling.
If you find that a product purchased from us is defective within the 90-day warranty period, please contact us to arrange a return for inspection. Based on our evaluation, we will usually repair, replace, or offer an appropriate solution at no additional charge.
Please note that customers are responsible for the shipping costs when returning products for inspection or warranty service.
Your country or region needs to correspond to the shipping warehouse
Global Warehouse
Global Warehouse (including Global-CN2) orders are usually dispatched via standard shipping within 4–5 working days. The shipping time is typically 20–25 days, or 10–15 days if the order is shipped from Global-CN2.
US (LA) Warehouse
For the US (LA) Warehouse, orders usually are sent out in 2 to 3 working days. Orders are shipped to the United States via USPS or FedEx service (Free Shipping on orders over $79), the shipping time need 3-7 working days. We also ship to Canada via UPS, the shipping usually takes 10-12 working days, the shipping cost is $169.
US Warehouse
For the US Warehouse, orders usually are sent out in 1 to 2 working days. Orders are only shipped to United Status via USPS service (Free Shipping on order over $69), the shipping time need 3-7 working days.
EU Warehouse
For the EU Warehouse, orders are usually sent out in 1 to 2 working days, and shipping time takes 5-10 working days.
UK Warehouse
For the UK Warehouse, orders are usually sent out in 1 to 2 working days. Orders are only shipped to the United Kingdom via Yodel/Hermes/DPD service (Free Shipping on orders over $69), the shipping time takes 3-7 working days.
AU Warehouse
For the AU Warehouse, orders are usually sent out in 1 to 2 working days. Orders are only shipped to Australia via AU Post service (Free Shipping on orders over $79). The shipping time is 3-7 working days.
CA Warehouse
For the CA Warehouse, orders are usually sent out in 1 to 2 working days. Orders are only shipped to Canada via Amazon UPS/FedEx/CA Post service (Free Shipping on orders over $99). The shipping time needs 3-7 working days.
