All Articles

Tailwheel Stinger Movement

The original Bearhawk A model had a leaf type tailwheel spring. The B model changed to a stinger. Early on during test flying I noticed...

Trim Tab Hinge Play

Another Bearhawk owner found play in both pitch trim tab hinges. Upon inspection I found the same issue with mine. At the time we tried...

Elevator rubbing

During initial assembly we found my right elevator torque tube to be in very close proximity to the adjacent support bracket. I had...

Part Numbers for Maintenance Items

This page contains a list of routine maintenance parts together with part numbers for easy ordering as they apply to my Bearhawk 4B....

Loss of Elevator Authority at forward CG

When at a CG forward of approximately 14" and at very low airspeeds, there may be insufficient airflow over the tailplane and elevators...

Landing Gear Oleo Streamlined Struts

A number of Bearhawk aircraft that were fitted with a streamlined Oleo Landing Gear strut have experienced gear collapses, usually...

Control Stick play

A number of Bearhawk builders had noted an (annoyingly) high amount of control stick play in the fore-aft axis. The play appears to come...

Broken Flap guide

At least one Bearhawk owner has reported a cracked flap guide (red arrow in the photo below). The symptoms were that the flap handle was...

The Math (Gulp !)

In this post we take a look at some real world numbers for the Bearhawk. If this makes your eyes glaze over, feel free to skip right to...

Pitch Trim Tab linkages

Some 4-place model owners have reported movement in the pitch trim tab linkages at the front bushing. The original kit-sets had a rod-end...

Flap Limit speeds and Maximum angles

Bearhawk designer Bob Barrows issued an engineering notice HERE. It is understood that the notice applies to those models with larger...

Flap Pulley Wear

Several Bearhawk owners have reported wear observed on the inside of the exterior fuselage flap pulleys, generally at around 400 flight...

Carbon Monoxide

Carbon Monoxide (CO) is an ever-present risk for all light aircraft. A number of Bearhawk builders have reported difficulty in preventing...

Vortex Generators

Vortex Generators offer a number of incremental performance improvements with no observable change to cruise speed. Installation A number...

Tail-wheel training notes

The following notes are written by Grant Bisset of Wanaka, New Zealand. These notes are not a substitute for quality instruction from an...

Circuit Handling

Normal Landing Discussion Caution: Please read the Safety Notes on this website regarding Loss of Directional Control on Landing. Quite a...