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...
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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...
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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...
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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....
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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Flap Pulley Wear
Several Bearhawk owners have reported wear observed on the inside of the exterior fuselage flap pulleys, generally at around 400 flight...
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Carbon Monoxide
Carbon Monoxide (CO) is an ever-present risk for all light aircraft. A number of Bearhawk builders have reported difficulty in preventing...
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Vortex Generators
Vortex Generators offer a number of incremental performance improvements with no observable change to cruise speed. Installation A number...
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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...
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Circuit Handling
Normal Landing Discussion Caution: Please read the Safety Notes on this website regarding Loss of Directional Control on Landing. Quite a...
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Upper Air Handling
Effect of CG on Stall Discussion The Bearhawk has a very wide CG envelope compared to many light aircraft, and therefore exhibits it's...
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Ground Handling
Amateur built aircraft differences Discussion No two Bearhawks are likely to be the same. In addition to the differences between models,...
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Accident Database Search
The easiest way to search aircraft accidents is at Aviation Safety Network. Each report has a link to the relevant NTSB file. This...
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Flap Handle Wear
One owner reported wear on the flap handle lower bolt hole at the 1000 hour inspection. The original 3/16" hole had elongated and...
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Tail-low Wheel Landing
Photo Credit Grant Bisset I felt that this landing technique deserved it's own page. The usual landing technique used in the back-country...
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Heavy Wing
When I was test flying my Bearhawk I noticed that in level flight the right aileron was reflexed slightly more than the left. It flew...
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Loss of Directional Control on Landing
The Bearhawk is a well mannered aircraft among tail-draggers. However tail-draggers as a group are more challenging to handle during...
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Fuel Servo Finger Filter
On my aircraft I observed a decrease in fuel pressure on two separate occasions while in the cruise at 8500ft. A subsequent data download...
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