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Engine Issues
History I originally purchased a refurbished Lycoming engine from an engine supplier who is very closely affiliated with the Bearhawk...
5


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...
40


Trim Tab Hinge Play
Several Bearhawk owners have reported excessive play in the trim tab hinges, including two high time Bearhawks, and two low time...
50


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...
40

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
History : A number of Bearhawk aircraft that were fitted with the original streamlined Oleo Landing Gear strut have experienced gear...
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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
Several 4-place model owners have reported movement in the pitch trim tab linkages at the front bushing. One of the higher time Bearhawk...
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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...
15


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...
69

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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