bearhawkproject.com Matt Kunkel's Bearhawk Build Log

Ventral Fin Stand-Off

I added a fitting for a ventral fin which may be necessary to add vertical area to the plane if placed on floats.  The need for a ventral fin is dictated by engine/propellor selection (power) and the profile of the floats in the water.  I measured, drafted a pattern, fabricated the part, welded, and sprayed corrosion protection today.  The stand-off is made of .063 4130 steel.