The traditional method of fixing the hammer on the handle is wedging. Over time, however, the knot loosened and it is necessary to change the wedge or pen.
I suggest to fix a clogged wedge with a screw or rivet passed through the bore in the sidewall of the through hole.
Recommend to read
TIMER ON CO2…
Without the engine the model doesn't fly. But to rely on the ice today is not necessary: the mass of the motors is just terrible. You can, of course, many years ago, to do "resinator"...
GLIDER CG-3A – WOODEN “SCHOOL DESK” AMERICAN PARATROOPERS
In February 1941 Aviatsionny corps of the U.S. army (the predecessor of the air force, U.S. army) became interested in the possibility of using gliders in the landing and transportation...