Just as another data point I saw a Freedom 33 circa 1981-83 at a marina
last month (I have one but its not mine). Mounted on the front near the
top of the mizzen mast was a very large wind generator. It was mounted
with an extensive frame to keep the blades far enough in front of the
mast to allow some rotation. The metal frame was tubular and attached
with bolts or rivets to the mast. It looked like it had been there a
long time.
I would never recommend this either for the mast or just because of the
large amount of weight aloft but thought I’d mention it as a sort of
real world stress test showing how strong these masts are made.
Alan F-33 Hull #51 1982
If the windgenerator was an Airmarine (I had one on my previous
boat), than I can add that according to the specs, the force on the
propellor can be a maximum of 75 kilograms. You need quite a strong
mounting device to cope with a constantly shifting load (shifting in
strength and in direction).
Just as another data point I saw a Freedom 33 circa 1981-83 at a
marina
last month (I have one but its not mine). Mounted on the front
near the
top of the mizzen mast was a very large wind generator. It was
mounted
with an extensive frame to keep the blades far enough in front of
the
mast to allow some rotation. The metal frame was tubular and
attached
with bolts or rivets to the mast. It looked like it had been there
a
long time.
I would never recommend this either for the mast or just because
of the
large amount of weight aloft but thought I’d mention it as a sort
of
real world stress test showing how strong these masts are made.
Alan F-33 Hull #51 1982
As I said before,it has been there more than 15 years,with no
problem,along with a radar and a radar reflector.
michel.capel wrote:
If the windgenerator was an Airmarine (I had one on my previous
boat), than I can add that according to the specs, the force on the
propellor can be a maximum of 75 kilograms. You need quite a strong
mounting device to cope with a constantly shifting load (shifting in
strength and in direction).
Just as another data point I saw a Freedom 33 circa 1981-83 at a
marina
last month (I have one but its not mine). Mounted on the front
near the
top of the mizzen mast was a very large wind generator. It was
mounted
with an extensive frame to keep the blades far enough in front of
the
mast to allow some rotation. The metal frame was tubular and
attached
with bolts or rivets to the mast. It looked like it had been there
a
long time.
I would never recommend this either for the mast or just because
of the
large amount of weight aloft but thought I’d mention it as a sort
of
real world stress test showing how strong these masts are made.
Alan F-33 Hull #51 1982