[TowerTalk] Cranking horsepower

alsopb alsopb@gloryroad.net
Sun, 16 Apr 2000 20:17:08 +0000


Using your numbers and a crank radius of 1 foot and HAZER, quad, rotor
weight of 125#, I get 0.004 hp.  I am sure you could keep this up all
day. Multiply this by a factor or 2 or 3 for friction and it's still
quite small.

In fact, I first started using a 1/2" electric drill.  However, it
became obvious that one could not feel binding or other bad things
that happen in raising or lowering (like catching a quad wire on the

73 de Brian/K3KO
I find it interesting to run some numbers on this posting:

1. 2400 hand cranks in an hour is 2/3 of crank each second continuos
for an

2. Raising approximately 200 pounds (Hazer, beam, 40m dipole, and
equates to 5 pounds
    per crank revolution.

3. Raising approximately 200 pounds 60' in an hour equates to 3.3
pounds per
second continuos
    for the hour and does not include the efficiency of the

4. It is amazing what a little electric motor can do--I am quite sure
that I
could not sustain this effort.

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