OK I'm finaly done with testing these blades and the GM car alt genny.
Its as close to a Wind Blue as I'll ever get. That is I have the Wind Blue Stator, The Cyclone blades used on it and a GM claw NEO rotor From Hydrogen Appliances or Hornet.
The Wind Blue rotor may be a littel better? But I don't think it would change my #s much. If Wind Blue wants to send me there rotor I'd be happy to test it and send it back.
The first 4 tests were done with the stator all stock 3 phase star. I benched this stator. Wind Blue says its cutin is 150 rpm. I got 12.7 volts from it at 158 rpm so close enough good call Wind Blue.
Blades tested today. TLGs 55" boast Busters 3 blade, TLGs 63.5" Wind Blue Cyclone 2 blade, A 55" 3 blade Jerry Blade set and my standard 48" 3 blade set.
These are truck mounted tests. I havn't got the wind tunnel up to the higher speeds yet. So the real MPH #s may be scewed but all blades were tested under the same conditions.
Here are the #s for each blade type.
TLGs boast buster star.
5 mph 0 watts
10 mph 0 watts
11 mph 6.2 watts
15 mph 18.6 watts
20 mph 63.28 watts
25 mph 90.11 watts
30 mph 113.64 watts
35 mph 133.95 watts
TLGs Cyclone 2 blade star.
5 mph 0 watts
10 mph 0 watts
13 mph 6.34 watts
15 mph 25.4 watts
20 mph 50.91 watts
25 mph 90.17 watts
30 mph 105.6 watts
35 mph 136 watts
55" plastic Jerry Blades star.
5 mph 0 watts
10 mph 0 watts
11 mph 6.36 watts
15 mph 38.23 watts
20 mph 70.86 watts
25 mph 117 watts
30 mph 140 watts
35 mph 170 watts
Now my standard 48" plasic blades. I knew these wouldn't do much. Just to much stal with this alt with stock wiring.
48" Jerry Blades star.
5 mph 0 watts
10 mph 0 watts
15 mph 12.75 watts
20 mph 12.79 watts
25 mph 25.65 watts
30 mph 64.79 watts
35 mph 195.75 watts
Now on to the next phase of testing or should I say Jerry phased or Jerry rigged.
In this test all 3 phases were seperated. Each phase was connected to its own and seperate fullwave bridge. The DC ouptputs of the bridges were perelelled. Not sires for this stator. This stator is wound with 22 ga. wire not the normal 12 ga. in a stock alt. It measured 2.5 oms per phase. A stock alt just reads 0 ohms per phase.
Many turns of small wire. This is how they get the 150 rpm cutin but at a big loss in amperage. By Jerry rigging it I've effectivly cut the resistance in half, tripeled the amperage but increased the cutin rpm requierment by 3.
However gennies of this size use blades, if designed right that work very well at this requiered rpm and with a better power match.
Here are the Jerry Rigged #s same alt same blades.
TLG Cyclone , I didn't do the Boast busters on this test but they would be very close to the Cyclone #s.
Cyclone (JR)
5 mph 0 watts
10 mph 0 watts
15 mph 38.1 watts
20 mph 64 watts
25 mph 103.68 watts
30 mph 117 watts
35 mph 210 watts
37 mph 255.6 watts
55" extended plastic Jerry Blades. (JR)
5 mph 0 watts
7 mph 12.8 watts
10 mph 25.6 watts
15 mph 64.14 watts
20 mph 193.2 watts
25 mph 210 watts
30 mph 259.2 watts
48" standard Jerry Blades. (JR)
5 mph 0 watts
10 mph 0 watts
12 mph 12.68 watts
15 mph 96 watts
20 mph 127 watts
25 mph 149.5 watts
30 mph 224.4 watts
35 mph 345 watts These smaller blades were realy fyin.
Its aperant to me that These Gm alt type gennies have room for improment. These makers should be looking into better blade matching and a diferant wiring scheem.
I'll just put the stock #s next to the upgrade #s for a line of site compairison.
63.5 " 2 blade 55" 3 blade
Stock W B alt genny star & blades upgrade #s (blades & wiring scheem)
5 mph 0 watts 0 watts
7 mph 0 watts 12.8 watts
- mph 0 watts 25.6 watts
- mph 25.4 watts 64.14 watts
- mph 50.91 watts 193.2 watts
- mph 90.17 watts 210 watts
- mph 105.6 watts 259.2 watts
I would think anyone how owns and flys one of these car alt gennies would like to make the upgrades. Even if the manufactures are not intrested?
WE'll see if there watching?
Like I said my #s may be scewed from the cab over wind but the diferances are very real. I don't think I'm that far off from reality here.
Jerry