Yeah, about -$250 so far.
EZ Power Pack Pizza Box
- Thread starter BadAir
- Start date
Mr Man
Mr SPEED!
Spent or have left?
I'm about $250 out of pocket so far. Don't tell my wife.
Mr Man
Mr SPEED!
😂😂
L Edge
Master member
That may be fun with FPV.
Don't tell my wife what this stuff costs..... I build from scratch. Individual components aren't a major purchase, While all the parts combined are.I'm about $250 out of pocket so far. Don't tell my wife.
Mr Man
Mr SPEED!
Yes😂Don't tell my wife what this stuff costs..... I build from scratch. Individual components aren't a major purchase, While all the parts combined are.
So, we built a run stand and tried a few things today.
The Hammerhead Eagle i-Thrust 2.1 ran into a backboard and broke a prop. It fly very well, but I don't have another set of props. These came from the clearance bin of the local hobby shop. I was bummed because it flew so well and I haven't seen anything like it.
So, I tested the remaining 3" prop. 85% more thrust than the EZ prop on the 816 supplied with EZ kit. Maybe a tiny bit less stable a full throttle.
The only other prop on hand was a 65mm drone prop. I didn't have high hopes, but it easily doubled the output of the EZ prop. Too good to be true. Surely this will destroy the ESC. As luck would have it, one of our boards had lost its antenna, so we made ready to sacrifice him to science!
But he didn't die. In fact, if anything it was more stable than the EZ prop. So left the it at 100% throttle for 4.5 minutes. Voltage started to drop after 90 seconds or so and thrust declined steadily. The battery was warm enough to notice and that was it.
But I wanted the magic smoke. So I grabbed 4 fresh batteries and ran them back to back to back. 20 minutes with the only interruption being my changing batteries and binding the transmitter. The only result was 4 warm batteries.
So I told a student I'd buy him a Coke if could kill it using only the throttle. He used up two more batteries in a little less than 15 minutes.
The original battery was recharged by then so rechecked the thrust to see if we had accomplished anything. Same numbers.
So I ran it at full throttle for 30 seconds then reduced it to half and let it run. It shut itself off after about 6 minutes.
I swapped in the 8520 and went looking for big numbers like I was home from school sick and The Price is Right was on.
I started out slow and was happy to see there was none of the drama of the 816. I'd bump up the throttle, the pitch would change slightly and the new number would appear on the scale like it was engraved in stone. Again, and again and again. All the way to full throttle. I couldn't believe the number. I ran the test over and over. Always the same. Perfect and reliable, no drama. Less power than the 816. A good bit less.
Why? Because that's what happens when you run a 7.4v motor on a little under 4 volts.
The Hammerhead Eagle i-Thrust 2.1 ran into a backboard and broke a prop. It fly very well, but I don't have another set of props. These came from the clearance bin of the local hobby shop. I was bummed because it flew so well and I haven't seen anything like it.
So, I tested the remaining 3" prop. 85% more thrust than the EZ prop on the 816 supplied with EZ kit. Maybe a tiny bit less stable a full throttle.
The only other prop on hand was a 65mm drone prop. I didn't have high hopes, but it easily doubled the output of the EZ prop. Too good to be true. Surely this will destroy the ESC. As luck would have it, one of our boards had lost its antenna, so we made ready to sacrifice him to science!
But he didn't die. In fact, if anything it was more stable than the EZ prop. So left the it at 100% throttle for 4.5 minutes. Voltage started to drop after 90 seconds or so and thrust declined steadily. The battery was warm enough to notice and that was it.
But I wanted the magic smoke. So I grabbed 4 fresh batteries and ran them back to back to back. 20 minutes with the only interruption being my changing batteries and binding the transmitter. The only result was 4 warm batteries.
So I told a student I'd buy him a Coke if could kill it using only the throttle. He used up two more batteries in a little less than 15 minutes.
The original battery was recharged by then so rechecked the thrust to see if we had accomplished anything. Same numbers.
So I ran it at full throttle for 30 seconds then reduced it to half and let it run. It shut itself off after about 6 minutes.
I swapped in the 8520 and went looking for big numbers like I was home from school sick and The Price is Right was on.
I started out slow and was happy to see there was none of the drama of the 816. I'd bump up the throttle, the pitch would change slightly and the new number would appear on the scale like it was engraved in stone. Again, and again and again. All the way to full throttle. I couldn't believe the number. I ran the test over and over. Always the same. Perfect and reliable, no drama. Less power than the 816. A good bit less.
Why? Because that's what happens when you run a 7.4v motor on a little under 4 volts.
I was hoping it wouldn't, but I wanted to give it a real test.
I haven't yet. These tiny wires and connectors give me fits. I have some parts order and we absolutely will try.
I had some badly placed antennas on quads when I first started out.
Later, crash damage on quads and planes. I learned to repair replace the different types of antennas
Wire/coax
Because it seems like it should fly, but it flat refuses.
Mr Man
Mr SPEED!
Is CG right?
