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Old Yesterday, 03:33 PM
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6s 3700. 435 30c for me as well
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Old Yesterday, 04:14 PM
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If you are going to stack: 2200, 3000, and 3700 will do:

1 x 3700 = 3700
2x 2200 = 4400
1x 3000 + 1x 2200 = 5200
1x 3700 + 1x 2200 = 5900

6S and 1600W is 72A so:

72A / 3.7Ah = 19.5C
60 mins / 19.5C = 3 minutes
3 minutes * 80% capacity = 2.46 minutes
2.46 mins / .40 Power Average = 6.2 minutes flight time.

12S and 3000W is 68A so 6.5 mins with 3700mAh
12S and 3500W is 79A so 6.7 mins with 4400mAh
12S and 4000W is 90A so 5.9 minutes with 4400mAh
12S and 4500W is 101A so 6.2 minutes with 5200mAh
12S and 5000W is 113A so 6.3 minutes with 5900mAh
12S and 5500W is 124A so 5.7 mins with 5900mAh
or 6.4 minutes with 6600mAh (2x 3x 2200)
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Old Yesterday, 04:23 PM
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Of course that's:

12S 3700mAh = 2x 6S 3700
12S 4400mAh = 4x 6S 2200
12S 5200mAh = 2x 6S 2200 + 2x 6S 3000
12S 5900mAh = 2x 6S 2200 + 2x 6S 3700
12S 6600mAh = 6x 6S 2200
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Old Yesterday, 04:39 PM
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For a 60" EXP I thought both from reading here and my personal experience that a good battery weight to shoot for is somewhere in the mid 500 gram range. The glacier and pulse I flew last season are in that range and I like both. The Revo 435 30C line goes from 3700 @ 495g to 4600 @ 620 g. Not sure if I'd like something as light as 495, and I am pretty sure I wouldn't like something as heavy as 620.
It has occurred to me that for flights concentrating more on precision stuff extra weight isn't really a problem, and 4600 would give you a nice flight time even with heavy throttle usage. But is the 30C good enough for heavy throttle usage?

I got some 427 3600's after the flying season ended (shipping snafu), 2 70C @ 575g which I think is a weight I'll like, and 2 40C @ 500g which I'm interested to see both if I like the weight and if the 40C hold up well.
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Old Yesterday, 04:41 PM
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Got to finally fly the 74 laser gas converted to electric with the scorpion 5525 195 21x10 Xoar prop revo 6s x2 3700 435 it fly's great seems to have a bit more power than it did with the DA 35 & pitts vertical climb seemed faster with this electric setup I'm very happy with it

I just want to say thanks to Aeroplayin for all the help and leading me in the right direction with the motor selection much appreciated
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Old Yesterday, 05:01 PM
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If guys didn't ask questions, offer some results of a setup we've never considered, or even challenged us to do the math by saying something that just sounds crazy, I don't think this thread would have been as helpful as it has. I know that questions and suggestions by all the guys here have really pushed us to figure it all out. So you're welcome, but I feel uncomfortable taking any credit other than for verifying and organizing the data that validates things we've learned here together.
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Old Yesterday, 05:07 PM
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Quote:
Originally Posted by Aeroplayin View Post
If guys didn't ask questions, offer some results of a setup we've never considered, or even challenged us to do the math by saying something that just sounds crazy, I don't think this thread would have been as helpful as it has. I know that questions and suggestions by all the guys here have really pushed us to figure it all out. So you're welcome, but I feel uncomfortable taking any credit other than for verifying and organizing the data that validates things we've learned here together.
Then I guess you're just going to have to get used to feeling uncomfortable, Jim
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Old Yesterday, 11:33 PM
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Quote:
Originally Posted by Aeroplayin View Post
One of the guys that actually make motors may have to answer that for you. Ken (Subsonic Ken)and Louis (Fourdan) are two that I know of.

As for timing issues after re-gluing magnets, I have no clue how they would be related since I never re-glued a magnet, and never had to. I either tossed the motor (most cases) or sent it back and got a replacement. I rarely give motors a second chance unless I've had the track record that I've had with Motrolfly and Hacker. If I lose a magnet on one now, I'd consider it an anomaly.
I was able to fix my old torque 4014t 570 and it is running awesome.
Thanks to Zack at Extreme flight. Aero, its to bad you just toss them.
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Old Yesterday, 11:46 PM
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Quote:
Originally Posted by rcpilot_971 View Post
Got to finally fly the 74 laser gas converted to electric with the scorpion 5525 195 21x10 Xoar prop revo 6s x2 3700 435 it fly's great seems to have a bit more power than it did with the DA 35 & pitts vertical climb seemed faster with this electric setup I'm very happy with it

I just want to say thanks to Aeroplayin for all the help and leading me in the right direction with the motor selection much appreciated
I like the Falcon 22x10 CF E1 better on that setup. I know it is a pricy prop, but I think you will like the upgrade in power.
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Old Yesterday, 11:54 PM
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The revos I have ordered are 40C 3700s and 30C 5100 and 5900s in 6s. I just got 4s 2500 and 3200s for my 48 and 51. With the new 70C line I will pick up some more this spring for EDFs.

3700s are perfect for the 60" stuff
5100s are good for light weight 5000 class batteries
5900s offer extra capacity at the same typical 5000 weight

The 4s 2500s will be good for the 48" class

These are all sizes revo is out of stock of on occasion and probably the most popular in 3D planes.

There are the 10s folk, and they tend to gather around the 5s 5000 from F3A pattern.
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Old Today, 12:19 AM
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Originally Posted by Enterprise7 View Post
I like the Falcon 22x10 CF E1 better on that setup. I know it is a pricy prop, but I think you will like the upgrade in power.
How much more power were you getting with the 22x10 CF
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Old Today, 09:59 AM
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I am going to have to really dig into the telemetry logs to answer that with numbers. I flew the plane this week and had 6600 Rpm in a straight vertical pull out and saw over 7000 in cruise. Have to look at what you are getting on the 21x10 PJN to get a comparison, but I usually like bigger diameter props and the CF is lighter than the wood PJN so angular forces on the shaft should be reduced.
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Old Today, 10:06 AM
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Quote:
Originally Posted by Enterprise7 View Post
I am going to have to really dig into the telemetry logs to answer that with numbers. I flew the plane this week and had 6600 Rpm in a straight vertical pull out and saw over 7000 in cruise. Have to look at what you are getting on the 21x10 PJN to get a comparison, but I usually like bigger diameter props and the CF is lighter than the wood PJN so angular forces on the shaft should be reduced.
Where did you get the 21x10 CF E1
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Old Today, 11:50 AM
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It is a 22x10 CF E1. I also flew a 21x10 PJN and Falcon wood E1 at some point. No 21x10 CFs I know of.
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