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That budget will allow you to go with the good stuff. No need to cut corners and settle for less on your end goal.

Hey griz. Let's jump back on controllers for a minute. Relating to the discussion that GJH and I were having about voltage/ motors etc. Being able to swap from one size battery to another is a great way to add to the T960's flight envelope. With many controllers this involves hooking up to a...

Wow! You have a BIG brain!! Holy crap! Doing that exercise never entered my little pea brain.o_O

I don't see a 3s listed so I'm guessing you did some calc's to come up with that figure. The 4s 465kv with 18x6.1 prop produces 920grams of thrust at 37.5% throttle while drawing only 4.3amps at a lb/hp efficiency ratio of 24.01. The 6s 465kv with 18x6.1 prop at 37.5% throttle produces a...

https://cdn.shopify.com/s/files/1/0496/8205/files/KDE_Direct_XF_M-R_Brushless_Performance_Testing_-_KDE4215XF-465.pdf?9121605231106288136

I think I am beginning to understand. I have been trying to locate this one website that explained very well the relationship between voltage on a given motor and the longer flight times. He explained why operating at a lower voltage , up to a point, worked that way. I'll keep looking. I know...

Maybe I'm just dumb but I still don't understand. Sticking with the manufacturers motor performance charts a motor that can operate on 4s or 6s, using the same prop, always uses more amperage at less efficiency on 6s than it does on 4s. It will lift more but won't fly as long. I feel I'm missing...

Ok. Help us all out here. Please explain, because everything I have read cites facts and figures that contradicts that. Just looking at the motor manufacturers charts shows about a 20% or more drop in efficiency when using the same prop and going from 3s to 4s power. You gain more lifting...

I think the Naza is an excellent choice as well. I have a NAZA M Lite and a SuperX mini. The SuperX is easier to set up and fly. At least for me. The Naza has performed very well but it has not been quite as easy to set up and fly. The RTH feature on the SuperX works better than the Naza, for...

Notice also on the 6s battery you would spike the 55a ESC at WOT with a 18x6 prop. Get the 75a. They will run a little cooler and protect against any spikes. The lifting power is huge on these motors with 6s batteries and 18" props.

https://cdn.shopify.com/s/files/1/0496/8205/files/KDE_Direct_XF_M-R_Brushless_Performance_Testing_-_KDE4215XF-465.pdf?9121605231106288136

Do you have any idea yet what you think the AUW will be? Add everything up before deciding on motors. The 4s, 6s,8s is the recommended battery size. As a general rule, the lower the battery voltage you can use the more efficient ( flight time ). The higher the battery voltage you can use the...

All back together but have had no time to play. I've only flown my Helimax in the yard and that's it.

Ahhhh .... Now I get what you mean! Although that does shorten the flight time. It does give you a nice break by having to land and change the batteries. Sometimes it gets a little tiring after 15-20 minutes of concentrating on not making a hole in the ground.......:p

Thanks. You answered most of my questions. I still believe one 10000mah battery is better than 2 5000mah batteries. I'm not sure I get what you mean by "multiple smaller batteries". I understand what you explained about the parallel batteries. I had not thought about the LVC possibility. You...

Yeah. You've had quite the schedule. I have a question for you. I was talking to a friend about using 2 lipo's wired in parallel on a quad. I said one large battery is better or if using 2 batteries have each one power 2 motors. My reasoning is that manufacturing and charging/balance...

Yeah. It kinda got me excited about something a bit different. A derivative of it could probably be made to work but the additional complexity of using more motors and a variable pitch main rotor likely wouldn't be worth it. At least not to me. Sounds like that would be more up your alley! :)

Bummer..... I have accumulated enough info now to determine that this project is a dead end as far as improving on the standard quadcopter design. It would be a novelty only. Nuts. It looked so cool! The final determination of the research project was that it did increase flight times and...

It's fine to use a ESC slightly larger than needed. The motors will only draw what they need. Some of the guys here use 30a ESC's for everything they build unless it's a really large multi. The balance plug adapter should be fine. You might still try a ferrite barrel on it to be safe. BTW if...

I think I didn't explain clearly. On your current setup, the + & - ESC power leads go to the PDB. The BEC leads go to the FCB. Remove the positive lead from the connectors on 3 of the BEC leads by lifting the retaining tab and sliding the wire from the connector. Fold it back and wrap a piece of...