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GeneralRe: Thought of the Day Pin
OriginalGriff20-Aug-18 21:34
mveOriginalGriff20-Aug-18 21:34 
GeneralFood For Thought Pin
W Balboos, GHB20-Aug-18 3:50
W Balboos, GHB20-Aug-18 3:50 
AnswerRe: Food For Thought Pin
megaadam20-Aug-18 3:56
professionalmegaadam20-Aug-18 3:56 
GeneralRe: Food For Thought Pin
CodeWraith20-Aug-18 4:18
CodeWraith20-Aug-18 4:18 
GeneralRe: Food For Thought Pin
Daniel Pfeffer20-Aug-18 4:08
professionalDaniel Pfeffer20-Aug-18 4:08 
GeneralRe: Food For Thought Pin
lopatir20-Aug-18 5:40
lopatir20-Aug-18 5:40 
GeneralRe: Food For Thought Pin
Chris Quinn20-Aug-18 21:59
Chris Quinn20-Aug-18 21:59 
GeneralBetter than all the others Pin
CodeWraith20-Aug-18 2:15
CodeWraith20-Aug-18 2:15 
We had a bathtub submarine, a bathtub tank and some suggestions what else to do in a bathtub. This one here is even better: The flying bathtub[^].

If I counted right, they need 24 of the same 5000 mAh batteries I fly with, four for every motor. Probably in a 12s2p configuration.

Edit: I recognized the manufacturer of the motors, batteries and probably most of the electronics. That's about 2500 bucks worth of batteries and at least 3500 bucks for the motors. This little toy probably would cost around 8000 if you have to buy the parts in the store.

Edit^2: I have looked up the motors on the manufacturer's homepage and done some math. With four batteries there are two possible configurations:

1) 12s2p. That means 12 LiPo cells in series (= 44.4 volts) and the whole thing twice in parallel (= 10000 mAh, or 10 Ah). 10 Ah sounds great, at least until you read that the motor draws up to 100 Ampere at max. That gives you only 6 minutes until the batteries are totally empty , which should never happen.

2) 6s4p Basically that is all four batteries in parallel. That gives us 22.2 volt and 20000 mAh (= 20 Ah). In this configuration the same motor only draws 80 Ampere max. This gives us 15 minutes.

I'm aware that the motors do not run at full blast all the time, but we must calculate with some margin. For example the batteries should have 15 - 20% of their capacity left when you are done, otherwise they may be damaged or completely destroyed. We will not get very much more than those 6 or 15 minutes, which will make the bathtub a nice toy, but nothing more.
I have lived with several Zen masters - all of them were cats.

His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.


modified 20-Aug-18 11:25am.

GeneralRe: Better than all the others Pin
Mike Hankey20-Aug-18 3:15
mveMike Hankey20-Aug-18 3:15 
GeneralRe: Better than all the others Pin
W Balboos, GHB20-Aug-18 3:48
W Balboos, GHB20-Aug-18 3:48 
GeneralRe: Better than all the others Pin
CodeWraith20-Aug-18 4:25
CodeWraith20-Aug-18 4:25 
PraiseRe: Better than all the others Pin
Eric Lynch20-Aug-18 4:38
Eric Lynch20-Aug-18 4:38 
GeneralRe: Better than all the others Pin
CodeWraith20-Aug-18 4:59
CodeWraith20-Aug-18 4:59 
GeneralRe: Better than all the others Pin
DRHuff20-Aug-18 5:28
DRHuff20-Aug-18 5:28 
GeneralRe: Better than all the others Pin
CodeWraith20-Aug-18 5:37
CodeWraith20-Aug-18 5:37 
GeneralRe: Better than all the others Pin
DRHuff20-Aug-18 5:55
DRHuff20-Aug-18 5:55 
GeneralRe: Better than all the others Pin
CodeWraith20-Aug-18 7:54
CodeWraith20-Aug-18 7:54 
GeneralWSO CCC OTD Solution Pin
OriginalGriff20-Aug-18 2:04
mveOriginalGriff20-Aug-18 2:04 
GeneralRe: WSO CCC OTD Solution Pin
pkfox20-Aug-18 6:52
professionalpkfox20-Aug-18 6:52 
GeneralRe: WSO CCC OTD Solution Pin
OriginalGriff20-Aug-18 7:37
mveOriginalGriff20-Aug-18 7:37 
GeneralRe: WSO CCC OTD Solution Pin
pkfox20-Aug-18 8:14
professionalpkfox20-Aug-18 8:14 
GeneralRe: WSO CCC OTD Solution Pin
OriginalGriff20-Aug-18 8:21
mveOriginalGriff20-Aug-18 8:21 
GeneralRe: WSO CCC OTD Solution Pin
dan!sh 20-Aug-18 20:27
professional dan!sh 20-Aug-18 20:27 
GeneralMOTD Pin
Super Lloyd20-Aug-18 1:10
Super Lloyd20-Aug-18 1:10 
GeneralRe: MOTD Pin
CodeWraith20-Aug-18 1:48
CodeWraith20-Aug-18 1:48 

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