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DarkButterfly:
18 Aug 2019 19:13:57
Had another negative encounter, it's been a few years since the last one, just an uneducated ******, going on about drones being illegal yada yada yada.    :-/
Still that didn't spoil my flying time, had an absolute blast  ~~
Gaza07:
07 Aug 2019 19:52:01
ooooh mrs jones  :D
hoverfly:
30 Jul 2019 15:26:34
D.B. you tightwad.. :cool:
atomiclama:
29 Jul 2019 20:14:10
DB that just means you have shed loads of props in the first place ;-)
DarkButterfly:
29 Jul 2019 18:53:33
Just had a thought, even with all the crashing I've done, I haven't bought any replacement props in over a year ~~
ched:
09 Jul 2019 19:45:42
May the sun shine and winds be light for BFU#8. Son't forget lots of vids for those of us unable to attend.  :D
Gaza07:
09 Jul 2019 18:10:30
Hope you all have a great day  :beer2:
Andy7:
09 Jul 2019 14:05:28
BFU#8 details locked in for this saturday - see the head of the forum thread for all details.
hoverfly:
05 Jul 2019 21:51:05
Good for genital warts as well......or so I'm told.. :hmm
DarkButterfly:
05 Jul 2019 21:48:24
Just fixed a busted SMA connector on my TBS unity pigtail, it suffered badly in a recent crash and split in two, nothing a touch of the soldering iron couldn't fix  :D
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3d - Printworx

Printing 3d Forum

something crazy!!

Started by Cozp83, Monday,June 24, 2013, 13:06:30

Previous topic - Next topic

Cozp83

hey guys i got some money to burn and an itch to scratch!

how much weight could four of these in quad configuration lift??
http://www.hobbyking.com/hobbyking/store/__25413__Turnigy_RotoMax_150cc_Size_Brushless_Outrunner_Motor.html

more info soon.........  ;D :smiley: ::) :laugh: ;)
If YOU can fly it, I CAN crash it.

nub

Point and click.

Monkey see, Monkey do.

yama

thats amazing  :o

did you see the video of the guy who mounted it to a hang glider with a custom 27" x 10 prop

ground take off';s im still a little secptical  though of the video.....

ChrisH

2.5Kg and nearly 10KW EACH!!! :frantic:

Four of those you could turn a bus into a quad!!  :laugh:
Chris
Hubsan X4
DJI F450, Naza, GPS, DX8,
Tarot FY680 Naza, GPS, Hero3 Silver, 5.8 FPV with screen
 :england:

Cozp83

yeah the hand glider was what got me thinking.....
If YOU can fly it, I CAN crash it.

SimonS


DarrellW

You would need money to burn with the battery packs you would need for them!
:laugh:  :laugh:  :rofl:
I think..........I think I am........therefore I am.............I think!

Cozp83

im interested in the theory at this stage. ;) ~~
If YOU can fly it, I CAN crash it.

DarrellW

To put things into perspective you would need 4 of these connected series/parallel for 6 mins of full throttle flight.
http://www.hobbyking.com/hobbyking/store/__21374__ZIPPY_Compact_5000mAh_7S_25C_Lipo_Pack.html
That said it would shift one hell of a lot of weight!!!
I think..........I think I am........therefore I am.............I think!

SimonS

Six of those TigerMotors on a Hexa would give you in excess of 100HP!!!!!!!!!!!!!!!!!

Cozp83

that doesnt seem to bad, if i wanted this thing to fly for 45 mins how much/many batteries? i may have the funding to find out...........



Quote from: DarrellW on Monday,June 24, 2013, 18:29:22
To put things into perspective you would need 4 of these connected series/parallel for 6 mins of full throttle flight.
http://www.hobbyking.com/hobbyking/store/__21374__ZIPPY_Compact_5000mAh_7S_25C_Lipo_Pack.html
That said it would shift one hell of a lot of weight!!!
If YOU can fly it, I CAN crash it.

DarrellW

The problem is that with the current battery technology after a certain point things become self defeating; weight or volume becomes prohibitive - the only feasible approach is to come up with a configuration you think might work and then look at the theoretical needs to get it into the air but be prepared to compromise on flight times.
I don';t know how scalable these models are but scaling up based on total power should be a good start!
I think..........I think I am........therefore I am.............I think!

peter_a

It would end up like this :-


DarrellW

That';s about the strength of it, don';t think I would like to be in the middle of all tthose props whizzing around - one failure and instant sushi  :rofl:  :rofl:  :rofl:
I think..........I think I am........therefore I am.............I think!

Cozp83

joking aside, i think i may have blagged the money to build something big enough to sit in the middle of!!
if these motors combined are pushing out nearly 40000 watts they';d have a massive load carrying capability so would a small generator be an option??
If YOU can fly it, I CAN crash it.

Cozp83

right update on the MEGAQUAD. about to go into a meeting with some investors. its the first step to building this thing! wish me luck peoples!!
If YOU can fly it, I CAN crash it.

ChrisH

Quote from: Cozp83 on Tuesday,June 25, 2013, 06:53:49
joking aside, i think i may have blagged the money to build something big enough to sit in the middle of!!
if these motors combined are pushing out nearly 40000 watts they';d have a massive load carrying capability so would a small generator be an option??


A 40 Kw generator is not small! http://www.generatorsales.com/order/Cummins-40-kW-Diesel-Generator.asp?page=6711

3.3L diesel 2000lbs...  :frantic:
:laugh:
Chris
Hubsan X4
DJI F450, Naza, GPS, DX8,
Tarot FY680 Naza, GPS, Hero3 Silver, 5.8 FPV with screen
 :england:

Cozp83

I';ll worry about keeping it in the air when I get to that stage;) lol! Pretty sure thats not gonna be an option(generator)   ;)
If YOU can fly it, I CAN crash it.

Cozp83

What about a smaller generator that keeps the batteries topped up? Like charge as you use? Or maybe two lots of cells with a relay that switches between the charged an the drained  cells?
If YOU can fly it, I CAN crash it.

ChrisH

Even the small 1KW type they use on market stalls are still huge.  :thumbdown:

Why switch between packs, surely parallel wiring would save cost/weight?  :hmm:
Chris
Hubsan X4
DJI F450, Naza, GPS, DX8,
Tarot FY680 Naza, GPS, Hero3 Silver, 5.8 FPV with screen
 :england:

DarrellW

Possibly your best bet is a traction battery, these days you can get one that is substantially lighter than they used to be.
I think..........I think I am........therefore I am.............I think!

Cozp83

good call darrell. at this stage id be happy just to get something this big off the ground. 5 mins hovering will do me;)
If YOU can fly it, I CAN crash it.