30 Min flight time whit fully packed octo

S

Sebas600

Member
So the story is the following.

I was contacted by a friend of a friend who has a business in renting out al kinds of stuff.
He needs three octo's that can do the following:

cary on a 2-3 kg camera
360 degree pan/tilt gyro stabilized
have a live HD cam feed (3km and 100% no interference)
Fully automated operation via PC, waypoint etc
And yes you've read correct a flight time of 30-40 min!!!!

So anyone have any great ideas? budget goes around € 10.000 + (each) or something like that.

Skyjib 8
retract gear
?AXI 4120/14
MK carbon props
?360 XXXXX gimbal (needs to be super fast, no jitter, hunting or what ever)
?HD live stream
MK hardware
Hercules II
Stack lipos 50.000mah:cold:
 

Macsgrafs

Macsgrafs

Active Member
Thats one tall order for 10,000 euros!!!!!
The mount is going to be your hard part....good luck with that one!

I have an SJ8 running 2820/07 motors & 60A ESC's, with MK flight gear. From 2 x 4000ma 4S lipos I get 5 mins tops. With 4 x 4000ma 4S lipos I get...yep, 10 mins. So if I read you correctly he is thinking 50,000mah lipos? Thats 12 of my 4S lipos in parallel, that will give you 30 mins. (6.68KG in lipos weight alone)
HD lie video downlink, requires a specialist transmitter as it needs wider bandwidth than SD...maybe 5000 - 7000 euros for that alone!
3KM counts out any navi by MK, i think they have a maximum radius of 500mtrs for the commercial unit!

Ross
 

Bartman

Bartman

Welcome to MultiRotorForums.com!!
the frame i'm building can accommodate four lipos, up to 16" props with a small change, a 360 degree pan AV200. the 3km requirement can probably be done but the automated operation is questionable. do you have more specific information on what he's trying to do? the camera weight estimate is 4 to 6.5 lbs? i don't know if any video transmitters can stream HD video.
 

Bartman

Bartman

Welcome to MultiRotorForums.com!!
i forgot to mention, my rig will fit on the backseat of a compact car (Honda Civic for reference) fully assembled.
 

DucktileMedia

DucktileMedia

Drone Enthusiast
who would really want to fly for 30 minutes anyways? My hands are trembling after 5 min.

And Yes, Bart's frame is awesome!
 

S

Sebas600

Member
Macsgrafs said:
Thats one tall order for 10,000 euros!!!!!
The mount is going to be your hard part....good luck with that one!

I have an SJ8 running 2820/07 motors & 60A ESC's, with MK flight gear. From 2 x 4000ma 4S lipos I get 5 mins tops. With 4 x 4000ma 4S lipos I get...yep, 10 mins. So if I read you correctly he is thinking 50,000mah lipos? Thats 12 of my 4S lipos in parallel, that will give you 30 mins. (6.68KG in lipos weight alone)
HD lie video downlink, requires a specialist transmitter as it needs wider bandwidth than SD...maybe 5000 - 7000 euros for that alone!
3KM counts out any navi by MK, i think they have a maximum radius of 500mtrs for the commercial unit!

Ross
Click to expand...

Raising the budget then to € 20.000
 

S

Sebas600

Member
Bartman said:
the frame i'm building can accommodate four lipos, up to 16" props with a small change, a 360 degree pan AV200. the 3km requirement can probably be done but the automated operation is questionable. do you have more specific information on what he's trying to do? the camera weight estimate is 4 to 6.5 lbs? i don't know if any video transmitters can stream HD video.
Click to expand...

That's a nice one then. do you have some further specs Bart?
 


S

Sebas600

Member
IrisAerial said:
who would really want to fly for 30 minutes anyways? My hands are trembling after 5 min.

And Yes, Bart's frame is awesome!
Click to expand...

That is why it needs to have simple waypoint computer control. the idea is that two copters will relieve each other so filming can go on for hours.
 


Bartman

Bartman

Welcome to MultiRotorForums.com!!
Sebas600 said:
That's a nice one then. do you have some further specs Bart?
Click to expand...

i'm in the process of building out three examples and can discuss this with you offline if you'd like. i haven't been too chatty about this as i'd prefer to have the capabilities demonstrated by doing rather than by talking. what i'm building right now are three coaxial quads each with my new camera mount attached. the mount is set-up to be optimum for a T2i with the 10-20 lens but will also have mounting holes for the NEX and GH-2 cameras. there's a spot on the mount for a GoPro as well while any of the other cameras are also on there.
to do what you're talking about, we'd have to spec out the motors and props, configure the arm lengths and motor mounts, and then just make sure the camera mount and gear legs are strong enough for the equipment load. I could probably find room for up to nine battery packs but we're talking about a few iterations of the development process to ensure safety with all that weight. the camera load would probably have to be compromised but we wouldn't know until we begin to make decisions about specific tech requirements and hardware selections.
 

Bartman

Bartman

Welcome to MultiRotorForums.com!!
Sebas600 said:
Haven't heard yet. waiting on the whole lot. spoke to him on the phone yesterday. he says he found a German company that could deliver this 30-40 min octo. I'm waiting on some more info about that.
Click to expand...

but could you put two of them side by side on the backseat of a Honda? :)
 



S

Sebas600

Member
Haven't heard anything. just asked my friend to contact him. I upped the blimp idea but he doesn't want that. and they aren't great in even the smallest of winds.

altitude will probably be 300 max above ground level due to regulation, will be used all over the world
 



D

DennyR

Active Member
30 mins. Ha Ha. This I have to see. Spiraling temps and costs is all I see ending in total failure. It's called the law of diminishing returns.

Gas heli is the only way. Unless you are going to change the laws of physics like so many others have tried to do.
 
Last edited by a moderator:

?

*****

Guest
for full HD transmission the set is 18000 euro,s just for the video link , since i guess your friend wants no or less then 200ms latency i guess.
the less latency the more euro,s.
vislink makes these , i visited the IBC this year and cheapest one i found was 15000 give or take...

now we use a unit that is used with bomb disposals robots from Rotoconcept.
the set contains a COFDM unit with rather bnc or RCA input , has mpeg 4 decoding uses high resolution.
plenty for TV broadcast but NOT full hd.
the set is about 5000 give or take.

for law enforcement we use a pelican case with build in PC embedded , waterproof can stream live data to iPads or iPhones.
it runs win xp in a " naked" version.
the range is about in nlos 2-3 km and los 5-8 km.
the TX works on 2,4ghz uses 5mhz on bandwidth with 50mw and a whopping 25 Db.

30 minutes is possible did that , but the risk is big , that is a expensive machine.
if you have a budget of 10000 no way...

a machine like that would sell for about 26000.

but i guess if you build it for free and a margin of 1% and no guarantees you would be able to do it for less.
as far as legal implementation :

illegal to fly above 100 meters
no flying over crowds
can't imagine seeing that 12 kilo aircraft dropping on crowds from 300 meters up.
we strongly recommend to ALL our customers to NOT fly over crowds , and keep the max elevation in mind.
officially its not even allowed to fly in urban city,s.
there is a new law in the making in the netherlands that WILL come to live , and will ban anything without official approval.
 
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?

*****

Guest
DennyR said:
30 mins. Ha Ha. This I have to see. Spiraling temps and costs is all I see ending in total failure. It's called the law of diminishing returns.

Gas heli is the only way. Unless you are going to change the laws of physics like so many others have tried to do.
Click to expand...

well it surely a money pit , the temps i don't worry about anymore.
its the huge weight , but then a gas heli will do easily 25 kilo,s with that setup.
and i rather see a 12x3,8 blowing up then a 2,5 meter rotor at 900 rpm,s falling of ..
 

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