10kg Heavy lifter
- Thread starter krleas
- Start date
seattle_helo
Member
Congratulations on the maiden. Impressive @ 20lb. Will be interesting to see the difference at 5S!
mitmit
Member
and practice says even more definite no) for max efficiency you need to increase prop SIZE and DECREASE pitch. increasing pitch plays only good for lower props in coaxial schemes, where airflow is already speeded up by the top prop.
krleas
FPV Freak
4 kg payload, hover 110 amps.
This lady dont know what payload is. Lets go further.
http://vimeo.com/34295014
This lady dont know what payload is. Lets go further.
http://vimeo.com/34295014
Interesting...
... I'm just swell thinking about the right engines for a SkyJib 8, want to run it at 5s with Hercules boards. The Axi 2826/12 seems to be to weak for heavy duty applications, the 4120/20 get's to heavy. Both Axis seem to be a little bit inefficient.
The Orbit 15-20 look promising, but you have to wait for 8 weeks to get them and the are quite expensive. Any suggestions?
... I'm just swell thinking about the right engines for a SkyJib 8, want to run it at 5s with Hercules boards. The Axi 2826/12 seems to be to weak for heavy duty applications, the 4120/20 get's to heavy. Both Axis seem to be a little bit inefficient.
The Orbit 15-20 look promising, but you have to wait for 8 weeks to get them and the are quite expensive. Any suggestions?
Pano-Dirk
Member
One does have to ask the question of Why. A conventional helli 800 size electric. wins hands down on efficiency. and cost.
40 min. flight easily achieved with a 5D. plus a good camera mount, telemetry etc. The proven heavy lift workhorses of the industry
More evolution in the design and reliable. The more rotors you have the less the lift efficiency, Cast in Stone and you can't change it.
But probably not so much fun to build but you can also have Ace one.
40 min. flight easily achieved with a 5D. plus a good camera mount, telemetry etc. The proven heavy lift workhorses of the industry
More evolution in the design and reliable. The more rotors you have the less the lift efficiency, Cast in Stone and you can't change it.
But probably not so much fun to build but you can also have Ace one.
Last edited by a moderator:
MombasaFlash
Heli's & Tele's bloke
Have to agree with most of that, except for the above. Personally, building and working on multi-rotors annoys the hell out of me and flying them is a joyless experience.
However, as a tool for AP one cannot help but appreciate the inherent design advantages that enable more easily achieved level-horizon stability, relatively stress-free 'automatic flight' and of course, the reduced maintenance schedule is also wonderful.
Broadly speaking, single rotor heli's still give me a buzz but AP can be a challenge, whereas these MR's leave me cold but AP is a breeze.
Having gone full circle from massive Oktos with many confs. that could lift more than 20 kilos. the Penny finally dropped and MR's do have a place. For me they have to be small and transportable. float on water and have full prop. protection. Have same stability in the wind as in the calm. And be able to operate as a one man show. Fortunately cameras are also set to get better and smaller so it all comes together nicely.
My 2 cents worth.
My 2 cents worth.
matwelli
Member
I'm coming around to the same idea, my only multi at this stage is a 1.3 kg quad, and I can fly that anywhere without concern. With a 5kg octo, every flight had a pucker factor, and always aware of what could happen when that 5 kg decides to come down unplanne
The new go-pro2 looks good, and won't be long until there are a bunch of sub 200 gram cameras with decent quality pics
Mat
That's where the smart money is. Doubt that the retailers would want to hear this, OKTO's are big business. The bigger, the more money they make. Weight is the enemy. Weight ratio to size is where it is at. IMHO
Last edited by a moderator:
