szuu wrote:You could dump the camera battery and power the camera from the drone battery (through a regulator), this should save some weight.
eballesq wrote:szuu wrote:You could dump the camera battery and power the camera from the drone battery (through a regulator), this should save some weight.
Yes it would. Enjoy your 90-second flight.
szuu wrote:eballesq wrote:szuu wrote:You could dump the camera battery and power the camera from the drone battery (through a regulator), this should save some weight.
Yes it would. Enjoy your 90-second flight.
If the gopro battery can work for 2 hours but you only use 10 minutes (imposed by drone), then 90% of the battery weight is pure ballast, like if you attached stones to your drone, extra weight without any gain. Therefore, getting rid of the battery (or using a smaller battery) should increase the flying time.
Powering the camera from the main battery of course decreases the flying time, but how much power would be actually "stolen" in this scenario? Assuming the camera battery has 33% of the drone batt energy (single cell vs 3 cell), and gopro would use 10% of this energy (10 minutes out of 2 hours capacity), it only makes 3% of the drone battery capacity - (small) price for reducing a (small) ballast... I won't bet it would actually decrease or increase the flying time - but the stability should be better anyway.
It's a pity the battery is so lightweight, so the savings can't be huge, but it seems that it's similar to the weight difference of outdoor/indoor hulls, funny thing because the original question suggested that the outdoor hull+gopro is almost acceptable and the main problem is the indoor ("safe") hull.
MojoTojo wrote:is there a battery that is smaller/lighter and has same power as the default batt on the drone?
proponents of the technology expect lithium-air batteries to replace the lithium-ion batteries currently powering portable electronic devices. Lithium-air batteries have the potential to have 5-15 times the energy density of current lithium-ion batteries. Thus even the most conservative estimates indicate that a modern-day lithium-ion battery may someday be replaced by a lithium-air battery 1/5 the size or a lithium-air battery with a lifespan 5 times as long
The arDrone 2.0 lift pretty much exactly the same as the 1.0, same battery, same motors, same props... (nicer gear which is smoother yes but no real gain.)
I have flown it maybe 2-3 hours with GoPro and replayXD, without a doubt, the lighter and also skinnier replayXD flies better. as it is closer to COG.
The new total control concept with the iPad is fantastic, ideal for video shooting because you can keep a angle and slowly pan the camera. on top of that set the drone max tilt angle to some low value so it can not get a high speed which keep it stable and smooth for video.
Love the idea of after-market batteries, use a slightly smaller capacity and you may end up with maybe half the battery weight.
Here is the kicker, while flying the arDrone with the indoor body is going to be a stretch, flying in a indoor mall, is the single best place to pull that off as there is going to be virtually no wind and only very slow air currents in general.
The indoor mall scenario may actually also make the GoPro2 work for you, as outdoor you are likely to get jello from the GoPro2, the Gopro1 and the replayXD is far better outdoor on the arDrone in terms of jello. also the GoPro2 is the best night camera of the bunch, so you have a better chance of looking good indoors.
Hmm. thinking I should go grab the indoor hull and do a test. this might just work out of the box.
Just my 2 cents.
I would not use any of these cameras for night. You need a lot of light to get a crisp image. Even with the low light feature that you can select with the go pro, its still very poor when the sun gets too low.
I will post a video up shortly of my go pro hd (version 1) with just some styrofoam 4 rubber bands 3 pieces of electrical tape and some wall mount tape made literally no vibrations. the degree of which was point at almost 30 degrees downward in R4, you can still see the rotors the engines slightly.
arDrone 2.0 GoPro mount http://www.shapeways.com/model/560889
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