What can I say - I was hopelessly wrong and I am ashamed. I will now ground my fleet pending investigation.I am sorry to say - you are wrong !!!
I am not sorry that you are getting a little bored, because I did not write my previous post to entertain you or amuse you - I wrote them because what your comment in your post were wrong and confusing for the user that had a real life problem.
The Inspire 1 will not fly above 1-2 feet (because of the ground effect) in any way or circumstances if the total weight is above 5.500 gram !!!
As I wrote earlier the way is not to calculate it but to test it in real life - and that is exactly what I did yesterday.
The wind was moderate 6-7 m/sek (13 - 15 mph) the temperature 10 degrees (50 fahrenheit) and it was 91 meter over sea level ind Denmark.
The Inspire 1 (with my configuration) weighs 3.388 g. including the 4 meter line i used to this test.
The battery (TB48) was fully charge and have only been had around 15 cycles. I used brand new props.
View attachment 5129
I used a helping hand and a precise fishing scale. I was upside down so the Inspire 1 not had to lift the wight of the scale also.
With full throttle it was maxout at 2.055 gram. But most readings was about 1700-1800 gram.
It was not possible to get continuous scale readings due to the circumstances with wind gust and a helper that was fighting to holde the scale steady so the scale never logged on a number.
3.388 g + 2.055 g = 5.443 gram max lifting power.
A note is that even that I have way over 100 hours flying with the phantom 2 and inspire 1 and I am a approved commercial drone operator in Denmark, it was very,very hard to fly the inspire 1 with full throttle - it was all over the place.
So Editor, I actually don't care about what your OPS manuel says or how you make your calculations.
If your take off weight is 6.218 gram your inspire 1 will not lift 1 inch off the ground (even with help of the ground effect.)
A realistic MTOM ought to be 5.500 g, or more likely 5.300 g and with that take off weight you will properly not be able to controle it because all 4 motors is maxout. But again I don't care if your OPS Manuel is wrong, that is your problem not mine.
That sounds like a good idea. It is ind fact pretty simpel. The more weight you make your Inspire 1 carry the shorter flying time you will have, and more difficult it will be to controle. My advice would be to keep it under 4.000 gram and try to fly it when there is very little wind. Good luck with your project - look forward to se what you can make
I used a helping hand and a precise fishing scale. I was upside down so the Inspire 1 not had to lift the wight of the scale also.
What can I say - I was hopelessly wrong and I am ashamed.
I will now ground my fleet pending investigation.
my calculation out by 775grams!
Maximum takeoff weight - Wikipedia, the free encyclopediaMTOW is the heaviest weight at which the aircraft has been shown to meet all the airworthiness requirements applicable to it
I do wish you lots of enjoyment flying things around dangling on a piece of string though
It's hard to take anyone seriously who uses his phone in the vertical position to shoot video.
Inspire 1 - DJI Wiki
Matrice 100 - DJI Wiki
Just to put it out there, the officall wiki on the Matrice says MTOW of 3.4kg
if we apply that to the I1, assuming the same motors, and that their wiki is poorly written in english, we have just under 1kg of potential payload.
Inspire 1 - DJI Wiki
Matrice 100 - DJI Wiki
Just to put it out there, the officall wiki on the Matrice says MTOW of 3.4kg
if we apply that to the I1, assuming the same motors, and that their wiki is poorly written in english, we have just under 1kg of potential payload.
There is an awful lot of misinformation about what the Inspire will and won't lift.The payload rating for the Inspire which is in numerous ops manuals and lodged with the CAA is 3,400g with an MTOM of 6,218g although I would not want to fly it with that loading and flight times would be severely impacted.
However, it WILL fly at those loading and is within spec so would not overload the propulsion system. I would image it would handle like a pig.
What the hell is a 1/2 VHS deck doing on your desk other than watching old porn movies?L.P. you could check out the link and get some lighting ideas from this guy instead of the extra weight your strapping on, and, you can out's the bungee cord. Worth taking a look'c. Dji drone LED Light, Phantom 4 , Inspire 1 & 2
Rodger that, just things to consider. For one, what are the consequences of having batteries (inside the light) so close to the electronics, and too, the extra weight on the top of the AC? Balancing issues? Just a thought.VHS is there for old times sake. I never throw anything away. The light is on with 3M heavy duty fastener, the bungee is redundancy. Yes there are lots of lights out there, but as an excop, already had the tac light....Only concerned about weight and stability.
It's definitely possible to build a bird with strong light source for night surveillance. Inspire 1 airframe, however, doesn't seem to be the best choice due to relatively low payload overhead. I mean, of course she will lift a plenty of extra payload, perhaps 1000 g, but for a very limited period of time (10-15 min) and with screaming props. For such mission I will opt for something within Matrice 600 range.My bird always balances tail heavy...adding the light only helped it a bit. The battery closeness is a good point I'll have to do a ground test and check...Thanks.
It's definitely possible to build a bird with strong light source for night surveillance. Inspire 1 airframe, however, doesn't seem to be the best choice due to relatively low payload overhead. I mean, of course she will lift a plenty of extra payload, perhaps 1000 g, but for a very limited period of time (10-15 min) and with screaming props. For such mission I will opt for something within Matrice 600 range.
Yes, very impressive indeed! I think you can get along with just one spotlight of this power easily. Curious how long your batteries last? Another idea: how about using Oly 45mm lens for such missions?Agreed. I have to use what's on hand, not what I wish I would have. Law enforcement agencies have a bigger budget than I do. This is just a proof of concept demo. Flew the test tonight with 2 spotlights at 4264 grams. Very windy but no stability problems at 60 feet. Need to pay more attention to focus. The cop with me was very impressed.View attachment 12218
The way LEDs/COBS are being updated/refined it's not going to be long before a pee size COB will have the lumens of 3/1000w HPS.....keep inventing! Oooops, forgot the weight on the heat sinkAgreed. I have to use what's on hand, not what I wish I would have. Law enforcement agencies have a bigger budget than I do. This is just a proof of concept demo. Flew the test tonight with 2 spotlights at 4264 grams. Very windy but no stability problems at 60 feet. Need to pay more attention to focus. The cop with me was very impressed.View attachment 12218
In ten years Ehang-184 will be old news, just wait will you see the sleek 4 seater 190 in the driveway, OH MY what a beauty!!! Did I just say driveway? I meant to say the E-helo pad on the roof, comes extra, not included.Look where we are today, it excites me to think where we will be 5-10 years hence!
"Sometimes it's the very people who no one imagines anything of who do the things no one can imagine." (The Imitation Game)
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If I'm using the piggyback adapter that slides over battery terminals and brings an xt60 connector to the outside and then use a y splitter to 2 11.1v batteries do I also need to wire them in series too?
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Dob,Yes, very impressive indeed! I think you can get along with just one spotlight of this power easily. Curious how long your batteries last? Another idea: how about using Oly 45mm lens for such missions?
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