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« on: October 09, 2012, 11:35:22 AM »
vineet
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last month i and my friends were flying quad NAZA GPS enabled worth (more then 600$) and that was a nice evening with little  bit of wind. we were enjoying and testing our hands on the quad , it was a very good machine ,i did some hovers and fly here and there for 3 to 4 minutes , the battery was old 1800 mah
3s  ,i assigned the low voltage system on naza for 10.8 v with 0.8 load , this will take naza quad automatically on ground when the battery get low from this ,

suddenly i tried to take my quad to a little bit height of less then 30 mtrs , and then after that when i tried to pull it down , it did not react with the radio functioning and starts to climb  in the sky and get tilted in 1 direction and starts moving away at to south direction at the same time , the area where it went was very crowded we could not even see it after 1 or 2 minutes as it went very much high and far ,


then we went to that area immediately, asked 100 of people no body have  a clue of it, Sad Huh?. in coming weeks we went to more depth area a still no signs ,the area is so big that we cannot go through every street of it and even we do not have any idea that how far it went as the battery was almost 70%  there when it lost the signal .

then i tried to calculate the distance for S=D/T and found that  it should go some where near to 4 km , if i can have some idea of it by doing some math that would be very helpful.

 i post it because i really want to  know about what you guys think and if i can get help by math .

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« Reply #1 on: October 09, 2012, 12:08:26 PM »
SphereHobbies
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Vineet

Sad to know your quad story. To help understand the problem, if you like, please share what was GPS switch position, make and model of radio, LED signal at the time of departure/take off, your NAZA programming details etc..

This would help understand how and what went wrong. It is strange that radio did not respond. Was fail Safe programmed?

Do share more details please.

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« Reply #2 on: October 09, 2012, 03:40:07 PM »
vineet
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i always fly on gps mode , regarding programming i was perfectly flying it , i did all the basic things , there was a very good position hold as i had more then 7 satellites (green light only on pmu) locked.

Radio: turnigy 9x.
Position of GPS switch time you lost the bird = already told you it was on gps mode
Fail Safe = no
« Last Edit: October 09, 2012, 04:04:26 PM by vineet » Logged

 

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« Reply #3 on: October 09, 2012, 03:58:44 PM »
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Vineet

We are still missing the details here.
Radio: make and model.
Position of GPS switch time you lost the bird
Fail Safe?

Just trying to understand what went wrong.

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« Reply #4 on: October 09, 2012, 07:39:06 PM »
saikat
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If you live in a residential. Area go to your local cable tv operator and put a missing
Ad also do the same thing with the local fm station .... should not cost very much
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« Reply #5 on: October 09, 2012, 10:56:56 PM »
vineet
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good option , but the cost estimation is not what you think , i even called up all the guys from local tv , the cost they are demanding is not feasible .
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« Reply #6 on: October 11, 2012, 05:06:29 PM »
Dharmik
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Please have a look at this topic
http://www.rcgroups.com/forums/showthread.php?t=1696525
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« Reply #7 on: October 11, 2012, 07:04:18 PM »
dreamfly
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I guess one important lesson to b learmt here:  dont take technology for granted!!!!!.  If it has to fail ...... it will.  its just a matter of when.
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« Reply #8 on: October 11, 2012, 07:49:59 PM »
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All said and done ......... it is most likely that somebody must have stolen it and sold it to someone
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« Reply #9 on: October 11, 2012, 07:54:36 PM »
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But if it is still out there with someone it should be returned to it's rightful owner.  It's probably just a matter of when.
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« Reply #10 on: October 11, 2012, 07:59:06 PM »
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I just have 1 question to vineet
What sort of locality were you flying your plane in?
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« Reply #11 on: October 11, 2012, 08:04:06 PM »
dreamfly
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I had a word with Vineet recently.  if anybody here is using a Naza,......  at the slightest indication of a radio glitch, such as a lost signal or something like that,  I suggest you have a look at your radio.  Also avoid using basic radio equipment on expensive stuff such as the naza.  There's always a difference in quality vs price.    Turnigy with HK board ... No problem. 
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« Reply #12 on: October 11, 2012, 08:57:30 PM »
Dharmik
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All said and done ......... it is most likely that somebody must have stolen it and sold it to someone

Yes, i am sure someone has stolen it. These thing looks attractive that nobody can resist, even they don't have knowledge of RC.
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« Reply #13 on: October 11, 2012, 10:54:54 PM »
vineet
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I guess one important lesson to b learmt here:  dont take technology for granted!!!!!.  If it has to fail ...... it will.  its just a matter of when.

yes you are right donot take technology  for granted ,ok if some body have stolen it or may be tried to sell it online we all will have a notification for that if anybody try to sell it online as we are the member of the largest forum in india . But would like to tell you all that if it is a simple case of landing the quad on anybodies roof  he must be waiting for the owner , i have even announced the reward on the recovery and i have printed 1000 posters . i have not covered the entire areas it is so big , that is why i am requesting here for some maths so that i can be helped .
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« Reply #14 on: October 12, 2012, 09:03:15 AM »
lastRites
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I do not think any amount of maths would help you if you were flying in a crowded locality. Sad Did you lodge a diary at the local police station? Whenever you fly something in a public place put a sticker on it with your name and contact details. Offer some "reward" if someone finds it and returns it to you..
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That form ever follows function. This is the law.
 

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« Reply #15 on: October 12, 2012, 09:21:47 AM »
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I have an idea, it might help us to get it back. It's kinda CIA stuff, instead of inviting suspect to come and surrender you will have to go to the doorstep first. But for that we need satellite image and coordinates of that field and last known direction and all details in which it flew away so we can trace complete path. Please check this topic. The guy lost control during fast ascend and his quad flew away. Later he found it. Check last image which shows complete path.
http://www.rcgroups.com/forums/showthread.php?t=1616330
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« Reply #16 on: October 12, 2012, 11:14:50 AM »
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Vineet, if you could mention the locality around which you were flying, I am hopeful a lot of people on the forum, living close to that area would be willing to ask around. I am happy to do that. Also if you have a picture of the quad, I will be glad to have it posted on my facebook wall and have it shared. We might be able to trace it.
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« Reply #17 on: October 12, 2012, 03:55:43 PM »
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Did you lodge a diary at the local police station?

Are you kidding? I think he'll be inturn asked to forget the quad or be informed that flying a UAV was 'prohibited' or in the least will have to answer a lot of straight and annoying questions. (MHO)

To Vineet : Did you lose your line of sight? I remember reading on RCG that someone who was flying his DJI-controlled quad in the woods lost the line-of-sight and lost the quad. But it was traced by the police later.
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« Reply #18 on: October 12, 2012, 04:50:26 PM »
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I can answer this:  The quad seems not to reciprocate to any radio commands and just decided he wouldn't listen to anything and flew away.  So the whole Return to home and GPS  shit never even triggered. 
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« Reply #19 on: October 12, 2012, 05:18:32 PM »
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yea the GPS thingy is shit have seen quite a few other Gps thingies not coming to work at times
« Last Edit: October 12, 2012, 05:43:17 PM by anwar » Logged
 

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« Reply #20 on: October 12, 2012, 05:26:42 PM »
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do you fly the Naza?
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« Reply #21 on: October 12, 2012, 06:06:55 PM »
theflyer
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do you fly the Naza?

Nope but seen it getting lost but luckily the battery was quite low so didn't fly far about 250 m off the ground we were flying on
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« Reply #22 on: October 12, 2012, 06:09:05 PM »
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ya of cource
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« Reply #23 on: October 12, 2012, 06:18:31 PM »
dreamfly
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I know the nervousness u guys who are flying the Naza must be going through.
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« Reply #24 on: October 12, 2012, 06:51:37 PM »
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The only problem that i have experienced is at times it stops respoding for some time don know why. Lets just hope the best for vineet
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« Reply #25 on: October 12, 2012, 07:12:06 PM »
dreamfly
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Mine worked flawlessly.  Which Radio do you use?
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« Reply #26 on: October 12, 2012, 08:30:11 PM »
vineet
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guys thankyou so much for the reply, here some more details

i started flying it with 1800 mah lipo old not much of flying time as compared to new one , after flying it for 2 3 minutes i tried to take it up some altitude and then it starts going to the south direction and started gaining altitude like hell , i cannot approach it as i had a serious injury in my leg(5 stiches ) , i was just looking at it till it disappears , i donot know but it was like near to a km , i was using turnigy 9x ,  there was a good cross wind towards north

regarding maths

i think

let say it fly further 5 minutes

speed is 50 km/h(got the speed from a guy on youtube)

distance should be = 4.1km {please correct me if i am wrong) s=d/s

attaching google pic

untitled.jpg
Re: lost my quad.
* untitled.jpg (126.97 KB, 800x600 - viewed 549 times.)
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« Reply #27 on: October 12, 2012, 09:43:55 PM »
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Information sharing improves knowledge of both.



Very sorry to here this. Pray for fast recovery.
Vineet, what battery in your Tx ? And the battery voltage ? (Possibly new one or fully charged one.  Poster Idea is the best and if fails, just arrange to make quad classes free registration in any school. The culprit surely register there.
And don't even think of police. They misuse the rules than using it.

And it may be rest over anyone's roof unknowing to all. But it it just falls from that height, does it survive ? For LiPO ? or it went back to home.
What was the angle it flown away, is the factor for calculating the distance. And the height too. But Turbulance in higher altitude is so much that calculation may fail.
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« Reply #28 on: October 12, 2012, 10:33:32 PM »
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You know doing this math is quite good but again as i have told you earlier it depends on the person it is with and even the
And the height too. But Turbulance in higher altitude is so much that calculation may fail.
I also did my homework and found out that 30 mtrs height may have wind turbulance if your quad was light which it is it may be out.Well it depends on the place you were flying at so if you flying in a high wind prone zone it is likely that you're maths wouldn't work at all if it if you were in a lesser wind prone area its likely your maths is correct hope you find your quad
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« Reply #29 on: October 20, 2012, 12:59:57 PM »
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Could this one of those.  Although it dosen't say NAZA gps
http://www.dji-innovations.com/compass/submit_rma/?utm_source=dji_web&utm_medium=homepage_kv&utm_campaign=compass_firmware_bug_form
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« Reply #30 on: February 24, 2013, 01:26:55 PM »
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I suggest at least put your cell number on all flying models with a request that finder please call this number. Maybe there are are some nice people out there !
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« Reply #31 on: February 24, 2013, 06:33:07 PM »
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Hello All

We all are sorry for the lost quad. How about digging the problem how it happened. We are asking this question again. Lets understand the programming part.

Can we get the entire story? Please explain how the programming was done? Your story would certainly help new flyers.

We have been flying and testing NAZA and GPS since its release. NEVER had problem !! Not even one to doubt the technology.

And now the insurance company has also trusted this technology (by providing insurance for DJI products.)

We wish you good luck for recovery.

Sphere Hobbies
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You can trust the radio so much until your first crash with it.
 

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« Reply #32 on: February 25, 2013, 12:40:52 PM »
dreamfly
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Insurance Coverage!!!  Interesting to know.
What's covered?  entire Quad?  FC?  Props & motors? Lipo
Which insurance co in india is covering this?   Good to know?  Thanks for the info.
Also whats' the premium?
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« Reply #33 on: February 25, 2013, 05:41:24 PM »
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@ dreamfly

The insurance covers the equipment and public liability. To avoid negative effect on the newly started policy, we are not declaring the name of insurance company.

We do not want that people with less experience and negative motive should get benefits of this policy and we fear that too many claims would force the insurance company to stop coverage.

The annual insurance premium is 4-5% of sum assured. If you have more questions, please post it on following thread. We do not want to divert this thread.

http://www.rcindia.org/rc-general-topics/insurance-for-aerial-photography-equipment/msg130440/#msg130440

Regards,

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« Reply #34 on: March 05, 2013, 04:41:05 PM »
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turnigy 9x is a crappy radio, watch this video.

 Bang Head
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« Reply #35 on: March 05, 2013, 04:57:27 PM »
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Aditya, sorry for the loss. T9x should be castrated off the stock RF module and refitted with the FrSky. I hope HK starts doing that in the factory, atleast for the 9xr, given that it already has a port to the er9x
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« Reply #36 on: March 05, 2013, 07:28:49 PM »
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didnt get the video Huh??? its still....
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« Reply #37 on: March 06, 2013, 12:07:45 AM »
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sorry for that video, was going to show the radio and frsky module at the back but i forgot to do that
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« Reply #38 on: March 06, 2013, 12:08:25 AM »
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true that sir!
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