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Today I wanted to see if I could brake my old height record:

VIDEO ON NEW LOCATION

it is in 320x240 windows media format, 64MB.

The distance to the place where I fooled arround = 1500meters.

plane is a 120cm ving, video TX 2.4GHz 500mW

RC is 433MHz 250mW homemade

I had 5-10 spotters on the ground trying to help me out,

looking on the plane and directing me home, but the small plane and large distance made it almost impossible for them to see the plane, even with binoculars !

at 300m height it is really hard to control it visually,

but by using video it is super easy, the biggest problem is now navigation,

and not getting lost.

solution : gps data back link and tom tom navigator

Edited by ThomasScherrer

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Thomas, Now that was an incredible video! I could not stop smiling - your sub-titles are what really made it. :D:D

Lachlan

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hehe yes, I am sorry the speach is in Danish so I figured you needed some help,

but can you hear and feel my fustrations and anger ?

I ask several times, where is it ? and where to go to get home,

and so on, I got a few bad suggestions, and ignored a few good ones.

several times I said to my self during that flight: how stupid are you !

hehe. It took a while before I could fly another plane that day,

and it was not at all funny, no thrill, almost borring.

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Seems you don´t have pan & tilt on your camera. It´s quite useful for high flights.

In the video you keep climbing without looking at the ground to get references. It´s is vital that as you climb look to the ground to know where you are, and also to check your area with goolge earth, and know every tree of your field helps.

The idea of using spotters with binoculars is great, but not enough as you have seen.

Great you didn´t miss it, good video and lots of info on your osd. How much weights?

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>How much weights?

on what ?

the plane is a 900 grams , 120 cm wing,

plane number 9 on this link:

http://www.webx.dk/rc/rc.htm

004-hi4.jpg

the OSD is 10-12gr I guess, THAT OSD is not only OSD but a compleete

unit that measures and calculates all you can imagine,

you can see the board and info here:

http://www.webx.dk/rc/video-wireless/video-osd.htm

the powersupply is an erly prototype,

I think the camera is the most heawy item, 27gr

I am sorry I dont have a weight breakdown,

due to I am using such an over powered plant as my experimental tester.

so I have no worries about 20-40 gr more or less.

today I purchased a 2meter plane with 3kw electric motor,

a greatplanes "ultra stick light" so now I can go even futher in my quest for

experiments with on-board electronics and stuff.

Edited by ThomasScherrer

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Hey ThomasScherrer

That was scary !!!!

I have been in that same situation 3 times, 2 were my fault, and the 3rd time the video battery went dead, a could only hear the sound but not video at all, and I was by myself, and no idea wehre my plane was, I was flying using the sound of my motor, everytime the motor increased the RPM I new my plane was going down and I have to pull it up, it took me maybe 1-2minutes flying that way, and I finally I was able to see my plane through a little gap over my goggles, and than I took the goggles off, and landed, That was a very scary moment.

Like wavess said, fly in circles first, looking around, gain altitude flying in a pattern always check for landmarks, find at least 3-4 land marks, and then the higher you go, the easier it will be to find better landmarks, and always check the area with google earth to find ground references before you go fly.

I was very nervous watching you getting lost, and I felt better when you found your way home.

I am glad you made your way back.

Edited by wilson

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exactly wilson,

now it is easy to sit back and think about all the things I should have done,

did you hear the crowd cheering in the background ?

maybe the soundtrack is even better than the video :-)

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the video is online again, on a new location, thanks to Kilrah.

enjoy, listen to my voice and hear my fustrations.

Edited by ThomasScherrer

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Hi Thpmmas

Very scary video effectively, I was nervous when watching the video, remembering last summer when I was lost over the Bromont Golf club for one minute, normally I don't have problem to recognize where i take-off, but over the golf, everything was looking similar... I remember the mountain was back from me when I launched the planes, so I flown in direction of the mountain, and saw my car.

But for high altitude flight, you need only tilt for your camera, you will oftenly take a look at the your feild and see what it look from the sky, while you gain altitude, you see easily where you must go to land.

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Hahahah - ugens grin :D

Du lyder noget bekymret da du begynder at sige "Hvor er jeg henne, var!"

Du skal da have lavet det GPS radio downlink på audio kanalen, så du kan følger den på Google Earth :D eller et luftfoto, har selv gjort det samme for 1 år siden.

(Fik dog ikke lavet et ordentlig downlink - bare noget fusk med en 433 MHz ringklokke)

Hvad med en en lille indscannet kopi af ICAO kortet over jeres spot?

(Så man kan se veje, jernbaner, osv - man kan følge)

Har engang været lige ved at miste navigationen i en ultralet,

lige før det blev mørkt.., så gælder det om at følge de store veje, og finde hjem igen, så kender godt føelsen lidt :)

Her er en GPS navigator et must!

To others:

Just taking danish with Thomas "nightware clip" hehe

Cheers,

LoopForEver

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det ER løst, nu har jeg en pil på OSD'en der pejer hjem,

but arcording to the rules of this forum, I guess it is not allowed to use any other languages than English, or to talk private.

it's normally considered rude in forums to do so.

Edited by ThomasScherrer

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Today I wanted to see if I could brake my old height record:

VIDEO ON NEW LOCATION

it is in 320x240 windows media format, 64MB.

The distance to the place where I fooled arround = 1500meters.

plane is a 120cm ving, video TX 2.4GHz 500mW

RC is 433MHz 250mW homemade

I had 5-10 spotters on the ground trying to help me out,

looking on the plane and directing me home, but the small plane and large distance made it almost impossible for them to see the plane, even with binoculars !

at 300m height it is really hard to control it visually,

but by using video it is super easy, the biggest problem is now navigation,

and not getting lost.

solution : gps data back link and tom tom navigator

You may want to upload to a file sharing site such as www.rapidshare.com. Their speeds are constant ~500 kb/s rather than ~30 I'm currently getting...

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Thomas, I guess your RC TX is pretty good if you can still control your plane at a distance of 1500meters, or maybe my system is not optimal...

I have a very nice video downlink, but I get so many glitches and 2 days ago I lost control of my plane and had a very bad crash because it didn't respond at all to any command anymore and it was at about 700m distance and ~120m Altitude, which still should be ok (unless someone used my channel...)

Can you tell me which RC-system (TX and RX) did you use for that?

Cheers,

Hartwig

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yes hartwig those ranges you refer to, are the normal achiveable by 35-40Mhz systems,

I have realized this along time ago, since I was not even happy with the short range 35Mhz for normal visible ranges up to 300-400meters,

so I dont use 35Mhz anymore,

but a homemade 433Mhz system, with slightly more power,

the huge range gain I got now is due to much more effective antenna length.

the system is easy to find on my RC page.

Here in Denmark we have 10 channels in the 433 to 434 Mhz band for RC use,

and with no license you can use and construct your own 500mW transmitters if you like / can.

mine only transmit about 120mW right now !

to save battery I took it abit down hehe,

Edited by ThomasScherrer

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I once was unfortunate enough to get lost as well and see on camera that my plane didnt really repond anymore to my controls :-) Video was still clear tho

I lost control like 100 meters before crashing (due to low altitude?) at a distance of 1250 meters. But i often fly without any problems at 1000 meter range with fpv! But yes, further I start noticing glitches, so system that goes further would be welcome...

Maybe the aerocomm digital links would be good enough, and also servo as digital modem for gps data :-)

In Belgium we can use 433-434 upto 10mW, so I guess that's not powerfull enough to get a longer range?

TOm

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