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Old Nov 18, 2012, 08:48 PM
DJO
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How far have you flown without an OSD?

Yo everybody,

So I'm just wondering. How far have you guys flown WITHOUT an OSD. Like not meaning a OSD with just voltage, without one that shows you which way is home. I've seen some videos of people going all the way out to over a mile without an OSD at all. How far have you gone? (ballpark of course, because without an OSD you can't be sure LOL) I guess it just depends on the area and how well you know it already, but I'm just curious.



Dan
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Old Nov 18, 2012, 08:55 PM
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I've been to about a km going by google earth.
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Old Nov 18, 2012, 08:56 PM
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Unless you're just wandering around aimlessly, direction home is actually a lot less useful
information than voltage and current. Case in point.
http://www.rcgroups.com/forums/showt...1381499&page=1
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Old Nov 18, 2012, 09:02 PM
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Well I actually have an OSD coming in the mail that's super simple and just shows the voltage of up to two battery packs. I can normally fly for a half and hour and know my limits. I'm not a long range guy either - but sometimes it's very easy to get disoriented.



Dan
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Old Nov 18, 2012, 10:15 PM
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I've gone out a good 4 miles without any osd. However, I did have a Ruby in my plane so I had the safety net of being able to get back home in case something went wrong. I wouldn't recommend it though, you're just guessing at your battery levels and hoping you have enough. It can also be disorienting sometimes and you can lose your bearing. Things look a lot different from the sky, even in familiar territory.
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Old Nov 19, 2012, 02:01 AM
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I fly all the time with no OSd
Gave up on OSd long ago as I have no need for it

My longest record is about 30 km away and 30 km back

Google earth tells the distance flown

It's easy just fly out look down at ground as reference to see how far you go

There is no need for OSd if you are aware of your position of the plane at all times

I am only one who fly long range without OSd

Thomas has to use google earth to verify my records

http://www.webx.dk/rc/uhf-link3/competition.htm
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Old Nov 19, 2012, 02:13 AM
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Quote:
Originally Posted by DJO View Post
Well I actually have an OSD coming in the mail that's super simple and just shows the voltage of up to two battery packs. I can normally fly for a half and hour and know my limits. I'm not a long range guy either - but sometimes it's very easy to get disoriented.



Dan

Voltage as you will get used to will be determined by throttle

And sound of motor

It's important to set. Up plane to fly at low voltages
If you fly for long time

Voltage curves are important aspects to understand

At low voltages it would come in handy to see on OSd all cells voltages
Especially if you use two or more batteries in series or parallel


Setting you lvc to desired setting and listening to motor and feeling throttle is good thing to get feeling for with OSd
Then you will understand no need for OSd
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Old Nov 19, 2012, 05:22 AM
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So far I have come to mistrust the mah readings on the OSD. I rely on the voltage more than anything, and I run a couple planes with Simple OSD. But I would never fly more than a couple miles without a GPS OSD - well maybe if it was a very expendable plane and I knew the geography really really well. Fancy OSD really drive up the cost of a plane, for sure! My decked out planes are like $1500 loss if I lose it. My simplest FPV planes are only $200 loss if I lose it.
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Old Nov 19, 2012, 05:23 AM
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Awesome! And 4 miles is pretty good. 30km? OK... not sure about that one, seems kind of a stretch IMO. I guess as long as I can turn around and see where to go home I'll be fine. I know the area pretty well now too.



Dan
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Old Nov 19, 2012, 07:11 AM
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when I fly at my usual field I fly about a kilometer around without OSD...

yesterday I flew at a different place so just after takeoff I circled the field looking for landmarks so I could be able to locate the field and land visually... that's my standard procedure...

after 5 minutes I lost GPS, so no home arrow, or at least a trustable one... no big deal, just looked around and went for a perfect landing...

learn to fly visually and don't rely blindly on your OSD...
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Old Nov 19, 2012, 07:19 AM
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Three reasons for OSD in my book. Pack volts, motor amps to set throttle, and GPS coordinates constantly displayed should the plane go down. I usually dont use the home arrow too much unless I'm really turned around, or its dark.

One of my planes doesnt have OSD and I only fly that out about 1/2 mile
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Old Nov 19, 2012, 07:23 AM
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Iv'e been about 3.5kms without any osd, video from the gopro is here:
FPV to school - Flown w/Dragonlink (4 min 4 sec)
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Old Nov 19, 2012, 02:25 PM
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Too far (got disoriented, lost the plane)
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Old Nov 19, 2012, 06:01 PM
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Alright so it's still farther than I thought. I'll feel better now, flying more than 1/2 a mile away without an OSD. But for now I'm having a blast staying in LOS and just flying FPV!





Dan
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Old Nov 19, 2012, 08:01 PM
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Quote:
Originally Posted by DJO View Post
Awesome! And 4 miles is pretty good. 30km? OK... not sure about that one, seems kind of a stretch IMO. I guess as long as I can turn around and see where to go home I'll be fine. I know the area pretty well now too.



Dan
I always underestimate my distances so there is no doubt how far I fly

Thomas takes his customer records very seriously but stopped giveing away
Free rxs to those who go the distance and return home

Besides Roberto montel took the records to such far distances it kind of blew everyone out of the competition, he is expert long range guy, you can see his name on hall of fame many times
But he use OSd and Rth


30 km away with no OSd is not hard to do at all

But does take good navigation skills and how to set up a fpv plane and ground station properly

I fly long range long ago , one of the pioneers of long range, which I am proud of

But now just fly short range, no further than 9 km at most now

Long range can be boring, but very exciting when done with no OSd
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