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Old Feb 26, 2010, 12:51 PM
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Fastest FPV flight?

Just wondering what the fastest fpv flight that has been done, with video preferably. I just think it would be cool to do an fpv flight out in the open with some speed. All the turbine and edf videos that you see are like nascar, just big circles because they are so fast and get small so fast.
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Old Feb 26, 2010, 01:10 PM
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From most of the video's I've seen, speed fpv is the same
as speed normal flying. With my speed planes it's high speed passes. That's about it.

It's alot of fun, but only because they are so fast. I guess my point is fpv is more about the flying (why gliders and such are so popular), so speed fpv might not be as fun as an aerobatic plane or one that flies for a long time.
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Old Feb 26, 2010, 02:25 PM
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I dont think my nerves could handle fast FPV flying. All you'd need is 1 second of lost signal and WHAM!
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Old Feb 26, 2010, 03:05 PM
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There are several folks here who've done 100-120mph, but with conventional
control and video gear it's not hard to outfly your range at speeds above that.
Generally it's just not worth it because it takes 8x the power to go 2x as fast
so your battery life is extremely short.

What I prefer to do is simply fly closer to the ground. Buzzing around at 30-40mph
only 2-3 feet off the ground, feels like going 150+mph in my car. And I can
do it for 15 minutes at a time, instead of burning through my battery in 5 at top speed.

ian
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Old Feb 26, 2010, 03:12 PM
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Ive heard stories about a funjet being airlifted up with a helium balloon and then doing 800kmh because of a lack of air friction.
No video unfortunately.
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Old Feb 26, 2010, 03:38 PM
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This is how I like to fly now, when your this low it feels like you going alot faster.
http://www.youtube.com/user/FPVFLIGH.../0/t05sgftCzI0
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Old Feb 26, 2010, 04:17 PM
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little up 200 kmh in funjet http://www.vimeo.com/5141489 ...
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Old Feb 26, 2010, 04:27 PM
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Gabi love speed, i don`t remember exactly how fast was his Funjet last year at the France Meeting.
The advantage of FPV is you can go much farther than visual range pilot can do, so it`s not neccessary to always turn rapidly after a fast pass. It`s easy to have a reliable video at 1km range, it`s more than enough for high speed flying. Also if you install a 2.97mm lens like I use for all my planes, due the wide angle lens, everything appear to move slow in the picture, even at 100kmh when you fly at more than 100feet altitude. Flying at 200 or 300kmh represent no problem with the plane control, pilot always have the same point of view from inside the cockpit.
My F-16 fly at 100kmh and everything appear moving slow at my taste.
F-16 FPV Full operational (4 min 49 sec)


hum I don`t realise that I fly FPV since 9 years now... it make all the difference
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Old Feb 26, 2010, 05:16 PM
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Quote:
Originally Posted by VRflyer View Post
My F-16 fly at 100kmh and everything appear moving slow at my taste.
That's because 100km/h *is* slow.

Any souped up Funjet can go 100_mph (160_km/h) so I generally wouldn't
consider it "fast" until you're doing at least that. If we're talking jets and such
then I'd set the benchmark for fast at about 150mph (241_km/h)
at which point you're covering a km every 14 seconds so you can't fly straight that long.

ian
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Old Feb 26, 2010, 05:23 PM
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Daemon, size also effects "fast" imho.

I've done about 160 with a 32" wingspan, and an airframe that small looks alot faster than the 65" obes going 190.
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Old Feb 26, 2010, 05:42 PM
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Ive been wondering this about RC car FPV aswell.
If a model car goes 40mph, does that mean it will FEEL like 400mph because youre 1/10th the distance off the ground with your eyes?

Just a thought.
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Old Feb 26, 2010, 05:42 PM
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Quote:
Originally Posted by gundamnitpete View Post
Daemon, size also effects "fast" imho.

I've done about 160 with a 32" wingspan, and an airframe that small looks alot faster than the 65" obes going 190.
Obviously, but what relevance is that, to an FPV piloted plane where your only view is onboard?

ian
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Old Feb 26, 2010, 05:52 PM
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Quote:
Originally Posted by Freakazoid View Post
Ive been wondering this about RC car FPV aswell.
If a model car goes 40mph, does that mean it will FEEL like 400mph because youre 1/10th the distance off the ground with your eyes?

Just a thought.
With equivalent field of view, yes absolutely.
As I said, that's why I choose to fly my FPV planes closer to the ground. It increases
the scale speed effect without having to actually go any faster. Anyone who's
ever driven shifter karts can relate to it very directly. 60mph with your butt
2 inches off the ground and eyes only 2 feet off the ground, feels
pretty crazy.

Let's compare Funjet to F/A-18. 1:16 scale.
To replicate the experience of flying the full scale aircraft at 600mph 1000 feet up,
I need only fly the Funjet 37mph, 62 feet up.
If I fly Funjet 6 feet off the ground at 70mph (which I do) that's like flying the full
scale plane at 1100 mph only 96 feet above the ground.

ian
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Old Feb 26, 2010, 06:12 PM
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Quote:
Originally Posted by Daemon View Post
Obviously, but what relevance is that, to an FPV piloted plane where your only view is onboard?

ian
Just stating that distance covered is relative to size when piloting normally.
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Old Feb 26, 2010, 06:23 PM
BEOWULF
North vancouver, B.C. Canada
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Here are some pretty fast planes

This one will for sure do over 200km fpv in a dive
tests done with 3 cells but can be used up to 5 cells

http://www.soaringusa.com/products/p...ategory_id=262

FPV testing with Thomas' system, Absolute F5B Hotliner from soaring USA (2 min 58 sec)


this one goes very fast as well and for a long time

http://www.greatplanes.com/airplanes/gpma1320.html

Little Toni Pylon racer FPV systems test (3 min 17 sec)


low drag is important
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