SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Dec 05, 2007, 03:00 AM
Registered User
Jumpjet101's Avatar
United States, CA, Santa Clarita
Joined Jul 2007
404 Posts
Discussion
FPV Helicopter vs Airplane

As you can see from my videos (http://www.youtube.com/profile?user=Jumpjet101), I currently fly FPV helicopter. I never flew a plane before but am wondering if flying FPV would be better using an airplane vs a helicopter? I see more people flying FPV using airplanes as oppose to helicopters.

My concern is when I fly my helicopter out of range of either my video downlink or my DX7 radio, it will just fall out of the sky as seen in one of my crash videos. I figure with an airplane, if that happens, I would have a chance to recover it by gliding the thing back into range with a fail safe. Don't get me wrong, I really enjoy flying FPV by helicopter but the risk seems alot more than it would be with an airplane. I want to know what you all think about the two.

If I were to start flying FPV using an airplane, which one would be a good one to use that could carry the weight of the FPV equipment? I'm considering trading one of my helicopters (Trex 450 V1) for a decent plane if it turns out to be a better FPV platform.
Jumpjet101 is offline Find More Posts by Jumpjet101
Last edited by Jumpjet101; Dec 05, 2007 at 03:09 AM.
Reply With Quote
Sign up now
to remove ads between posts
Old Dec 05, 2007, 03:35 AM
Registered User
Daemon's Avatar
Lakewood, Colorado
Joined Aug 2002
28,643 Posts
Yes it would be safer to fly FPV with a plane and with something like
the Dragon OSD + GPS you can even have an autopilot that'll fly the plane
home under failsafe conditions.

But, you've demonstrated the most bad ass FPV helicopter pilotting
of anyone here, and it would be a shame to see you move to move to
powered planes like everyone else. It's the same reason that I've put my
FPV gear on a pure slope plane. Nobody else does it.

I think your biggest limiting factor right now is your 2.4Ghz RC radio.
If you want more RC range you could move back to 72Mhz which is
well proven out to miles.

ian
Daemon is online now Find More Posts by Daemon
RCG Plus Member
Old Dec 05, 2007, 09:48 AM
Registered User
Jumpjet101's Avatar
United States, CA, Santa Clarita
Joined Jul 2007
404 Posts
Quote:
Originally Posted by Daemon
Yes it would be safer to fly FPV with a plane and with something like
the Dragon OSD + GPS you can even have an autopilot that'll fly the plane
home under failsafe conditions.

But, you've demonstrated the most bad ass FPV helicopter pilotting
of anyone here, and it would be a shame to see you move to move to
powered planes like everyone else. It's the same reason that I've put my
FPV gear on a pure slope plane. Nobody else does it.

I think your biggest limiting factor right now is your 2.4Ghz RC radio.
If you want more RC range you could move back to 72Mhz which is
well proven out to miles.

ian
Thanks Daemon for the comment. I thought there would be more interference using the 72MHz freq compared to the 2.4Ghz. Is that still true if you are in a city type enviorment with alot of radio waves? I may consider that option to.

I may just keep what I have and try to work an improve the quality and range. I started by twisting all the wires as suggested. I'll see if that helps.
Jumpjet101 is offline Find More Posts by Jumpjet101
Reply With Quote
Old Dec 05, 2007, 11:25 AM
Fly FPV, sleep; repeat
twinturbostang's Avatar
Germantown, MD
Joined Mar 2006
3,376 Posts
Are you running both systems (RC control and video downlink) on 2.4GHz. If so, that could be most of your problems. Getting both 2.4GHz systems to play together friendly is not usually easy to do. And most of the time you end up with video interference, reduced range, or other problems.
twinturbostang is offline Find More Posts by twinturbostang
Reply With Quote
Old Dec 05, 2007, 11:48 AM
Registered User
Jumpjet101's Avatar
United States, CA, Santa Clarita
Joined Jul 2007
404 Posts
Quote:
Originally Posted by twinturbostang
Are you running both systems (RC control and video downlink) on 2.4GHz.
I'm using a 900MHz downlink with my DX7.
Jumpjet101 is offline Find More Posts by Jumpjet101
Reply With Quote
Old Dec 05, 2007, 12:20 PM
Registered User
Daemon's Avatar
Lakewood, Colorado
Joined Aug 2002
28,643 Posts
The only reason you'll generally see interference on 72Mhz is if someone else
is flying on the same frequency. 72Mhz with its longer wavelength is much
less affected by all the things that hurt 2.4Ghz, like multi-pathing, foreground
obstructions such as trees, and interference from third party devices (wireless
routers, cordless phones, and other people's 2.4Ghz FPV rigs). There's
nothing inherently better about 2.4Ghz and a lot of things that are worse.
The move to 2.4Ghz comes only because the FCC (and similar agencies
in other countries) has said that all 2.4Ghz devices should be designed to play
nice with each other, so if everyone follows the rules then there are
fewer frequency conflicts. 2.4Ghz also allows for much higher bandwidth
when transmitting data. For RC control the ideal would be to be able to
do all the same things that 2.4Ghz radios do to stay on an open frequency,
but do it in the 72Mhz band. But there's no way to do that and still
play nice with the legacy systems so they had to move to 2.4Ghz.

ian
Daemon is online now Find More Posts by Daemon
RCG Plus Member
Old Dec 06, 2007, 01:21 PM
FPV Pilot
Crash9's Avatar
United States, MT, Missoula
Joined Mar 2006
1,264 Posts
I do both heli and plane FPV and I have to say that a plane is a lot more relaxing to fly FPV . Also much cheaper to re-pair. Normally with a heli flying in normal view I keep it close by but I have the same issues when piloting in FPV I tend to fly it to far. Helis have a lot of self generated interference and that's why I use a DX7 but they still get less range then a plane with the same gear. Now I keep a mental note to stay close by in FPV. The heli has a WOW factor which is nice but you can get almost the same video and not have to worry about those spinning blades coming at you or someone if something happens. As far as my FPV heli piloting I still love to do it , but I still alway's have my planes waiting there turn .


Jumpjet, your youtube link didn't work for me .
Crash9 is offline Find More Posts by Crash9
Reply With Quote
Old Dec 06, 2007, 01:54 PM
Registered User
Mr.RC-CAM's Avatar
USA
Joined Oct 2001
5,185 Posts
Quote:
I'm considering trading one of my helicopters (Trex 450 V1) for a decent plane if it turns out to be a better FPV platform.
Don't do that. Your videos demonstrate you have amazing heli-FPV talents.

Quote:
Jumpjet, your youtube link didn't work for me
http://www.youtube.com/results?search_query=jumpjet101

Quote:
I may just keep what I have and try to work an improve the quality and range.
The DX7 lockout's suggest that it might not be the best R/C system for your application. Maybe a high-end PCM system would be a better choice for you. For sure, I was very impressed with the recovery from the first major DX7 lockout. The final one that augered the model was sad to see.
Mr.RC-CAM is offline Find More Posts by Mr.RC-CAM
Reply With Quote
Old Dec 06, 2007, 02:19 PM
FPV Pilot
Crash9's Avatar
United States, MT, Missoula
Joined Mar 2006
1,264 Posts
Jumpjet, What RX do you use . The reason I ask is because there's alot of reports of problems when using the ar6100 micro RX with wireless video gear. I use the ar6200 on my 450 and 7000 on my 600 heli without any problems .

I always stay more then 25' from anyone else with a DX7 and power up after they already have that way I get a clearer channel. I don't know if it helps but others recommend it .
Crash9 is offline Find More Posts by Crash9
Reply With Quote
Old Dec 06, 2007, 03:01 PM
Fly FPV, sleep; repeat
twinturbostang's Avatar
Germantown, MD
Joined Mar 2006
3,376 Posts
Quote:
Originally Posted by Mr.RC-CAM
Don't do that. Your videos demonstrate you have amazing heli-FPV talents.
I agree! VERY impressive!

There are people here that say flying heli's FPV is not possible. I'd say you have gone WAY BEYOND merely demonstrating it can be done!
twinturbostang is offline Find More Posts by twinturbostang
Reply With Quote
Old Dec 07, 2007, 06:17 AM
Registered User
Jumpjet101's Avatar
United States, CA, Santa Clarita
Joined Jul 2007
404 Posts
I'm using the AR7000 RX in the heli. I recently upgraded the motor to an AXI 2820/10 (1200kv) from a Quick 890kv motor and I'm getting a lot more video interference. I'm going to switch back to my old motor to see if that solves my video problems. Here is a picture of what I'm flying FPV with.
Jumpjet101 is offline Find More Posts by Jumpjet101
Reply With Quote
Old Dec 07, 2007, 07:52 AM
Live FPV or Die
VRflyer's Avatar
Montreal,Canada
Joined Feb 2002
3,963 Posts
you can't choose a worst location for the 900mhz antenna, you will have a much better video link if you install your antenna vertically between the landskid
VRflyer is online now Find More Posts by VRflyer
Reply With Quote
Old Dec 07, 2007, 07:58 AM
Registered User
Mark Harris's Avatar
Perth, Western Australia
Joined Apr 2007
1,207 Posts
Personally, I'd mount it in the front of the canopy with the antenna pointed up towards the rotors.

You do need your antenna vertical, and with the least amount of metal around as possible
Mark Harris is offline Find More Posts by Mark Harris
Reply With Quote
Old Dec 07, 2007, 08:29 AM
Fly FPV, sleep; repeat
twinturbostang's Avatar
Germantown, MD
Joined Mar 2006
3,376 Posts
Quote:
Originally Posted by Mark Harris
and with the least amount of metal around as possible
lol That's not so easy to do on a heli! Tough to keep those foam heli's from falling apart.
twinturbostang is offline Find More Posts by twinturbostang
Reply With Quote
Old Dec 07, 2007, 08:44 AM
Live FPV or Die
VRflyer's Avatar
Montreal,Canada
Joined Feb 2002
3,963 Posts
I would replace the matalic part of the landskid with wood or plastic, and antenna will have no obstruction most of the time, so very good video reception
VRflyer is online now Find More Posts by VRflyer
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Heli vs. Airplane Radio? FlyingW Electric Heli Talk 16 Dec 05, 2011 08:35 PM
Question Cell count in car packs vs airplane packs M Ashmore Batteries and Chargers 13 Nov 24, 2003 10:42 AM
RC Car Motor vs. Airplane Motors dizza Power Systems 31 Feb 12, 2002 05:45 PM