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Old Jun 01, 2012, 04:44 PM
Doing it in the Lateral Axis
modfly's Avatar
USA, OH, Akron
Joined Dec 2006
15,360 Posts
I don't agree with the idea of .."if you fly them your gonna crash them sooner or later" thats just not true. I don't think pilots of full scale planes feel that way nor do I. When you first start flying you have some crashes but after a while, that goes away and you have "misshapes" like a broken landing gear or a cracked cowl but a outright crash no..very rare for an established flyer. Now equipment failure can happen to anybody but even that can be mostly eliminated with a little pre flight. I don't like hand launching either,,thats just asking for it!
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Old Jun 01, 2012, 09:02 PM
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United States, IL, Joliet
Joined Jul 2011
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i did one handlaunch with my Islander......that was sketchy....I finally flew tonite for the fist time in 2 weeks since the wind finally calmed down enough....Did a few laps around my neighborhood with it....
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Old Jun 02, 2012, 09:05 PM
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United States, OK, Tulsa
Joined Nov 2011
110 Posts
I did my maiden today the frist flight when great even with the small motor it had plenty of power, but the 2nd flight i lost signal with the receiver (FrSky TFR6 7ch 2.4Ghz FASST) it with nose in not good
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Old Jun 03, 2012, 05:00 AM
Ex RAF Techie
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North East England
Joined Jun 2010
764 Posts
Quote:
Originally Posted by dbar101219 View Post
I did my maiden today the frist flight when great even with the small motor it had plenty of power, but the 2nd flight i lost signal with the receiver (FrSky TFR6 7ch 2.4Ghz FASST) it with nose in not good
Sorry to hear about your crash man. I really don't see the fascination with 2.4ghz radios. It seems to me that they just ruin a lot of people's models by locking out. I'm still using 35mhz with no issues. Sure I've had glitches now and then, but nothing that couldn't be fixed by re-routing the aerial wire, or moving the ESC slightly. I've certainly never lost a model through radio failure.
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Old Jun 03, 2012, 08:08 PM
I live my life 8oz at a time..
arnav's Avatar
United States, FL, Miami
Joined Nov 2011
2,545 Posts
dbar,

- Did you do a range check before takeoff?

- Was the antenna on the Tx folded at 90 degrees?

- If you use a satellite Rx, was it at least 3" from the primary Rx?

- If you use a satellite Rx, are its antennas at 90 degrees to the primary Rx antennas'? In the Mosa its basically means that the primary Rx is above the battery compartment and the satellite at 90 degrees in the cockpit.

- Were any ferrite rings really close or touching the Rx/ESC/UBEC?

- How far is the ESC from the Rx?

- Did you look at the spec of the Servos to make sure 4 of them don't draw more than 3A or 5A (or whatever your ESC is rated for) if you are not using a BEC?

- Did you check the Voltage on your battery before the flight to make sure the battery was full?

- Are the connections between the ESC and battery robust?

- When you crashed, were any of the servos still responding (i.e. a connection established again) or was everything dead?

Just some things I can think of from the top of my head...

I found that putting all the electronics in the Mosa 2 (while maintaining optimal distance between the different components) can be tricky.
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Old Jun 03, 2012, 08:23 PM
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United States, OK, Tulsa
Joined Nov 2011
110 Posts
Quote:
Originally Posted by arnav View Post
dbar,

- Did you do a range check before takeoff?

- Was the antenna on the Tx folded at 90 degrees?

- If you use a satellite Rx, was it at least 3" from the primary Rx?

- If you use a satellite Rx, are its antennas at 90 degrees to the primary Rx antennas'? In the Mosa its basically means that the primary Rx is above the battery compartment and the satellite at 90 degrees in the cockpit.

- Were any ferrite rings really close or touching the Rx/ESC/UBEC?

- How far is the ESC from the Rx?

- Did you look at the spec of the Servos to make sure 4 of them don't draw more than 3A or 5A (or whatever your ESC is rated for) if you are not using a BEC?

- Did you check the Voltage on your battery before the flight to make sure the battery was full?

- Are the connections between the ESC and battery robust?

- When you crashed, were any of the servos still responding (i.e. a connection established again) or was everything dead?

Just some things I can think of from the top of my head...

I found that putting all the electronics in the Mosa 2 (while maintaining optimal distance between the different components) can be tricky.
i did a range check

how far does the esc need to be from the reciver? mine was about 3"

i'm using 4 Hitec HS-81 srevos

what is ferrite rings?

at frist after the crash reciver was reponding but now a can't even get it to bind i'm sending back to have it check out I'm beginning to the think these knock off reciver are not worth the savings

this is my frist electric
thanks for the help
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Old Jun 03, 2012, 10:00 PM
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Taiwan, 北市
Joined Dec 2010
1,215 Posts
Quote:
Originally Posted by dbar101219 View Post
I did my maiden today the frist flight when great even with the small motor it had plenty of power, but the 2nd flight i lost signal with the receiver (FrSky TFR6 7ch 2.4Ghz FASST) it with nose in not good
I'd like to know if you keep the Rx's antenna away from battery, battery leads/plug and anything metal kind.
Chen
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Old Jun 04, 2012, 10:18 AM
I live my life 8oz at a time..
arnav's Avatar
United States, FL, Miami
Joined Nov 2011
2,545 Posts
Sounds like your ESC is far enough from the Rx. Like Chen said, also make sure it doesn't touch anything metal.

Here is a pic of a ferrite ring. Your ESC wire to the Rx may have one. Make sure the ring is as far as possible from your Rx.
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Old Jun 04, 2012, 12:04 PM
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The Netherlands, ZH, Wassenaar
Joined Sep 2010
820 Posts
With RX glitches and ESC placements, seems we have enough problems already but when it rains it pours. I walked out the front door and now the hawks are perched in the yard maybe waiting for an ambush.
Fresh Kill Delhi Hawks (Black Kites) Fuji S1800 Zoom Test (1 min 13 sec)
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Old Jun 04, 2012, 01:53 PM
The figure "9" Specialist
aeronca's Avatar
A Barrier Island in New Jersey, USA
Joined Oct 2003
3,465 Posts
Quote:
Originally Posted by TheLeabres View Post
With RX glitches and ESC placements, seems we have enough problems already but when it rains it pours. I walked out the front door and now the hawks are perched in the yard maybe waiting for an ambush.
http://www.youtube.com/watch?v=AXfh_dj1-wI
Uh, oh... Looks like it's time to scramble the warbirds for some aerial combat!

Aeronca
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Old Jun 04, 2012, 02:36 PM
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United States, IL, Joliet
Joined Jul 2011
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I actually do that...following hawks and seagulls around....you never what they'll do and that makes it fun to follow them around
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Old Jun 04, 2012, 08:56 PM
Shelter Kitty "Orange Death"
bartricky's Avatar
United States, FL, Monroe
Joined Jan 2008
3,159 Posts
BN2 Islander Progress.

Getting closer, probably maiden this week.

I mounted the 300 motors tonite and was curious to see what those little 4" props would do. I was surprised to see static test read about 115W on a 2s lipo. That should do it.

AUW is 15oz with a 2S 1300 batt.
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Last edited by bartricky; Jun 04, 2012 at 09:09 PM.
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Old Jun 04, 2012, 09:16 PM
Registered User
Taiwan, 北市
Joined Dec 2010
1,215 Posts
Bartricky,

Good luck to the coming maiden !
Did you balance the two props for better performance ? Some of GWS props might have not been well balanced.
Chen
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Old Jun 04, 2012, 10:09 PM
Shelter Kitty "Orange Death"
bartricky's Avatar
United States, FL, Monroe
Joined Jan 2008
3,159 Posts
Quote:
Originally Posted by twn Chen View Post
Bartricky,

Good luck to the coming maiden !
Did you balance the two props for better performance ? Some of GWS props might have not been well balanced.
Chen
Good thought Chen.

I usually tweak the little things if it survives the maiden.
I did paint most of the props black.
Orange cats good, orange props not so much

BTW: I noticed that the ID # is from an actual BN2 operating in Taiwan, cool.
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Last edited by bartricky; Jun 04, 2012 at 10:15 PM.
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Old Jun 04, 2012, 11:35 PM
Registered User
Taiwan, 北市
Joined Dec 2010
1,215 Posts
Quote:
Originally Posted by bartricky View Post
Orange cats good, orange props not so much

BTW: I noticed that the ID # is from an actual BN2 operating in Taiwan, cool.
Yes, there are some Islanders operating in Taiwan for the services between Taiwan and some surrounding islands.
綠島的美-Green Island, Taiwan.......(Island Records) (8 min 51 sec)
This is one of the islands. Sorry, it's been off topic.

Chen
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