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Oops. I did it again.


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Blues4dog
Hopping Maniac
Hopping Maniac


Joined: 17 Sep 2011
Posts: 41
Location: Tasmania. Australia.

PostPosted: Wed Jan 09, 2013 4:35 pm
PostPost subject: Oops. I did it again.
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Face-planted the Hughes again from about 50-60 ft up.
Looks serious this time.
Not sure what went wrong but no matter what I tried it just kept coming straight down nose first. Shocked



*&%&$#

B4D
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admiral
Extreme 3D
Extreme 3D


Joined: 20 Mar 2009
Posts: 1101
Location: Brisbane, Australia

PostPosted: Thu Jan 10, 2013 2:25 am
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Oh B4D,

You are the master of understatement, I'm interested to see what the Hughes morphs into.
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Blues4dog
Hopping Maniac
Hopping Maniac


Joined: 17 Sep 2011
Posts: 41
Location: Tasmania. Australia.

PostPosted: Thu Jan 10, 2013 10:15 am
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On closer inspection, believe it or not, it may just be repairable.
If so, I think I will go for a brighter colour scheme as I have discovered the reason for camouflage. It works.
There are lots of trees where I fly so it is not unusual for the heli to 'disappear' momentarily. (Not the problem on this occasion though).

Ah well.

Better break out the tool kit again.

Cheers

B4D
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Blues4dog
Hopping Maniac
Hopping Maniac


Joined: 17 Sep 2011
Posts: 41
Location: Tasmania. Australia.

PostPosted: Thu Mar 21, 2013 4:26 pm
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"IT LIVES"



Tried to put the old fuselage back together but there were too many bits missing. New one from HK and not camouflage this time.

A few bent bits replaced and back to the 2 blade head. Replacing 5 blades each crash was getting expensive.

I will try to keep it in one piece this time.

B4D
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jathanjr
Extreme 3D
Extreme 3D


Joined: 21 Jan 2013
Posts: 75
Location: League City, Texas

PostPosted: Sun Mar 24, 2013 10:46 am
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LOOKS GREAT B4D!!!!!!!!
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admiral
Extreme 3D
Extreme 3D


Joined: 20 Mar 2009
Posts: 1101
Location: Brisbane, Australia

PostPosted: Sun Mar 24, 2013 6:08 pm
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Hi B4D,

Sadly a sign of the times, cheaper and easier to replace than repair, it does look good though hope it flies as good as it looks.
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Blues4dog
Hopping Maniac
Hopping Maniac


Joined: 17 Sep 2011
Posts: 41
Location: Tasmania. Australia.

PostPosted: Fri Dec 27, 2013 6:48 am
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This may interest some of you. As I said in the OP, the heli just seemed to lose contact with the radio and did not re-acquire. The range was not too far and the electronics all worked when I powered it up again after the crash. It has had me baffled for some time.
Recently I had a fixed wing aircraft do exactly the same thing at a club day. Different radio system so I can't blame that. It destroyed the plane as you would expect but again when I powered up afterwards, everything worked.
A very experienced pilot / modeler had a look and suggested that the ESC I was using seemed too low a rating for the aircraft and may have over heated, shutting down and causing a temporary loss of power to the receiver. This seems possible as my ESC incorporates the BEC and powers everything.
It got me wondering if the heli crash may have been the same thing. The internals of the Hughes were all standard Twister Storm but when I take into account the extra weight of the fiberglass fuselage, a larger, heavier battery and the fact that the airflow over the ESC may not have been sufficient to cool it properly it could easily add up to an overworked and overheated ESC. The rebuilt heli fortunately has a higher rated ESC and the problem has not yet repeated itself.
Don't know if anybody else has had a similar experience but it is food for thought if you are into modifying or tweaking things.

Cheers, hope you all had a Merry Christmas and have a Happy new year.

B4D
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admiral
Extreme 3D
Extreme 3D


Joined: 20 Mar 2009
Posts: 1101
Location: Brisbane, Australia

PostPosted: Tue Dec 31, 2013 7:52 am
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Hi B4D,

I have had a similar experience after fitting a scale body I used the electrics out of an old Trex 450 FX in my scale EC145 I momentarily loose BEC power and the motor shuts down at about liftoff revs, the frame fly's fine without the body. I'm replacing the ESC and motor with an S6 system that should give it enough power to handle the extra weight.

I guess I'm lucky that it fails before lift off.
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Blues4dog
Hopping Maniac
Hopping Maniac


Joined: 17 Sep 2011
Posts: 41
Location: Tasmania. Australia.

PostPosted: Sun Jan 05, 2014 5:52 am
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Thanx admiral. That pretty much confirms my thoughts. Hasn't changed the end result but I feel more informed.

Cheers.

B4D
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tombo242
Admin
Admin


Joined: 04 Nov 2008
Posts: 4718
Location: Santo Estêvão, East Algarve, Portugal. Now 82, but still feels 22.

PostPosted: Sun Jan 05, 2014 6:51 am
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This is perhaps a little aside on the track of this thread, but the problem I had with similar shutdowns on my EXI450 was due to static buildup in the tail belt.

It too would come up to lift-off power and then shut down. A quick lift off would get it into the air for a few seconds then it just died. Lubing the belt gave it a half battery run, changing to a genuine align belt cured the problem completely.

Just my 0.02€ worth.

Tom.
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hick20
Hover Master
Hover Master


Joined: 29 Dec 2014
Posts: 10

PostPosted: Fri Jan 09, 2015 2:20 pm
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oops Sad
careful next time .
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Shaun96
Hopping Maniac
Hopping Maniac


Joined: 07 Jan 2015
Posts: 29
Location: San Fransisco

PostPosted: Wed Jan 14, 2015 6:46 pm
PostPost subject: Re: Oops. I did it again.
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Blues4dog wrote:
Face-planted the Hughes again from about 50-60 ft up.
Looks serious this time.
Not sure what went wrong but no matter what I tried it just kept coming straight down nose first. Shocked



*&%&$#

B4D


oh man, feel sorry for the damage.
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