Lumenier RB2205C-12 2400KV SKITZO Ceramic Bearing Motor
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Old Jul 10, 2012, 12:04 PM
RCFlightman is offline
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Very, very bad crash.


RC airplane, tragic crash! (3 min 29 sec)
Last edited by RCFlightman; Jul 10, 2012 at 12:44 PM.
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Old Jul 10, 2012, 11:33 PM
RCSwitz18 is offline
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well you didnt exactly grease that landing!

What happened? Radio issues? OR was it downwind? thats what it looked like :*
Old Jul 11, 2012, 12:41 AM
sashaNar is offline
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Skilled crasher
You should attach your gear with neylon screws. I've seen a few times when they saved an airplane in a very rough landing.
On the video we can see gear breaking the airplane in halves.
Old Jul 11, 2012, 01:20 PM
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***That was not my plane***
The piliot was just coming in too fast.
Old Jul 11, 2012, 02:15 PM
Buzz_Man is offline
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Fly safe, fly often!
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Quote:
Originally Posted by RCFlightman View Post
***That was not my plane***
The piliot was just coming in too fast.
It looks like the pilot was coming in way too slow &/or with the wind, like he didn't really know what he was doing.

Just guessing but It seems like the huge size of the aircraft could create deceptive visual feedback - maybe the perception is that the airplane appears to be flying faster due to years of experience covering the same distance with smaller aircraft.

With a fully functional airplane and adequate speed, the skill required to land is much easier, control is better. The right wing dipped way down numerous times on the approach. With greater speed - and skill - this boo boo looks like it could have been totally avoidable.
Old Jul 11, 2012, 03:24 PM
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Yea, well anyway, does any body have feedback on the video stabilision? Its from the youtube editiong options.
Is it good or bad?
Old Jul 20, 2012, 06:19 PM
RobMason is offline
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Plane Nuts
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Trying to land om high rates and way too fast for this plane. It will land at a walk. Looks like someone new to 3d planes and did not set up expo or low rates
Old Jul 23, 2012, 03:24 PM
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Not sure how it could have been coming in too fast when it obviously stalled from about 3 feet up and slammed down breaking off the gear and nose. I am pretty sure he was way too slow or coming in with a tail wind, or both. Bigger planes look like they are going slower than they really are usually and look like they are landing at a walking pace but they are really going 10-15 mph.
Old Jul 23, 2012, 09:49 PM
microflitedude is offline
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I see you used the shaky video correction from Youtube.

It doesn't look very good, the video is all distorted. I would remove it if I was you.
Old Jul 24, 2012, 06:11 PM
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Facts, Logic, 3D
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IMO it just looked like the pilot was behind it the entire time, and the rates were too mushy (not enough) to correct for it. Plane went up, he pushed down, plane when down, he tried to pull up and BAM! Dead plane.

--Tom K.
Old Jul 24, 2012, 11:12 PM
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3D? I only got two thumbs!
That video looks very much like the "landing" I had with my little park zone extra 300 that tore the gear out.
The cause in my case was at least:
- a little more airplane than the pilot (me) was quite ready for.
- a slightly tail heavy CG
- too much expo on too low rates.
Took me a while to realize that last one - what was happening is I'd move the stick, not much would happen, I'd get nervous and move it more, and too much would happen. And so on with attempting to correct that.
There may have been other factors I'm unaware of. I'm doing better with less expo and the CG shifted forward a bit.

One thing I'm wondering about - how can you tell the difference between a stall, and an over correction by the pilot from watching the video?

- Ken
Old Jul 24, 2012, 11:21 PM
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You can usually tell by the movement in the controll surfaces. In this case it was over correction.
Old Jul 31, 2012, 02:31 PM
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how can you tell the difference between a stall, and an over correction by the pilot from watching the video
even the low pass was over corrected, and the approach was going that way from the start. Looks like simple pilot error to me, reacting to the model, not flying it.
Old Jul 31, 2012, 02:50 PM
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Hmm could be, I thought it was a stall but its hard to tell exactly. Looks kind of like my first attempts at landing my Pete n Poke before I added expo to the controls Luckily my hard landing only slightly cracked the plywood side of the plane where the landing gear mount attaches to the inside of the fuse.
Old Aug 01, 2012, 12:10 PM
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You can't take the sky from me
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Definitely not a stall. I have seen that exact thing while instructing in full scale. you are coming in to land get hit with a small gust or just pitch up too fast and the plane balloons. The common, yet wrong, action is to release back pressure and the plane dives back down too quick to react to. The correct action is to maintain the stick position and even add a little throttle if it seems a little slow. This will slow the descent and allow you to stabilize the approach. The instant you relax that back pressure it will dive, when you maintain the pressure it will still start to drop the nose and start a rapid descent but it will be a more controlled descent and you will still have some airspeed to play with. If you are too near your stall speed you have to either go around or use throttle, not the elevator, to slow your descent.


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