RCU Forums

RCU Forums (https://www.rcuniverse.com/forum/)
-   Crash & Rebuild (https://www.rcuniverse.com/forum/crash-rebuild-96/)
-   -   Giant P-51 Mustang destroyed on take off (https://www.rcuniverse.com/forum/crash-rebuild-96/11664963-giant-p-51-mustang-destroyed-take-off.html)

DominicM 05-20-2019 05:55 AM

Giant P-51 Mustang destroyed on take off
 
A very expensive electric conversion destroyed within seconds of take off. Even the most experienced pilots make small mistakes which can have disastrous consequences.


rgburrill 05-20-2019 04:49 PM

May not have been pilot error. I noticed one gear went up but the other one didn't. That could have drug the power level quite low to where the receiver just couldn't control the servos properly.

maukaonyx 05-20-2019 06:54 PM

Looks like a typical tip stall to me, and pilot error.

BarracudaHockey 05-21-2019 03:30 AM


Originally Posted by rgburrill (Post 12526321)
May not have been pilot error. I noticed one gear went up but the other one didn't. That could have drug the power level quite low to where the receiver just couldn't control the servos properly.

The gear never retracted, not sure what you saw but the doors open on that model before the gear retract.

Hard to say for sure without knowing the pilot background but he took off too early, dumped lift in a near stall with full speed flap servos, and it snapped over.

If I had to guess I'd say someone was spending too much time developing bad habits by yanking foamies around and tried to fly a heavy, built-up warbird that way and it bit him in the toosh.

speedracerntrixie 05-21-2019 08:28 AM


Originally Posted by BarracudaHockey (Post 12526394)
The gear never retracted, not sure what you saw but the doors open on that model before the gear retract.

Hard to say for sure without knowing the pilot background but he took off too early, dumped lift in a near stall with full speed flap servos, and it snapped over.

If I had to guess I'd say someone was spending too much time developing bad habits by yanking foamies around and tried to fly a heavy, built-up warbird that way and it bit him in the toosh.


Yes Sir. Simply tried to yank it around too hard while going too slow. Excessive elevator throw could have been a contributor as well.

RCFlyerDan 05-21-2019 05:01 PM


Originally Posted by BarracudaHockey (Post 12526394)

If I had to guess I'd say someone was spending too much time developing bad habits by yanking foamies around and tried to fly a heavy, built-up warbird that way and it bit him in the toosh.

+1 Accelerated stall.

scale only 4 me 05-28-2019 12:46 PM

Yeah, Low on power, minimum airspeed, clearly under powered, turned himself down wind right into a stall,, that's both builder and pilot error

Lee Taylor 05-28-2019 04:37 PM

My money is on pilot dis-orientation. Everything was shaky but relatively well until the plane started in the direction of the pilot. At that point he should have leveled the wings but instead put in left aileron which accelerated the spiral. Will never know for sure but to me personally it was clearly pilot error.

speedracerntrixie 05-28-2019 05:45 PM

One big hint is the amount of up elevator you can see while it's on the way down.

Lee Taylor 05-29-2019 02:17 AM

Been there. Done that. It took me a long time to adjust to flying to me. Once I started moving the stick towards the lower wing, I got the hang of it. This pilot need help

Appowner 05-30-2019 07:32 AM

More money than brains?
Lack of training?
Lack of understanding?
Lack of adult supervision?

A more common event than many will admit and thanks to available technology, a far too easy event to replicate pretty much anywhere.

speedracerntrixie 06-06-2019 08:21 AM

For as long as I have been in the hobby there have always been guys flying airplanes beyond their skill level, now we have the internet where guys can comment and attempt to advise beyond their skill level. Of course over inflated egos at play in both circumstances. The thing that really needs to be taught better is airplane set up and trimming. What I saw in the video is an airplane with adverse yaw, too much control throw and maybe too nose heavy. That combination when flown too slowly always ends the same way. Had the airplane been set up better the pilot may have had sufficient skill to keep out of trouble.

daveopam 06-07-2019 01:39 PM

^^^^^^^^^ Like that answer

David

BarracudaHockey 06-07-2019 02:04 PM

I always comment beyond my skill level :)

speedracerntrixie 06-08-2019 06:39 AM


Originally Posted by BarracudaHockey (Post 12529838)
I always comment beyond my skill level :)



Ah yes Andy but the difference is that you and I can admit that no matter how long we have been doing something we remain open to learning more. Unlike some guys who " know everything " because they have read a few books and once built a Sig Kadet. Some even go so far as refuse to learn or accept information because they don't like where the information is coming from.

daveopam 06-08-2019 09:47 AM

Remember the good ole days when after you dumb thumbed one in you could yell out" I got hit ! "

David

speedracerntrixie 06-08-2019 10:31 AM

Nope, I have NEVER crashed...........LOL

scale only 4 me 06-10-2019 05:17 AM


Originally Posted by daveopam (Post 12529967)
Remember the good ole days when after you dumb thumbed one in you could yell out" I got hit ! "

David

LOL,, you trying to say there are guys is this hobby not able to admit when they're wrong or ever make mistakes? :D

scale only 4 me 06-10-2019 05:18 AM


Originally Posted by Appowner (Post 12528183)
More money than brains?
Lack of training?
Lack of understanding?
Lack of adult supervision?

A more common event than many will admit and thanks to available technology, a far too easy event to replicate pretty much anywhere.

The expression I use is,,, "some people have more Dollars than Sense" ;)

RCFlyerDan 06-10-2019 10:26 AM


Originally Posted by daveopam (Post 12529967)
Remember the good ole days when after you dumb thumbed one in you could yell out" I got hit ! "

David

In the 27, 53, and 72 MHz days, I got hit!!! I got hit!!!

foodstick 06-11-2019 06:34 AM

I also heard ,,,,, "I ain't got it !" ..... quite a few times...

You know the crazy thing is if you have any first hand knowledge of a "INFAMOUS " rc crash on video.. and you try to figure it out ... some people will never listen ... they just accuse the pilot of error. A buddy of mine had a Triple engine Italian bomber (Cant Z) crash... It went viral for awhile.. The kit was awful.. everyone that flew it crashed it..until people started figuring out all the problems with the kit.. even then it flew poorly. But everyone was ready to blame the pilot. I think my friend was the first one in the air for that kit.. The abuse he took online almost ended his flying...

Appowner 06-15-2019 03:01 AM


Originally Posted by RCFlyerDan (Post 12530399)


In the 27, 53, and 72 MHz days, I got hit!!! I got hit!!!

If you think 2.4 is immune to interference (which is what a hit is).....................

Almost 60 years flying on 72 and I have never been hit hard enough to cause a crash. But I have seen a lot of brown outs on 2.4 systems. Some of which cause crashes. Part of flying is also knowing the radio environment you're flying in. I dare say, most do not!

Vortrog 06-17-2019 07:37 PM

Thats pretty bad disorientation if that was the case

speedracerntrixie 06-20-2019 08:26 AM


Originally Posted by Vortrog (Post 12532018)
Thats pretty bad disorientation if that was the case


I doubt that was the case here. If you look closely the airplane actually snap/stalled twice. Once that took it into the spiral from horizontal flight and again just before impact. Just a poorly set up airplane that was flown too slow. The pilot was also holding a bunch of up elevator the entire time which just kept the airplane in a deep stall and caused the second snap.

Radio interference is something many guys should understand a bit better. I have seen installs that sent a chill down my spine. One case even had an antenna taped to an ESC. Interference and brown outs are not the same thing. A brown out is caused by a dip in voltage going into the receiver. More common with Spektrum as their critical voltage on the RX is about 4.5V. I strongly suggest running 6V batteries on any brand of 2.4GHZ systems. You should also always have enough capacity so that under high loads the voltage will not dip more the a couple tenths of a Volt. Unless you carry a Spectrum Analizer with you to the flying feild it is almost impossible to know what RF is in the area. Common sense would dictate that the more Urban your environment the higher your noise floor will be. Range checks are very useful. I always range check prior to a maiden flight, after replacing any electrical component in the airplane and when flying at a new site even if the airplane has been glitch free for hundreds of flights at the home field.

Desertlakesflying 06-21-2019 04:25 PM

Now that was straight up pilot error. I think Barracuda Nailed it.

I've flown many a Mustang and knew at take off and climb out it was over if he tried to turn, especially that sharp.

And.......
WHY DOES EVERYONE PUT 2 BLADES ON THOSE.... SMDH


All times are GMT -8. The time now is 12:54 PM.


Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.