The Crash Thread

[Olie]

Well My plane Had its first Major cash today. Very unhappy about it too. Hand Launched it, it flew about 10m on a 20 degree angle then dived straight into the ground at full throttle.

Not happy, havent realy had that much luck with this plane, its been in the air about 1min 30 secs in total. its had lots of strange steering issues, (like full flaps up and it still didnt gain altitude, full left and it was still turning right.)

and onto the pics. looks like maybe a fuslage write off !rant

http://i121.photobucket.com/albums/o235/Olie1584/IMG_0914.jpg
<span class='smallblacktext'>[ Edited ]</span>

[SuperRoo]

Bugger!!!

If the motor and gearbox are still useable it might be rebuildable with the help of some wood and epoxy.

Its times like this that you really need a expirienced pilot around to inspect your build and check to make sure everything is ok before you fly it. Sometimes you can also get them to fly the plane up to a safe distance in the air then hand the controls over to you so you can have a fly around.

[remotebandit]

damn , that copped it in the backside no Vas . Its not as bad as it looks though , it wil glue up nice and easy as its a clean break and that engine cowl thats cracked can be ripped off anyway , you dont need it , in fact probably better to rip it off so it balances a bit of the weight from the glue .

If it help at all oli , pretty much every plane i had till about the 15th , i crashed in learning , unfortunately ARF wasnt heard of so i built them all and in my day flight sims didnt exist but mate buy 1 , you can get them with controlers these days for under $40 delivered .

As far as the crash thread ... lol ... ive had .40 size planes that have hit the ground so hard that the fuselages compressed down to under ruler size

[Olie]

Well an update, Some Thread lock (worked quite well) and some gaffer tape seems to have fixed it nicely. The cowl is gone, it was way beyond repair.

If tomorrow is good I might take it out.

Seems like it was caused by a fooked battery. I went to discharge the rest of it, it ran flat out for about 30secs then cut out and then re-started. checked with my second pack and it didnt happen.

[stone]

Well My plane Had its first Major cash today. Very unhappy about it too. Hand Launched it, it flew about 10m on a 20 degree angle then dived straight into the ground at full throttle.

Not happy, havent realy had that much luck with this plane, its been in the air about 1min 30 secs in total. its had lots of strange steering issues, (like full flaps up and it still didnt gain altitude, full left and it was still turning right.)

and onto the pics. looks like maybe a fuslage write off !rant



Sad to hear sport,teaching your self to fly is hard I know,bin there smashed that.

Your plane needs to be "trimed" to fly strait. There can be any number of reasons it want to turn right,I'll start with the most likley causes.

Tail plane and fin alingment, look strait down the fuselage from front to back,with the fuse bottom level the tail plane should also be level,and the fin should be at 90 degrees to the tail plane.

Warped wing,hold the wing in you hand out in front of you,look stait down the bottom of the v shape,Ie the center of the wing,you want to just see the bottom as you look at the front of the wing,now look at the tips,can you see the bottom of one half more than the other? If so its warped or glued incorrectly when/if the halfs need to be joined.
So if it turns to the right the left wing tip will be lower at the rear.

Center of Balence,or C of Gravity, CG should always be checked,MOST IMPORTANT! but often we dont check the balence from side to side,If the right wing tip is heavy that could add to the problem.

Thrust line,because a prop almost always turns anti clockwise this make the plane want to turn left,so the norm is about 1-2 degrees of right thrust,and 1-2 degrees of down thrust for a high wing plane.If you have way more than 2 degrees of right thrust it might try to turn right.

Shit mate I could go on and on,maybe check them first an let us know what you find.

Aye an dont worry about crashing,it happens,it will happen again,and again.one day you'll whipe out you fav model and find you wont be that fussed,because youve got heaps more in the shed!! !amazed

[stone]

Oh,and ,by flaps you mean elevator.Flaps are on the wing between ailerons,your plane dont have them but flaps produce lift by lowering the rear of the wing,at the expence of drag,which is ok because you only use the to land and somtimes to take off,what it does is lower the stall speed so the plane dont drop out of the sky"STALL" on landing as you slow the plane down befor touchdown.

If you had full Elevator and it wouldnt climb most likley you didnt check CG and it was WAY to nose heavy.then it Stalled and droped out of the sky.

[stone]

As far as the crash thread ... lol ... ive had .40 size planes that have hit the ground so hard that the fuselages compressed down to under ruler size

LOL,I lost count how many times ive turned a good plane into confetti after hitting a tree,fence,shed,powerlines.......
!lol

[remotebandit]

yep , and its not the plane your worried bout losing , its the engine thats all cracked up and throw away , its the receiver thats finished ( allong with your favourite channel Xtal y have to buy seperately ) its the servos you strip and finally its the hassle of having to re-install all the shit into a new plane

[stone]

ROLMFAO, Oh so true,oh so true. Ive got a motor that belted somthing hard enough to crack the crank case where the carb bolts go through,we drilled right through the carb so the bolt pased from the case throug the carb an out the other side. It looks munted but it still runs.

[SuperRoo]

Olie, throw up some pix of your plane before you fly it next. You no, some before shots for us mate :p

[Redrum]

Olie, I bought one of these for my girlfriend... nice 3ch trainer. I'm far from an experienced pilot and havent flown much in the last 7 or 8 years, when I test flew the plane I found that when the ACT (Anti Crash-Technology) is enabled it became very difficult to handle, the sensors suck and the plane becomes confused easily, especially when trying to climb or when banking into turns. If it detects you are climbing too sharp, it will cut the throttle and restrict your elevator movement (Same with turning, it will restrict your rudder movement). The ACT is crap, turn it off and you'll be fine. Its should be called Automated Crash Technology ;)

I've had 2 or 3 near misses when at low altitude and always been due to someone bumping the ACT into the on position. (probably me when handling the remote)

Hope you can fix her up :)

[Redrum]

Also, you might find it safer to take off from the ground, that way if you find your struggling to controll it you can cut the throttle and land it. They seem to take off/land on shortish grass pretty well.

[stone]

Personaly I think all that gyro and the like training shit is little more than advertising,even if it does work! In reality its NOT teaching you anything,other than puff you up so you think you can fly. If you use to much elevator at to slower AIR speed you Stall and CRASH,then you go SHIT I did that and it crashed.If you use to much elevator and the training aid kicks in and stops that,you mossy on flying none the wiser,and learning nothing.Then you get a nice real rc plane and smash the **** outa that.

[Olie]

Well I took it out yesterday morning and managed to get 2 flights and landings in before the wind kicked up and i had to make an emergency landing about 500m-----> that way.

Yeah I think I might turn it off, with overcast it seemed to react rather strange when it passed from light to dark.

[SuperRoo]

It says something about that in the manual. Also dont fly it over water or wet ground with the ACT on.

[Redrum]

Even in ideal conditions (As far as ACT is concerned) it's effect is hardly desirable, I totally agree with stone. Its just another gimmick to sell the product :/
<span class='smallblacktext'>[ Edited Thu Jul 26 2007, 05:40PM ]</span>

[stone]

Olie,good to hear you had a couple of sucessfull flights.Keep at it champ.

[Olie]

So Today i had a good flight, was fairly windy, but managed to keep it in the air most of the day.

Towards the end a massive gust inverted me and sent me to the ground. This dislodged my engine mount again.

On my way home I had a great idea, I stopped into bunnings and got some expanding foam.

With some careful moulding, squishing and a huge mess I created my new nose and firewall.

I HIGHLY recomend this stuf for anyone repairing foamies. Its quite easy to work with and sets firm but still squishy enough to resist falls.

and here the pics of the finished product (minus prop)

http://i121.photobucket.com/albums/o235/Olie1584/DSC00251.jpg
http://i121.photobucket.com/albums/o235/Olie1584/DSC00252.jpg

[remotebandit]

ohhhh uhhhm wellllll lets see 25 years of crashing and ive never thought of this .... Thats a bloody excellen idea Olie .

[stone]

Way to use ya noggin mate! So the fuse is foam is it,Ithought they were plastic? Great to hear the expanding does'nt eat the other foam.
!clap

[Olie]

Just fixed some holes in my wings with it as well, should protect the rest of the wing from getting damaged by the rubber bands on hard landings.

Also looking at those who have done the brushless conversion.

[Olie]

Yeah, certainly doesnt eat it. Its actually a similar polymer, it made mine go a little soft but it hardened up again in no time.

[Olie]

So I had a crash today. It was a huge one. But lets start at the begining.

Was out having a lovely day, heaps of flight time, fairly good conditions were helping alot.

Was in the midst of telling someone I'd proerly still be here once they had gone off to get a new model from home. when I got into a bit of a spiralled dive, soi pulled up and increased he throttle when "SNAP" my wings tore in half and it just plummeted towards the earth.

All I could think of was "my reciever!"

heres some pics:
http://i121.photobucket.com/albums/o235/Olie1584/DSC00260.jpg

http://i121.photobucket.com/albums/o235/Olie1584/DSC00259.jpg

[remotebandit]

you poor bastard , no amount of foamfills gonna fix that up now

[Olie]

aye...
I'll get a new fuse tomorrow.

in the mean time....

http://i121.photobucket.com/albums/o235/Olie1584/DSC00264.jpg
http://i121.photobucket.com/albums/o235/Olie1584/DSC00263.jpg

[Olie]

CA Glue for the cracks and foam to fill in the holes.
a bit of balsa wil be added for strength in the weak spots and a long piece of cube balsa from wing to wing.

turn this one into my faster flying version.
assuming it still flys after mods.

[Olie]

NEVER!!!!!

It shal live on as my hidious Frankenstien Plane!

muwahahahhahahahahahaha

[stone]

Ah hahahaha,it happens to the best of us mate.Never mind.

[remotebandit]

Not me , ive never had a crash in my life !silly

[Olie]

Well I'm thinking of picking up a different plane while i'm there and reverting the cub back to stock.

looking at a ultra fly PC-9 or similar. I'll go down and have a look.
Dont want anything to hard to put together.

[Olie]

http://www.modelflight.com.au/ultrafly/ultrafly_pc-9_rtf.htm

linkage

[Coonak]

Buddy of mine bought this combo a few months back..... He wasn't real happy with it. He said it was super unstable and couldn't get a decent landing out of it unless he was doing over 100kph. I'd say being a low wing wouldn't help much, but at that price complete it's prolly still worth a look.

Cheers,

Mick
http://www.modelflight.com.au/ultrafly/ultrafly_pc-9_rtf.htm

linkage

[stone]

In my opinoin mate,and Im not baggen ya,but its way to early in your flight training for a low wing set up like that. Mid and Low wing planes dont self recover out of a turn,they go only where you tell them to and as soon as you have a brain fart its all over,then you'll be trudging back to the hobby shop for anouther high wing plane.

If its diffrent you want ,thats cool.We all like new planes.there are a huge amount of diffrent high wing planes,not nesaseraly trainers,but forgiving all the same.
I highly recomend built up balsa planes over all foam ones with the exception of EPP foam,Im yet to buy a decent size EPP model but its realy rubbery and they take a pounding. Other than EPP I pesonaly think foam is shit,even though Ive got foam models.Foam just doesnt FLY like a propper balsa jobby. There are a heap of "built up" park flyers out there now.

[Olie]

http://www.modelflight.com.au/ultrafly/ultrafly_tutor_32e.htm

comes with ailerons for when I feel i need to learn them.

[stone]

Nice mate,thats what ya want. Hight wing ,trike undercarage,optional ailerons,laser cut built up structure.
So when will it arive?

P.S. VID OR BAN !!! LOL

[KingBob]

http://www.youtube.com/watch?v=OeTDaWf6fps

[Olie]

OMG

damn, that plane went off!

[PapaSmurf]

Nothing worse than watching all that hard work spear into the earth like a dart.

Gotta feel for the guy.