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Old 11-25-2006, 07:21 PM
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Yakkin!
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Christchurch New Zealand
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A good reason not to buy cheap ARF's

Well, after a wee landing incident last Sunday I needed something to fly this weekend so I thought,
Quote:
I will get one of those cheap, quick to build arf jobs.
Roll around Sunday and it's time for the maiden flight-do all those last minute checks for the tenth time and away she goes!, needs a little bit of trimming but flys okay, do a couple of circuits and start to think about landing, Hang-on whats that big white thing floating down to the ground behind the plane(yep, you guessed it. A WING. ) The wing failed midspan in straight and level flight, nothing even remotely aerobatic about the flight until then. End result was a pile of sticks and an engine with a bent crankshaft.

DAMN.
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Old 11-25-2006, 07:23 PM
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Re: A good reason not to buy cheap ARF's

srry about the loss man - thats why i build em or strip the arfs and reinforce em
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Old 11-25-2006, 07:51 PM
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Help - I like helicopters
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United States, IA, Elk Horn
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Re: A good reason not to buy cheap ARF's

I've got a Lanier P-47 with some weak glue joints. The wing bolt down plate fell into the plane while trying to screw on the wing. I glue in the servo mounts a bit better. Then on the first taxi with it, one of the landing gears leans in. The retract servo rails came loose in the wing. The landing wasn't 100% perfect & one of the retracts rips out of the wing. I've glued about everything I can get to now. It flies really nice - just could use better glue!
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Old 11-25-2006, 08:07 PM
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Yakkin!
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Christchurch New Zealand
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Re: A good reason not to buy cheap ARF's

The guy that I bought it from is making some pretty big claims on his website about the cababilities of these planes ...

http://extremerc.co.nz/index.php?mai...roducts_id=214

From what I saw today the first time you pulled into a loop the wings would "clap Hands"...

I think I might take him to task about it and see what happens.
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Last edited by coaster; 11-25-2006 at 08:08 PM. Reason: Wrong link
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Old 11-25-2006, 08:18 PM
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Re: A good reason not to buy cheap ARF's

Lets hang on and before we go any further, let us know what happens after you contact him. Gotta give him the benefit of the doubt. BTW,welcome to the Giants.
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Old 11-25-2006, 10:28 PM
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Re: A good reason not to buy cheap ARF's

Bummer man.

At least it wasn't an expensive or well loved model

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Old 11-25-2006, 10:56 PM
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Re: A good reason not to buy cheap ARF's

Wheres the wing spar? Ive seen this before a few times. Buy a sig Kadet you wount have that problem again.
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Old 11-26-2006, 12:36 AM
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Yakkin!
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Christchurch New Zealand
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Re: A good reason not to buy cheap ARF's

Yep, that's basically the problem. Two tiny little bits of wood serving as a spar, I have a Great Planes PT40 but it was out of action for the time being.
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Old 11-26-2006, 01:04 AM
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GRAVITY SUCKS
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Re: A good reason not to buy cheap ARF's

hate to be negative here but, that looks like a trainer and if you were doing loops and stunts, those wings arent made for that. i have seen the same thing happen at our field with the same results. if you saw the wings almost clap as you say in a loop that was telling you something right there. rubber bands have a nasty habit of letting the wing sepparate from the fuse and slamming down on the saddle and that is where or i should say when the damage is done. i 'am sorry about the loss though. been there
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Old 11-26-2006, 01:56 AM
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Yakkin!
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Christchurch New Zealand
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Re: A good reason not to buy cheap ARF's

Never got a chance to do anything but take off and one and a half circuits!. The wing failed at a point about one third out from the centre. Not the sort of thing you expect on a brand new plane on it's first flight. My PT40 was more than capable of basic aero's with the right pilot. No reason to expect any thing different from this machine.

You are right in that a trainer is perhaps not the best thing to be throwing about the sky, but we all have to start somewhere and work our way up to a large scale machine .
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Old 11-26-2006, 02:00 AM
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Re: A good reason not to buy cheap ARF's

While it was only a trainer, you would think that perhaps they would still have to be built kind of stout to take the YANK AND BANK style the newbie tends to have. I have taught more than a few who have a tendancy to bury the sticks in corners on accident.

keep us posted on progress with them...

and come on... If Bill Hemple can land with one wing on his 260, There's no reason you cant take a lowly trainer home safely on one appendage...
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Old 11-26-2006, 02:07 AM
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Yakkin!
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Christchurch New Zealand
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Re: A good reason not to buy cheap ARF's

I did think about it and tried to at least keep the nose up so I didn't wreck my engine, but I think I was lacking in power (and skill) to pull off a knife edge landing.

Maybe next time!!!.
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Old 11-26-2006, 02:16 AM
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Yakkin!
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Christchurch New Zealand
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Re: A good reason not to buy cheap ARF's

Okay, Just got a reply from the guy who sold it to me...

my email abreviated...

Quote:
Took it down to the field today for it's first flight and after one circuit
the wing broke off outboard of the wing joiner slot, There were no
aerobatics involved just straight and level flight, The point where it
failed was not at the main wing join, it was at a point along the fully
built up wing. I am extremely dissapointed as the initial quality of the kit
looked quite good, however the build of the wing in this one was obviosly
not very good.
His reply...

Quote:
Hi
I am sorry to hear that.
I sold over 20 of these planes my self and we wholesaling 20 of these planes
to North every month. We had Hundreds of good feed back for these planes.
Not a signal person been suspicious of the structure or quality of these
planes.
And these planes have been highly recommended by aero clubs.
I am 100% sure with the quality of my product.
I crashed almost 60 planes in the last 10 years. I know what kind of hit it
required to bend the crankshaft of a OS engine.
I am sorry looks like you just having a bad day, I mean that airplanes all
about.

Sorry again.
What do you think?.
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Old 11-26-2006, 02:38 AM
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Re: A good reason not to buy cheap ARF's

I think thats a pretty crappy reply on his part
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Old 11-26-2006, 04:56 AM
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Re: A good reason not to buy cheap ARF's

I dont understand the part of selling 20 of these and wholesaling 20....How does that make it a 100 of goodfeed back.
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