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Old 12-22-2020, 11:14 AM   #1 (permalink)
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Default The A330-200 models

My A330-200 models tip over. Anyone who has the same irritation. I was thinking of adding a small weight on the front landing gear to keep them straight. I have all my models on the landing gear.
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Old 12-22-2020, 12:45 PM   #2 (permalink)
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Default Re: The A330-200 models

I have a bunch of models that have offset centers of gravity. Sometimes adjusting the main gear helps. Others are lost causes.

G-BNWA British Airways 767-300 Delfltblue Daybreak (Netherlands) Tail Strike by Ukjohna, on Flickr
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Old 12-22-2020, 03:38 PM   #3 (permalink)
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Default Re: The A330-200 models

You could also use a small portion of 'blue tack' or 'sticky tack' as it's called sometimes. I found some that was white instead of the typical blue. Just put some under the nose gear. I've secured loose antennas with it as well so I don't get glue on the fuselage.
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Old 12-22-2020, 03:48 PM   #4 (permalink)
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Default Re: The A330-200 models

Which manufacturer? My Gemini Hawaiian has no problems keeping the nose down; my only problem model is Gemini's Dash 8-100, which can only be kept level by rotating the flat spot on the main gear tires a bit towards the nose, which moves the fulcrum perhaps one millimeter aft.
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Old 12-22-2020, 08:11 PM   #5 (permalink)
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Default Re: The A330-200 models

Quote:
Originally Posted by Meneer Guggenheimer View Post
My A330-200 models tip over. Anyone who has the same irritation....
My Gemini A332 Hawaiian (G2HAL670) has the tendency to tip on its tail, when sitting on its own undercarriage, so I display it on its stand.
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Old 12-22-2020, 08:40 PM   #6 (permalink)
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Default Re: The A330-200 models

A320’s tend to flop onto their tails as well. I was going to get small blocks of clear arcrylic made, molded to the underside of the tail section of the body so the body sits right in there and being clear you won’t notice the block under the tail section when on display.
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Old 12-22-2020, 09:58 PM   #7 (permalink)
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Default Re: The A330-200 models

I have a JC A320 that would tilt back constantly, after trying two sided tape (worked but looked like crap), foam on the shelf (didn't prevent tilting, looked like crap) I check my shelf with a level and sure enough is ever so slightly tilted from front (higher) to back (lower). Putting it on a level surface solved the problem, the amount, less than 1 mm showed just how close the centre of gravity is to the hub of the main landing gear.
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Old 12-22-2020, 11:06 PM   #8 (permalink)
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Default Re: The A330-200 models

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Originally Posted by CdnAir View Post
A320’s tend to flop onto their tails as well. I was going to get small blocks of clear arcrylic made, molded to the underside of the tail section of the body so the body sits right in there and being clear you won’t notice the block under the tail section when on display.
Unfortunately this will make it a permanent tail sitter. Adding extra weight to the extreme rear is the opposite of what you want. Add to the front, remove from the rear. First make sure your shelf is perfectly level, or slightly tilted nose down if possible. You'd be surprised at how little it takes to get the C of G to where you need it. If the gear are fixed, you can slowly apply force on the mlg towards the rear of the model, keep checking until it sits upright by itself. If you're handy you may try removing the gear, remove any dried on glue, then glue back on with a minuscule tilt towards the rear, or slide as far back as possible if there is currently a gap.
If the gear are removable, make sure the mlg's are in their proper spot, slide as far towards the rear as possible, and make sure there's no crud in there. You may have to file the back end of both mlg's to get a small rearward tilt

Good Luck
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Old 12-23-2020, 01:34 AM   #9 (permalink)
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Default Re: The A330-200 models

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Originally Posted by Mr Burns View Post
Unfortunately this will make it a permanent tail sitter. Adding extra weight to the extreme rear is the opposite of what you want. Add to the front, remove from the rear. First make sure your shelf is perfectly level, or slightly tilted nose down if possible. You'd be surprised at how little it takes to get the C of G to where you need it. If the gear are fixed, you can slowly apply force on the mlg towards the rear of the model, keep checking until it sits upright by itself. If you're handy you may try removing the gear, remove any dried on glue, then glue back on with a minuscule tilt towards the rear, or slide as far back as possible if there is currently a gap.
If the gear are removable, make sure the mlg's are in their proper spot, slide as far towards the rear as possible, and make sure there's no crud in there. You may have to file the back end of both mlg's to get a small rearward tilt

Good Luck
All good advice but 2 things:

1- I think you misunderstand me when I say about adding a clear arcrylic block to the back but I didn't really explain myself clearly. What I meant was I am thinking of getting the place that cuts my extra Ikea DeTolf shelves for me - an arcrylic place that makes custom pieces and get them to make me a few small acrylic blocks that have a little groove molded in it that fits the undercarriage near the tail, however the block wont be attached to the plane. It is just so the tail of the model can loosely rest on it. I got the idea from a few 1/72 Corgi heavy and medium bombers that have a small plastic or acrylic tail support you can rest the tail on if displayed in a static position. You don't notice the clear support on display and it does the job without any monkeying around.

2- I don't think I have the modelling skills to remove and re-attach and bend landing gear so the model sits perfectly, I am a little ham handed so I can see broken landing gear everywhere lol.
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Old 12-23-2020, 06:36 AM   #10 (permalink)
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Default Re: The A330-200 models

Thanks for all the tips. So the 767 have the same issues....have one on order.

I now have used some double sided tape for now. I do not want to bend the landing gear as I am nervous that I might break them. The A333 has the same issue by the way.

I do think the manufactures who make them should be aware of this and doe something about it. They hang on the stand to.

They should make them less tale heavy. We pay more then enough for them.
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Old 12-23-2020, 08:58 AM   #11 (permalink)
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Default Re: The A330-200 models

This must be something related to the design of that specific model/mould though, right?

Theoretically every aircraft should be close to being in perfect balance, having the center of gravity only just slightly forward to keep some pressure on the front gears (And making sure the aircraft doesn't tip when boarding starts with the last rows).

However a real aircraft likely has a hollow tail for example - our models do not. So the model tail would be heavier than it should be compared to the weight of the whole body. That by itself may be enough to cause these problems if not properly corrected.

But honestly, that's part of the model making process right? And I would imagine that some manufacturers do keep this in mind when designing their models - by for example hollowing out the backside of the wings or something similar. I'm curious which manufacturers show this problem because I do, kind of, mark this up to a quality issue with that model/manufacturer..
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