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dural undercarriages

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angus cargill 128/02/2018 12:16:01
4 forum posts

can anyone suggest where can I obtain duralumin or hardened aluminium alloy to make undercarriages----or indeed other useful metal bits and bobs.

cymaz28/02/2018 22:23:26
9022 forum posts
1187 photos

THIS might be of use....see what you think

David Ovenden28/02/2018 22:34:02
352 forum posts
17 photos

I got mine from Noggin End metals. Think it is called 2014 grade ali.


They do more sizes than those listed on the site. Worth ringing or emailing to discuss what you need.

Edited By David Ovenden on 28/02/2018 22:36:02

onetenor28/02/2018 23:15:50
1901 forum posts

This list may help-----------

The price range is vast.

angus cargill 101/03/2018 11:34:10
4 forum posts

thanks to everyone that replied, it all helped------I am going to try Noggin and Brindley metals----turns out that the best grade is 6082, its a medium strenght constructional alloy so it sounds fine.

Denis Watkins01/03/2018 12:27:30
4181 forum posts
84 photos

DB Sport and Scale, will make you one to your plan


David Davis01/03/2018 12:45:40
3590 forum posts
658 photos
Posted by Denis Watkins on 01/03/2018 12:27:30:

DB Sport and Scale, will make you one to your plan


Yes they've made one for my eight-foot Senior Telemaster, double layered for the size and weight of the model.

angus cargill 102/03/2018 08:55:30
4 forum posts

your telemaster is superb , but I just can't justify £60 plus for an undercart.

Ernie02/03/2018 09:33:31
2519 forum posts
21 photos

Hi Angus, It is remarkably easy to make one from carbon fibre....Stronger and to my eye really classy


Robert Welford02/03/2018 10:02:34
175 forum posts
4 photos

What aircraft is it for? Ben Buckle does one for a Super 60 for £9.90.

Ron Gray02/03/2018 10:16:05
1685 forum posts
458 photos

@Ernie - how? Really interested to know as I've never made CF stuff before.

Ron Gray02/03/2018 11:38:27
1685 forum posts
458 photos

Found out how now, YouTube!

Ernie03/03/2018 08:53:48
2519 forum posts
21 photos

Hi Ron, I'l dig out some pix


Ron Gray03/03/2018 09:59:06
1685 forum posts
458 photos

Thanks Ernie, never too late to learn!

angus cargill 103/03/2018 17:51:32
4 forum posts

hi guys good to see this has generated some interest. I have now gone around in a few circles and it appears that since the mass demise of kit/scratch building hobby , some items have become very difficult to obtain. SO----the strongest alloy for undercarts etc. is 2014 but which is nearly 3 times the price of the next strongest which appears to be 6082 grade. The likes of Noggin supply offcuts at reasonable prices ----but they tend to stop at 300mm ---which is a tad too short for undercarts at '40 plus' size aircraft. Unless you make it in two parts ( and this is my current plan) . I did get a price for 2014 at 600mm long by 3x 150mm which would do a few-----£190 +pp. ---6082 was £65 for a piece a bitty smaller

no good for a one off, thus its easy to see why DB ones cost £34 as a starting price. Yes CF would make good ones without too much difficulty -------but I really wanted the retro look. Ernie i think some photos of the process would be great!

McG 696903/03/2018 18:06:14
3021 forum posts
1143 photos

Hi Angus,

Apologies, but I really don't 'see' a "retro-look" in a piece of bent Dural... sad

If you want 'retro', why not going the piano wire route? With a triangular plate of ply of styrene - à la Cub - on top? Or with a nice teardrop shaped laminated ply/balsa to the main and secondary legs? cool

Just my two-euro-cent.




Edited By McG 6969 on 03/03/2018 18:19:15

Former Member03/03/2018 18:30:44
1322 forum posts

[This posting has been removed]

Don Fry03/03/2018 18:47:22
4557 forum posts
54 photos

In fairness, I've done a few debris fields, rusulting from contacts with the ground, and the glass/carbon undercarriage always survives. Come to think, I can't remember I have bent duralumin. Broken everything else, but the undercard goes in the spares box. And I can't even imagine one failing in a sub 7 kg airframe.

Don Fry03/03/2018 18:51:59
4557 forum posts
54 photos

Angus, have you tried Carbon Copy, they do a wide range of glass, and carbon look undercarriages on e Bay. Glass can be painted, or to mollify Chris, sheeted in balsa, sanded off so just the colour is left, then varnished.

Richard B (DB Sport and Scale Ltd)04/03/2018 00:41:09
35 forum posts
1 photos

Just for info, the starting price is not because it's the strongest alloy, i use the same as I sell on the website and use for all the plan packs. I've not heard of any having 'pancaked' from everyday use (on some large models too). Rather the price is down to the time it takes to make some templates/draw it from a wide selection of different drawing styles that people use, cut it, saw it to shape, grind/sand it, heat it, leave it, bend it, check it, leave it again, check it, redo if split or uneven due it being a one off. Sometimes buff it up but that depends.

Even a 'simple' undercarriage is not a quick process. And that's the VAT inclusive price too. I'd have to say it's more of a service than a fortune maker. Also note, you can buy a bunch of different sized undercarriages from within the plan packs (cheaper as I'll make a few at a time - still goes wrong sometimes though) although admittedly, you'd have to guesstimate the size from the model wingspan. I'll list them all at some point, it's on one of my ToDo lists. I'd have to look at the master ToDo list before finding which other ToDo list to add it onto

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