HM mig-21 Display stand tip. - DA.C
 

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Old 09-26-2020, 05:41 AM   #1 (permalink)
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Default HM mig-21 Display stand tip.

I thought i`d share with you my tip for modifying the display stand for HM Mig-21`s, that`ll make them look even better when in flight.

A few years ago i purchased a HM Soviet Mig-21R and was frustrated that i couldn`t display it on the stand with the ELINT pod attached as the cradle is too shallow. What`s the point in having a 21R when you can`t have it`s pod attached, right? Which got me thinking. If i modified the stand i could also have the centreline drop tank fitted on my other 21`s. I think Mig`s look 100% better with these fitted, but with the supplied stand this was impossible. Not enough clearance. Luckily i had a spare stand to hand(!)

So this is what i did:

I had some 3mm hard plastic/styrene tube that i purchased from a model store, which i cut two equal lengths of 8mm. I glued a solid plastic rod about 2mm into one end of the tubes to make this end of the tubes solid. I then sanded this end into a semi wad cutter bullet shape on each so they fitted into the holes in the Mig`s wings.
I then reduced the diameter of the original cradle lugs by carefully filing them until the tubing fitted snuggly over. Then i super glued these on making sure they were vertical and the pointy ends fitted nicely into the wings.

Nearly done.

All what remained was to put the front part of the cradle into hot water and bend it carefully downwards(don`t break it) and straight into cold water to set it.
I suggest you test mount with the drop tank/pod before you bend it, to get the right angle you require.

Paint the tubing black, and Hey presto, You now have the ability to display your Mig-21`s in flight with centreline drop tanks!! They look a million dollars better.
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Old 09-26-2020, 07:22 AM   #2 (permalink)
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Default Re: HM mig-21 Display stand tip.

Here are some photo`s of the modified stand in action. First is my Syrian Mig with centreline tank using the modified stand next to my Iraqi Mig on an un-modified stand. Not much difference in height between the two.

HM mig-21 Display stand tip.-dscn2826.jpg
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Old 09-26-2020, 07:34 AM   #3 (permalink)
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Default Re: HM mig-21 Display stand tip.

This is my Soviet Mig-21RF with the modified stand and the Syrian Mig too.

HM mig-21 Display stand tip.-dscn2829.jpg


HM mig-21 Display stand tip.-dscn2827.jpg
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Old 09-26-2020, 07:37 AM   #4 (permalink)
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Default Re: HM mig-21 Display stand tip.

And finally the modified stand itself, un-painted to show the mod. Not much to it really. but improves the model no end i think you`ll agree.

HM mig-21 Display stand tip.-dscn2828.jpg
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Old 09-26-2020, 09:30 AM   #5 (permalink)
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Default Re: HM mig-21 Display stand tip.

Looks risky.
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Old 09-26-2020, 09:55 AM   #6 (permalink)
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Default Re: HM mig-21 Display stand tip.

Nope. I know what i`m doing. Posts are secure and don`t even need to be a tight fit into the wings if you get the balance right. The weight of the model is loaded straight down onto the posts, which in turn are mounted onto the original cradle. If the posts were angled then i agree there would be undue sideways force on the added posts. but there isn`t any. The drop tank is a tight fit anyway so the front part of the cradle isn`t going anywhere either.

Last edited by Carlo4; 09-26-2020 at 10:06 AM.
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Old 09-26-2020, 11:53 AM   #7 (permalink)
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Default Re: HM mig-21 Display stand tip.

Your solution looks to work for you and that’s a good self satisfaction feeling for you I suspect....as long as your happy with it.

Yes display stands for some situations, sometimes prove to be problematic... an Achilles heal. The topic has been discussed in previous posts.

My view is that there is no industry universal mount standard that could apply to all models....and imo there should be. My solution? A single threaded hole (female) tapped into the underside of the fuselage, preferably at center of gravity of the weight of the model. From that then the Manu can stylize any display stand they want...including the addition of a pivoting feature..... as long as the stand has a threaded stud (male) that will mate to the new universal industry standard threaded hole. Type of threading? Whatever some consortium of Manus agree upon ... metric or SAE.... (metric most likely)

Think of it as mating a tripod to a camera.... for the most part the mating of the camera to the tripod is an universal industry standard threaded hole to threaded stud.


Below are valiant efforts by Manus to provide some sort of universal (for their own models) display stand. I don’t have any to speak to, maybe someone in the forum has.

HM mig-21 Display stand tip.-3bf1ff03-d62f-4135-9b21-9f84f58ab71c.jpg

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This Platz stand below is for any Manus models ... based on sticking magnets to the under belly and then mated to the magnets on top of the display stand stem.... novel idea......hopefully the magnets that stick to the plane, the sticky portion, is easily removable without leaving residual sticky stuff or pealing off plane paint....

HM mig-21 Display stand tip.-05b8ddb1-c8c0-4f4c-be35-faacab90081c.jpg

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Last edited by Blues Boy; 09-26-2020 at 12:02 PM.
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Old 09-26-2020, 01:25 PM   #8 (permalink)
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Default Re: HM mig-21 Display stand tip.

Yes absolutely. Unfortunately, none of the above would work for the Mig-21. Although i was nearly tempted to drill out the jet pipe on one to fit the new HM stand or JC one!

The threaded idea is okay if you don`t use the stand too often, as die-cast models are only made from soft metal and the female threads will soon dis-appear with disastrous results. Again there is no room for this type with a Mig-21 with centreline tank. Options are limited so it`s up to us all to come up with solutions to these problems i guess.
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Old 09-26-2020, 01:43 PM   #9 (permalink)
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Default Re: HM mig-21 Display stand tip.

Quote:
Originally Posted by Carlo4 View Post
The threaded idea is okay if you don`t use the stand too often, as die-cast models are only made from soft metal and the female threads will soon dis-appear with disastrous results.....
There is a solution to making a weak point into a strong point as shown below....

HM mig-21 Display stand tip.-8470c197-a9fa-4035-a81c-ab8a07cffb9c.jpg

Also a Helicoil:

HELICOIL® is the preferred choice of many leading engineers worldwide who need to strengthen, reinforce or repair screw threads in soft alloy components. HELICOIL® inserts ensure high-strength threads, transferring forces from flank to flank into the holding thread.


It would also help to mould in thicker zinc metal internally just in the area of the mating so that it’s not so thin at the point of attachment as well.

But no telling the cost feasibility would be .... It’s a future model molding idea

Good luck with what you have already done...

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Last edited by Blues Boy; 09-26-2020 at 02:45 PM.
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Old 09-27-2020, 07:59 AM   #10 (permalink)
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Default Re: HM mig-21 Display stand tip.

Cheers. I do like to have a good tinker!
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