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Ikarus Meteor 1/3

Let us all watch your new project progress.
MartinE
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Re: Ikarus Meteor 1/3

Post by MartinE »

Hi Peter, I like that wing fixing idea. Getting access to tighten it is the key.
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VinceC
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Re: Ikarus Meteor 1/3

Post by VinceC »

Here are a few unpublished photos of the Meteor from the event at Örebro 1950
Attachments
B-28.jpg
B-36.jpg
C-10.jpg
C-11.jpg
C-12.jpg
C-23.jpg
C-24.jpg
Jilles
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Re: Ikarus Meteor 1/3

Post by Jilles »

when did they bent (gull) the wings, I only know the meteor with straight wings
Dopieman1
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Re: Ikarus Meteor 1/3

Post by Dopieman1 »

Hi, this is not the Ikarus Meteor but the Cijan Obad Orao. Same designers as the later Meteor and quite similar fuselage. By the way, what a beautiful plane this is!!
24263FFA-153B-45C4-83E4-AA4CC3ABDFE7.jpeg
Last edited by Dopieman1 on 09 Dec 2021, 11:39, edited 3 times in total.
Dopieman1
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Joined: 09 Mar 2018, 09:42
Location: Den Bosch

Re: Ikarus Meteor 1/3

Post by Dopieman1 »

Peter Balcombe wrote: 06 Dec 2021, 22:06 Hi, I suggest that you definitely need some form of wing retainer, rather than rely on tape.
I have fitted Multiplex Unilocs to 1/4 scale models, but have found that they can pop out unintentionally with bigger wingspan models.
I’m not sure how easy it may be to fit given where you seem to be with your build, but I have found that the simple thin aluminium plates shown below seem to work well. They provide enough clamping resistance for normal use, but will pull off in the event of a major force.


F354E993-733B-41E9-B6D7-C078F0DF1DA6.jpeg


F8A56625-73C3-4C84-A2F3-B892EBB047FD.jpeg


These pics are from a 1/3 scale Olympia where the tab was fitted to the wing root rib & access to the fuselage fixing was easy.
I’m currently using a similar arrangement on a 1/3 scale Jaskolka, where a bolting plate has been installed inside the fuselage wing root stub & the clamping bolt will be inserted from underneath.
Another alternative is to have a plate in the wing & the tab protruding from the fuselage, inserting the bolt from under the wing root.


7CF6B90C-9C6F-4157-9C22-B726A47649CD.jpeg


I would wait to try your brakes when they arrive as I am a firm believer that ‘if something can go wrong, then it will happen sometime” ;)

Another possible method is a a strong elastic band or spring going through the fuselage, connecting together hooks on each wing root.

Hope the above helps.
Hello Peter,
Many thanks for your good suggestions for wing fixing. It gave me some good ideas! Not yet decided but I consider to copy the method where a metal plate is protruding into the fuselage where it gets locked with a bolt. I can still access that location. Pictures will come when its done.
9C43431A-A5B6-44C4-99B7-6ECF0C911440.jpeg
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Cliff Evans
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Re: Ikarus Meteor 1/3

Post by Cliff Evans »

There is a plan for the Cijan Obad Orao at 1/4 scale drawn by Jim Owen in the plans section.
https://lasercutsailplanes.co.uk
https://patteaklegliders.co.uk
Dopieman1
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Re: Ikarus Meteor 1/3

Post by Dopieman1 »

Cliff Evans wrote: 09 Dec 2021, 08:32 There is a plan for the Cijan Obad Orao at 1/4 scale drawn by Jim Owen in the plans section.
Cliff, I wait for a 1/3 CNC kit of this beauty! 8-)
Last edited by Dopieman1 on 11 Dec 2021, 17:00, edited 1 time in total.
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Peter Balcombe
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Re: Ikarus Meteor 1/3

Post by Peter Balcombe »

If you do use the suggested tongue & clamp wing retention method, you my be interested in the tip Jilles gave me about providing a “washer” which couldn’t be lost in the grass.
Epoxy a captive nut (with spikes removed) to your retention bolt ;)

wing retaining bolt.pdf
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Dopieman1
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Re: Ikarus Meteor 1/3

Post by Dopieman1 »

Peter Balcombe wrote: 09 Dec 2021, 13:46 If you do use the suggested tongue & clamp wing retention method, you my be interested in the tip Jilles gave me about providing a “washer” which couldn’t be lost in the grass.
Epoxy a captive nut (with spikes removed) to your retention bolt ;)


wing retaining bolt.pdf
Very good idea! But I would like to keep the hole in the bottom of the wing shroud as small as possible. So maybe glue the captive nut on a bracket under the wing tongue. Wings would be fastened by just turning in the bolt..Or do I miss something?
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Peter Balcombe
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Re: Ikarus Meteor 1/3

Post by Peter Balcombe »

Hi,
You need a captive nut or similar as normal on your bracket (which is behind your wing tongue) in order to screw your bolt into & clamp the tongue between bolt head & bracket).
Normally you would put a washer under the bolt head to provide a bigger clamping area onto the tongue.
These (thin) washers often fall off when rigging the model & get lost in the grass.
The modified captive nut screwed onto the bolt is just one way of fixing a “washer” disc to the bolt so that it cannot fall off. Another way is to use a flange headed bolt, or maybe try to epoxy a washer to the underside of the bolt head.
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