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Author Topic: A1 International postal competition  (Read 2171 times)
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dosco
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« Reply #50 on: January 05, 2021, 09:05:06 PM »

Lincoln:
The "Gili Chopper" looks pretty neat.

https://outerzone.co.uk/plan_details.asp?ID=8489

https://outerzone.co.uk/images/_thumbs/plans/8489.jpg
A1 International postal competition
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lincoln
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« Reply #51 on: January 06, 2021, 06:19:32 AM »

It does, but it has a bit too much combined tail and wing area, assuming the figures on the plans are correct. If I remember correctly, the max is 18dm^2,which works out to 279 in^2. And then there are all those infernal diagonal bits.... Also, when did appear? I don't see a date. Despite all this, if you build one, I promise to admire it.
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dosco
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« Reply #52 on: January 06, 2021, 07:32:53 AM »

Lincoln:
If we're to believe Outerzone, a similar design, the Gili "Hatchet" was published in 1948. Just eyeballing things, I'd assume the Chopper was a few years ahead (or behind) the Hatchet. Since the Chopper looks like a simplified Hatchet, I'd guess the Chopper is a few years behind the Hatchet (in terms of publication date).

Yeah, I wasn't sure about the wing+stab areas. Might be entertaining to knock a few bays off either the wing or the tail (or maybe both).

You promise to admire it ... haha! I appreciate your intentions. lol.

-Dave
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USch
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« Reply #53 on: January 08, 2021, 03:06:13 PM »

Eureka,
I finally found the original drawing of the CORNET A1. The first A1 I've build in about 1958. Actually lincoln published already a 3-view from the Aeromodeller Yearbook in reply 37.

But having the original drawing in my hands is a different story! I remember I did the wing in white modelspan, no colours available, and a painted, black fuselage. In my memory it was black and shiny as a Steinway piano. I don't remember if it was ever flown.

3 pictures hastily taken. If anyone is interested I will try to have it scanned, just ask !!!

Urs
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lincoln
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« Reply #54 on: January 08, 2021, 07:23:54 PM »

The three view and the actual plan don't agree very well. Especially when it comes to the root airfoil.
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« Reply #55 on: January 09, 2021, 12:07:43 AM »

Lincoln, I was lurking this thread and noticed the discussion about the A 1 Siesta's  tail boom being made of spruce. And Thinking it was too heavy to balance. You should consider using Pampas grass stems for the tail boom if you're still thinking of the Siesta. It is one third the weight of the spruce. I know you would be surprised of how stiff Pampas grass is at this diameter.At about 5 g



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lincoln
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« Reply #56 on: January 16, 2021, 02:35:30 AM »

If I was going that way, I would use the local reeds that I probably mentioned. But I'd rather stay closer to the original design unless it was impossible to balance. I'm kind of waffling between the Siesta and the Jetstream, but a couple of other things come first, once I get my momentum back.
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stugliderguy
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« Reply #57 on: March 25, 2021, 12:12:47 PM »

IMPORTANT ANNOUNCEMENT!! Hi Everyone, Stuart Darmon here (A1 postal organiser). Because the public health restrictions in Europe are not easing as quickly as we hoped, and because of the flooding in New South Wales, we have decided to extend the time allowance for entries.The closing date of the contest is now 31st. December 2021, NOT 1st July as previously announced. All other rules remain unchanged. Any enquiries to [email protected], entries to [email protected]
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« Reply #58 on: March 25, 2021, 02:34:19 PM »

Just for info, one can download the Örnungen plan as a pdf in A4 (letter) size.  That pdf marking next to the photo is the download link.  It shouldn't be to difficult to enlarge it.  The S-1 classification was the Euro forerunner of the A-1 class.

I witnessed a few flights of this model years ago and was quite impressed and it is well represented in the Oldtimer/Classic events.

As I've been rather "occupied" for the past year, the extension of this postal is welcome - even tho the grounds are not.  It will give me time to finish my JETSTREAM and allow me to get my legs working again, so count me in.
« Last Edit: March 25, 2021, 03:04:41 PM by Pit » Logged

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dosco
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« Reply #59 on: March 25, 2021, 03:56:36 PM »

Just for info, one can download the Örnungen plan as a pdf in A4 (letter) size.

Pit:
For the ignorant (such as myself), where would I download this file?

Best-
Dave

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« Reply #60 on: March 25, 2021, 04:38:31 PM »

Just for info, one can download the Örnungen plan as a pdf in A4 (letter) size.

Pit:
For the ignorant (such as myself), where would I download this file?

Best-
Dave


Wink http://byggmo.se/ornungen_eng.html

I sent Lars an inquiry about an hour ago about when/if the kit itself will again available.  Probably a no-go to the States given the exorbitant shipping costs these days Undecided.
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« Reply #61 on: March 26, 2021, 06:16:51 AM »

I just received an answer from Lars.  Plans for the Örnungen are available and a kit or short kit can be made up to order.  Price is very reasonable.  I have placed an order for the full kit.

Here is the link to the main models site.  Under the "Produktlista" link are all that they offered and there is a big list of plans with a number of models that fit into the specs for this postal.

http://byggmo.se/modell_index.html
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« Reply #62 on: March 26, 2021, 10:13:38 AM »

Count me in.  I have a BMJR Jetstream kit.  Will formally enter when wood hits the workbench.  Soon, I hope.
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« Reply #63 on: March 26, 2021, 05:42:25 PM »

I read that the A1 postal is to be extended until December 2021.
Now you can build and fly two if you wish.
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