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Author Topic: What Did You Do Airplane Wise Today?  (Read 97534 times)
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MKelly
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« Reply #1850 on: October 07, 2019, 10:41:56 AM »

Dare I say that it might be little over propped?

Thanks all!  I'd say it's over-powered more than over-propped as flown with the 10.5" loops of 3/32" rubber.  Wing loading as flown was about .6g/sq in (30.5 sq in, ~18g flying weight).  Next time out I'll try 1/16" loops rather than 3/32", which will require re-balancing and the removal of a bit of tail weight for a slightly lighter overall flying weight.  I tried 1/16" loops when flying with the 3-bladed props and found them a bit anemic, but those props broke so often I never really got a chance to trim out the model.

I'm not sure why it drops the nose so dramatically at the end of the power run.  Hand glides looked quite nice and well-behaved.  My guess is that the model is a bit nose-heavy and is lacking a bit of downthrust, so when power comes off the nose drops right away, but I have limited experience with twins so this is strictly a guess.  Would love to hear thoughts and suggestions on this...

Regardless, it's a hoot to fly.

Cheers,

Mike
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TheLurker
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« Reply #1851 on: October 07, 2019, 04:02:55 PM »

Certainly lives up to its name.  Looks lovely too..

Lurk.

I regard multi-engined rubber power models as the darkest of dark magic.  Anyone who get one to fly is .... well.  Smiley
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DHnut
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« Reply #1852 on: October 08, 2019, 06:16:20 PM »

The photos from our Morrinsville meeting. These are all kit scale entries. The site is two basketball court size with a 10 m roof free of obstructions. 
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MKelly
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« Reply #1853 on: October 10, 2019, 11:00:09 PM »

More WestFAC prep - carved a set of counter-rotating props for the Diels Tigercat.  Hope to make a better showing with it this year.

Mike
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C VEICH
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« Reply #1854 on: October 11, 2019, 12:36:09 AM »

WestFAC prep here today as well.  Spent most of the day covering a PT Aviation Trojan as well as printing some tissue for a Herr J-3 Cub.  See you guys at the alfalfa patch!
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FLYACE1946
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« Reply #1855 on: October 11, 2019, 12:43:07 PM »

Getting planes and support equipment ready for the upcoming WESTFAC contest next week. Looking forward as always. Especially the long chases for that F7F in the Double Trouble event. Go Get um Mike
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MKelly
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« Reply #1856 on: October 11, 2019, 12:48:53 PM »

Spent most of the day covering a PT Aviation Trojan

What scheme are you going with Chad?  Looking forward to seeing folks and flying next week!

Mike
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Graham Banham
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« Reply #1857 on: October 19, 2019, 07:27:26 AM »

Quicky for Open Rubber at Nijmegen

Scibor-Rylski RS-III.  Depending on what you read apparently the last aircraft to fly in Poland prior to the German arrival.

1/20 scale: only 15" span but only 15g including prop but no rubber. Balances mid way between the spar and LE with no ballast and with a forward peg the rubber won't move the CG back much.

First try for Vallejo Air pre-mixed airbrush acrylic (in this case 'aged white'): they work well, have virtually no odour and unlike Tamiya acrylic they brush without dragging.

The control surface shading is 6B pencil and Frogtape masks: it's more subtle then it appears in the photos.

Pic of full size included to prove it isn't a Bostonian!  The apparent stripe on the fin is a low sun angle shadow of the wing: took me a while to suss that.... Wink
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danmellor
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« Reply #1858 on: October 19, 2019, 08:33:31 AM »

Obscure but lovely!

Nice one Graham.

Dan.
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Squirrelnet
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« Reply #1859 on: October 19, 2019, 08:57:49 AM »

Certainly obscure.. I googled the aircraft and all I got was a distinguished Polish general. Very nice model Graham
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FreeFlightModeller
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« Reply #1860 on: October 19, 2019, 09:19:21 AM »

At first glance I thought it had to be a Bostonian ... that last photo could still be "fake news"!  Wink
I have liked using AV acrylics in the past, but mine are getting a bit aged now. I'm sure you know, but wiping the nozzle after every use helps avoid getting dry bits in the mix ... but I'm getting dry bits in the bottle now.

Nice model, Graham  Smiley
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flydean1
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« Reply #1861 on: October 19, 2019, 10:59:26 AM »

No sign of a door.  How did they get in and out?  Smiley

Fine guaranteed-to-fly model.  Good for a beginner's first scale model.
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Pete Fardell
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« Reply #1862 on: October 19, 2019, 12:51:39 PM »

Oh not another Scibor-Rylski RS-III. Surely we've had enough of these by now...

Erm... ok, never heard of it. But I really like it! Quirky enough to be interesting but still looks like a surefire flyer.
(Might not actually be a Bostonian, but I bet it will be soon!)
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Graham Banham
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« Reply #1863 on: October 19, 2019, 01:03:11 PM »

Thanks chaps!

Russ, if the photo is fake news so are the other two i have. Mind you, they all appear to have been fa.....taken at the same time Smiley

Fly: apparently the side glazing was hinged at the top and it flipped up so the pilot could trip over the cockpit sill twice on the way in and out  Grin

Photos are 90 degrees out on my ipad but ok on my laptop Angry
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Russ Lister
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« Reply #1864 on: October 19, 2019, 01:33:45 PM »

Quote
Might not actually be a Bostonian, but I bet it will be soon!)

I'll race yer! ..... ok, you win.
Actually, Graham's might well qualify as is?
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Graham Banham
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« Reply #1865 on: October 19, 2019, 01:42:58 PM »

Actually, it might.... Grin
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Beazld
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« Reply #1866 on: October 20, 2019, 10:26:01 PM »

No pics but here’s a Wiki link
https://en.wikipedia.org/wiki/Ścibor-Rylski_ŚR-3
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PB_guy
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« Reply #1867 on: October 21, 2019, 12:40:56 AM »

Link should be: https://en.wikipedia.org/wiki/%C5%9Acibor-Rylski_%C5%9AR-3
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DavidJP
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« Reply #1868 on: October 21, 2019, 08:18:27 AM »

That is decidedly pretty and looking at the “original” I wonder if your model is not far off quarter scale?  The model seems far more neatly built but no surprises there of course.  I do hope it flys well, it has the look.

A very good choice and a pretty fine model as always.
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MKelly
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« Reply #1869 on: October 24, 2019, 10:11:56 PM »

Had a great time at WestFAC VII last weekend, got around to reviewing some of the video this morning.  The new props for the Tigercat work well!

https://www.youtube.com/watch?v=LM04Hau-U6c

Mike
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billdennis747
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« Reply #1870 on: October 25, 2019, 03:53:45 AM »

Had a great time at WestFAC VII last weekend, got around to reviewing some of the video this morning.  The new props for the Tigercat work well!

https://www.youtube.com/watch?v=LM04Hau-U6c
That's what the UK needs - alfalfa.
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DavidJP
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« Reply #1871 on: October 25, 2019, 03:58:09 AM »

See, I told you........ you youngsters just don’t listen! Wink Roll Eyes

PS What is AlfAlfa please?
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atesus
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« Reply #1872 on: October 25, 2019, 04:07:20 AM »

Alfalfa apparently is "lucerne" in British English Smiley
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DavidJP
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« Reply #1873 on: October 27, 2019, 05:48:44 AM »

Thank you.  I had appreciated that but somehow had assumed it was in that context something else.  However I now understand.  Come to think of it we do not have anything quite like it here in the UK. 
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DHnut
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« Reply #1874 on: October 27, 2019, 06:18:21 AM »

3 Hangar Rats have been finished, all under the 6 grm minimum weight we fly to so ballast will have to be added. Also the VMC Bird Dog has been finished with a weight of 17.5 gm and test glides in the bedroom indicating no nose weight needed. It was a great build and has been built to plan with the tissue being sprayed with diluted ink before a coat of nitrate dope and then a coat of non shrink dope to finish. Markings are photocopy paper printed on a laser and sanded on the back prior to attaching with thinned canopy glue. All I need now is a calm morning to trim the model.
Ricky
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