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RCM&E May 2019 issue chat

Tim Hooper - Skystreak 26

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Braddock, VC10/04/2019 00:01:16
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There's an article by tim hooper re the skystreak 26, he can't attribute the design. perhaps the attached photo will help.

My plan was obtained from www.model-plans.co.uk, sized up so so it's now a skystreak 48 powered by an OS 40 Surpass and with a pair of electric retracts installed in the wing. A second wing is to be made incorporating air brakes as per chris foss's wot4 as it's hard to slow the plane down. I used the flat top of the wing as per the article but in honesty it needs just a smidgen more. Also an extra bay at the aft end of the fuselage is a good idea, to extend the moment arm as otherwise it'll get twitchy, it's probably why the original c of g is where it's at, to stabilise it a bit.

It's also probably why mine has been rekitted.

BTW model-plans.co.uk is the baby of Derick Scott Plans Service and mine, including blowing up to 1.2X was £12. It's advertised in SAM35 Speaks.

img_0119 (1).jpg

Dwain Dibley.10/04/2019 00:04:04
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That's the Australian version...cheekylaugh

D.d.

Braddock, VC10/04/2019 10:19:51
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Posted by Dwain Dibley. on 10/04/2019 00:04:04:

That's the Australian version...cheekylaugh

D.d.

Dwain, in some offices it's a prerequisite to be able to read upside-down.....wink

kc10/04/2019 12:29:10
6707 forum posts
173 photos

It's by Bill Dean as you can see on the bit you show upside down. Actually the Skystreak 40  was an old Keil Kraft control line design that was changed to 32 inch span as a pull out plan in Radio Modeller August 1986 ( on the front cover ) by Graham Winch.

Edited By kc on 10/04/2019 12:31:55

Edited By kc on 10/04/2019 12:34:12

Edited By kc on 10/04/2019 12:37:35

Jim Carss11/04/2019 09:47:44
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2126 forum posts
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My two from 9yrs. ago,great fliers but sadly no longer with us. crook

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Braddock, VC11/04/2019 10:57:03
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Lovely!

With my scythe and black cloak, what caused their passing?

Edited By Braddock, VC on 11/04/2019 10:57:27

Don Fry11/04/2019 11:00:38
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4557 forum posts
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Usually the ground

Jim Carss11/04/2019 12:27:08
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The ground did the blue one but the red one just gave up with old age,ended up in a skip at the local recycling plant,gave it a lob and it did a nice stable glide to the rear of the skip.

Braddock, VC11/04/2019 12:35:48
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My planes generally don't get that old embarrassedcrying 2

Edited By Braddock, VC on 11/04/2019 12:36:03

Tim Hooper12/04/2019 19:28:33
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Thanks Gents!

Brad, my Outerzone-sourced plan makes no mention Bill Dean - I wonder why his name has been removed?

Jim, it was your photos that I found, that encouraged me to pursue the build.

FWIW, I did increase the tail moment, as well as reducing the size of the elevator.

Perhaps I shouldn't mention this, but the model had its maiden flight quite recently. It's quick!

Tim

2018-08-03 18.36.58.jpg

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Jim Carss12/04/2019 19:45:41
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2126 forum posts
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Looks good Tim and as you say PDQ,mine were bog standard from a free pull out plans in one of the mags and I had quite a job to get the gear in the red one as you can see.

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Malcolm Fisher12/04/2019 20:02:31
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652 forum posts
7 photos

I like your version Tim, but I beat you to it by a decade or two. My second ever control liner was a Skystreak 26 built circa 1955 and there was a 40 version for 2.5 cc motors. I built several 26s and still have one which is flyable. In the late 1980s or early 1990s there was a free plan in, I think, Radio Modeller for a 32" span version for R/C. I felt this would be better at the larger 40" so scaled up the plan from my 26 to that size, fitted four channel radio and an OS 10. I left the tail and moment arms as per the original and it flew well. Another C/L model I converted to R/C was a Mercury Crusader. This had an asymmetric wing as did many other stunt models so I removed part of the inboard wing to balance them up, changed the coupled flaps into ailerons and added a rudder. Power for this was an OS 40. The flaps didn't make good ailerons as they were rather narrow at the tips so I added extra balsa making them more or less parallel along their length and this improved things considerably.

Malcolm

Tim Hooper12/04/2019 20:31:13
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2914 forum posts
2412 photos

This thread could run, couldn't it?

I must confess that I'd never really considered the older generation of CL classics as suitable material for new RC technology before, so you guys have beat me to it!

I'm enjoying the ride.

Tim

Stuart Quinn-Harvie 113/04/2019 05:31:25
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117 forum posts
88 photos

Oh that's lovely Tim! You have an excellent eye for good and tasteful colour schemes. By how much did you extend the moment?

And I am eyeing up the plan for the Civillian Coupe...it's getting nearer to the top of the build pile...

Peter Miller13/04/2019 08:42:06
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11473 forum posts
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10 articles

I just refreshed my memory. The Skystreaks had their wings held on with elastic bands.. I could never see the point for the 26. But then we used to cycle miles with a stunter across the handle bars of our bikes.

Piers Bowlan13/04/2019 08:54:51
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2172 forum posts
53 photos

What size did you scale it up to Tim? A future RCM&E plan including your own modifications?

Can't wait!

Derek Stevenson13/04/2019 10:30:10
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288 forum posts
8 photos

Feel left out my magazine hasn't arrived in post yet crying

Tim Hooper13/04/2019 10:42:07
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2914 forum posts
2412 photos
Posted by Piers Bowlan on 13/04/2019 08:54:51:

What size did you scale it up to Tim? A future RCM&E plan including your own modifications?

Can't wait!

Piers,

I've had it printed out to yield a span of 39" - so a 50% enlargement.

Outerzone plan

There's no real call for a new plan. Other than fitting an outrunner up front, the only real mods I made were the undercarriage and a 50mm extention to the rear fuselage. Oh, and the fin's a bit bigger too!

Tim

Jim Carss14/04/2019 18:12:03
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2126 forum posts
81 photos

On the theme of control line classics,this one always caught my eye,lovely looking model.

Crescendo by Claus Maikis.

Plan on Outerzone

crescendo.jpg

Peter Miller14/04/2019 18:17:21
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11473 forum posts
1365 photos
10 articles

Ahj! Claus Maikis. A great desinger of C/L stunters.

I still remember and apply one of the things he said about finishing a model.

Claus said that everyone looks at the nose and cockpit areas of a model, they never really look at the rest so if you concentrate on that area they will always think that your models are perfect.

Think about it, those are the areas we all look at.

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