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Piper Twin Apache PA23 -150 74"

Probably a very slow thread.........

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Danny Fenton06/07/2020 12:44:54
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9651 forum posts
4460 photos

Thanks Eric, there is a Mustang loitering here that I started in 2007 Just needs wings. 50 percent finished only 95% to do.....

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some G10 has finished the opening. That will do til after glassing. I now have a pattern for the other nacelle.

Gone from bipe with too many wings to a twin with too many engines crook

Cheers

Danny

Eric Robson06/07/2020 15:13:08
291 forum posts
52 photos

Hi Danny, I've started on one of Richard Wills semi scale Spitfires it will take about 2 weeks if the weather stays as it is. After that the next build will have two wings or two engines or both as I have to many single engine planes. A Saro London would be a good subject.

Cheers Eric

Martian06/07/2020 20:27:38
2542 forum posts
1169 photos

Well hello Apache good to see you again

Danny Fenton06/07/2020 23:08:33
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9651 forum posts
4460 photos

It has only been ten years since I started this project, good things come to those that wait......

Danny Fenton06/07/2020 23:12:39
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9651 forum posts
4460 photos

Oh may as well show you I made a lip for the end of the exhaust, just to see if I could...

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Fun but not really needed at this point of the build embarrassed

Cheers

Danny

John Bisset07/07/2020 11:15:39
226 forum posts
5 photos

This is fascinating stuff Danny, terrific. (I have only just found this thread, so am looking back through some intriguing pieces of work and interesting techniques. Wow!

The aircraft pictured as your header on this topic belongs to a friend of mine and is based nearby, so if you plan to use that colour scheme let me know. Photos could be arranged. I see you got a good source of Apache photos a while back.

Danny Fenton07/07/2020 11:51:48
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9651 forum posts
4460 photos

Hi John, glad you are enjoying it so far. The intention was to model mine on Foxtrot Victor, and would love some pictures, I did scour the web for some and found a few, but more is always good.

As you say I have several pics of TF-JMH from a great photographer Graeme Molineux, which is a lovely scheme too.

Any idea of paint codes for Foxtrot Victor?

Cheers

Danny

John Bisset08/07/2020 15:28:26
226 forum posts
5 photos

I shall ask the owner this evening by email.

I suspect the paints may well be to the old Piper standard, it certainly looked like that to me - shades that look very similar to the scheme on the Super Cub I used to fly.

G-APFV was G-MOLY at one time. John, the current owner returned her to the 'FV marks I believe because his uncle had owned her under those marks.

Cheers,

John B.

Danny Fenton08/07/2020 15:36:37
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9651 forum posts
4460 photos

Thanks John, very interesting indeed. I know it flies into Breighton frequently. Where is it based these days?

Cheers

Danny

John Bisset08/07/2020 18:01:05
226 forum posts
5 photos

It is based at Insch now, previously at Longside.

John B

Danny Fenton08/07/2020 22:48:27
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9651 forum posts
4460 photos

Thanks John a bit far for me to go and see her. One day.

I have spent most of the last two days trying to get my head back into Jeti, not that my head really ever was into Jeti. The TX is the finest made, has wonderful features, an amazing dual path built in. But the programming I really struggle with. Having spent a fair bit of time lately setting up OpenTx on my Horus (Hawker Fury) my mind was struggling with the Jeti way. I watched lots of Harry Curzon's fabulous videos and got what I wanted done, but OpenTX is so much more intuitive.

In my perfect world I would love to see OpenTx Operating system on Jeti. maybe one day....

So I am gradually picking up where I left off. filled in the missing bits of foam blocks at the wing tips. Not really worthy of a picture, and I added the 1/64 ply trailing edges. I made a rebating sanding block to form the rebate, then the 5mm wide strips of ply were glued on with thin CA.

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I had forgotten how big the model is, 1/6th scale is 74" but it fills my workshop bench.

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Cheers

Danny

Danny Fenton08/07/2020 23:03:43
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9651 forum posts
4460 photos

John's friends Apache just after a respray, these are the colours I will match too, I like the cream and red, traditional Piper colours, although I am led to believe via John the red is from a Russian red star insignia as the guy had some paint from a previous job.

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The model wont be for serious competition, so I dont think the colours will be crucial, but I want them close. There is a local paint factors close to me that I have heard good reports from, I will give them a try for auto base-coat, then Klass Kote gloss clear over the top.

Cheers

Danny

Eric Robson09/07/2020 00:33:42
291 forum posts
52 photos

Hi Danny, that's a nice looking model and a nice size workshop. Had the Fury out again with the tags on the struts, threw it about the sky ( it knife edges great) and the struts stayed on.

Cheers Eric.

Martyn K09/07/2020 20:27:12
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5087 forum posts
3681 photos

Looks great Danny. A very pretty looking aeroplane and a sensible size as well

Martyn

Danny Fenton09/07/2020 22:35:09
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9651 forum posts
4460 photos

Great news on the Fury Eric, glad its sorted, however you will get frowns from the scale flyers doing a knife edge with a Fury wink 2

Hi Martyn, a Marmite plane I think. Love it or hate it. I love it. The later longer nose variant spoilt the lines.

Probably not much to see for a while, lots of sanding and glassing to do.........you have seen me do that dozens of times over the last ten years.

Cheers

Danny

chris larkins13/07/2020 20:54:47
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220 forum posts
154 photos

I'm really happy to see you back on the Apache, would love to build one of these.

I recently received a job lot of faux rotating beacons that I ordered on eBay (China), I'm more than happy to stick one in the post to you if you think that it would be of any use (it looks like the one on top of the fuselage).

They are fitted with a standard JR servo plug and run off receiver voltage and the speed / pattern is adjustable from the TX, the first speed is way too fast but the second speed looks pretty good.

LINK TO VIDEO OF BEACON

Danny Fenton14/07/2020 08:49:01
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9651 forum posts
4460 photos

Hi Chris, that is very kind of you, If you can spare one i will be happy to see if i can fit it. I have a beacon on top already part of a full led set, not doubt not as good as yours, the wiring in that area may be impossible to access, so I may not be able to replace it.

I had a quick conversation with Ton, my co-conspirator, and he has said we can make changes to the plan after its flown and proven incidences etc, we can then incorporate a removable wing centre section which will make this model so much easier to build and maintain.

Cheers

Danny

Danny Fenton14/07/2020 16:23:10
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9651 forum posts
4460 photos

A little bit more progress, loads of loose bits all glassed. Starting on the big piece, one wing stub, and nacelle glassed. Not using peel ply, so am accepting that I will have to do more sanding than if I had used peel ply.

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That piccy has highlighted some overly wet areas, I will mop them with kitchen towel wink 2

Cheers

Danny

Danny Fenton15/07/2020 14:26:57
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9651 forum posts
4460 photos

Chatting with a friend and being shown Gordon Whiteheads formula for calculating the C of G of a model, I thought I would calculate it while waiting for resin to dry....

The formula says C of G = mean chord (wing) / 7 + (3 x the tail area x the tail moment / 8 x wing area)

So some tapping on the calculator after working out the areas and moment from the Turbocad drawing gave me 3.9653 ins from the leading edge, or 100.7 mm. that's 34.7% I think I will double check the sums

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Cheers

Danny

Edited By Danny Fenton on 15/07/2020 14:36:08

Ton van Munsteren15/07/2020 19:05:02
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1292 forum posts
3303 photos

Hi Danny , It really is great to see you making such progress on the Apache.

And can wait to see the maiden of te model so I can get started on the redesign of the Apache hoping to see many more Apache's

Cheers, Ton

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