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Mustang p51d

Super flying Models

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Happyface 83816/04/2018 16:46:47
16 forum posts
6 photos

A day Nd a half into the build and the fuselage is getting there, I have trouble putting ( fun) stuff down once started (wife would like that to apply to boring stuff too).

I have modded the underside to blank off the cooling holes and added a scale (ish) radiator outlet (interesting on the full size, read about the Meredith effect). I am considering moving the tailwheel to a more scale location too (although it won't retract).

So photos......

Happyface 83817/04/2018 09:10:18
16 forum posts
6 photos

img_20180416_164742.jpg

Happyface 83817/04/2018 09:10:40
16 forum posts
6 photos

img_20180416_164817.jpg

Martian17/04/2018 12:51:38
1836 forum posts
860 photos

Very nice happyface i like what you have to the outlet

Happyface 83806/06/2018 22:10:45
16 forum posts
6 photos

I just can't help myself! Wings almost complete now, but I had to deviate from the plans lol.

The standard u/c position was a little wide for my liking, so I've relocated them inboard into the next 'bay' and manufactured some hard mounting points for the oleos. They now occupy a more scale position and I'm contemplating having a go at some mechanical inboard gear doors too that are opened/ closed by the cycling wheels.

I've decided to up the game in the powerset stakes too and will be going 6s 2650mah, 80a ESC, driving the 12.8 inch Hamilton standard 4 blade prop. Pitch will be set on a watt meter, but expected to be around 8 inch.

I've managed to use the standard spinner and machined the other 2 blade exits and it looks really good.

Can I justify £30 on a robart retractable tail wheel?

Trying to find a different colour scheme and so far the one for 'Lou IV' is looking favourite. Just hope that the paint will adhere to the filmmive got for covering.

Percy Verance07/06/2018 05:44:57
avatar
6622 forum posts
111 photos

Looking good so far yes I'd have reservations regarding a 4 bladed prop though, as 4 bladers are not as efficient as 2 bladed props. In flight you simply won't be able to tell how many prop blades there are.

Ooooh, you're braver than me Happyface. Those taiplane and fin frameworks might have been better left pinned to the building board until the spacers were all glued in. They'll be prone to warping in their current state. Been there, got the warps.........

Save your £30. You won't notice the tail wheel in flight.......

Percy Verance07/06/2018 05:45:00
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6622 forum posts
111 photos

Looking good so far yes I'd have reservations regarding a 4 bladed prop though, as 4 bladers are not as efficient as 2 bladed props. In flight you simply won't be able to tell how many prop blades there are.

Ooooh, you're braver than me Happyface. Those taiplane and fin frameworks might have been better left pinned to the building board until the spacers were all glued in. They'll be prone to warping in their current state. Been there, got the warps.........

Save your £30. You won't notice the tail wheel in flight.......

Happyface 83807/06/2018 13:02:44
16 forum posts
6 photos

Thanks for the comments Percy, the tail feathers aren't fixed yet, I was just checking alignment (and taking advantage of seeing it looking like an aeroplane).

The 4 blade prop is a bit of an experiment, using a varioprop as I'm intrigued with it, I suppose I could have used a 2 blade hub, but my heart won that battle. I know that it is far from scale, as there is an awful lot of built up structure, but I do like to fiddle 😋.

I hear you ref the tailwheel, although even if fixed, I'd like to move it to a more scale location, we'll see.

Happyface 83808/06/2018 05:10:27
16 forum posts
6 photos

img_20180608_045136.jpg

Happyface 83808/06/2018 05:11:22
16 forum posts
6 photos

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Happyface 83808/06/2018 05:11:56
16 forum posts
6 photos

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Happyface 83808/06/2018 05:12:19
16 forum posts
6 photos

img_20180608_045704.jpg

Percy Verance08/06/2018 06:33:53
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6622 forum posts
111 photos

With respect Happyface, you seem to be overthinking things a bit. Anyone who happens to notice the tail wheel isn't in a scale position clearly has his head too close to the ground.

And fiddling's fine as long as it's kept in context. It's when the fiddling overtakes the flying it becomes questionable......

Just looking at the wing, I'm not sure I'd move the retracts. The position you have marked out - which is presumeably the scale position? - doesn't look as if it would have the strength or rigidity to take the stresses. Good look if you do move them though.........

Edited By Percy Verance on 08/06/2018 06:41:31

Percy Verance08/06/2018 06:45:17
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6622 forum posts
111 photos

Ignore my comment re: the undercarriage! I re-read the posts, and I see you have moved it inboard..........

I misunderstood. I thought you were going the other way..... blush

Martian08/06/2018 11:19:35
1836 forum posts
860 photos

Your doing a nice job happy face ,as far as mine was concerned there were to many details off scale to try to correct it I understand it's a good flyer that looks good in the air i did consider the tailwheel position but as Percy says or infers its not worth it , keep going happy face it's whatever makes you happy ☺

Happyface 83808/06/2018 22:08:27
16 forum posts
6 photos

Thanks for all of your comments, I've been thinking about the servo wiring and what a pain it would be when the wings are joined and covered. Did you use extensions and y lead or seperate channels for the ailerons, or maybe hard wired extensions to limit the number of connections?

Martian09/06/2018 10:58:49
1836 forum posts
860 photos

I always hard wire extensions then connect to a y lead from rx but having said that I may have used a y lead on the wing for uc and ae on the Mustang

Happyface 83809/06/2018 18:53:33
16 forum posts
6 photos

Thanks Martian, I was thinking the same for gear, flaps and ailerons, don't like the idea of connections where i can't get to them.

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