SFS 31 Milan

Fans and Thermals.
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Peter Balcombe
Posts: 873
Joined: 18 Mar 2015, 10:13
Location: Clevedon, North Somerset, U.K.

Re: SFS 31 Milan

Post by Peter Balcombe » 16 Oct 2015, 19:09

Dave,
Do you know what scale/weight of model & what the power train components are?
I will be building a 1/4 scale Milan very soon, so would be interested in the setup used.
Peter

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Dave Smith
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Joined: 18 Mar 2015, 00:44
Location: Bowen Island, BC, Canada

Re: SFS 31 Milan

Post by Dave Smith » 16 Oct 2015, 22:14

Peter, it's 1/4 scale, but I'll have to ask the builder what he's got in it and the weight.

DS

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Noël Rumers
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Location: Hoboken Antwerp

Re: SFS 31 Milan

Post by Noël Rumers » 16 Oct 2015, 23:12

Hi Dave,
Very nice model indeed!!!

More work was done to the exhaust and it is ready to go now. Took me a while, to go piece by piece, to work on the top exhaust pipes and get those fixed with the engine bottom screws.
I used two wedges to hold the 4 small pipes in place to being able to braze them to the flat tube. Secured this way I was able to work my way bottom up. The second exhaust pot at the bottom was fitted with a tube, elbow and more to end up to the top exhaust pipe.
Worked fine and lucky me, made no mistakes, all fitted perfectly the first time.
The cleaning was in the end the hard bit ;)
Now the carburetor controls will be installed, saying the servos to control the choke and starter.
With that done the gear retract has to be installed next.
From there on the fuselage building can be taken on to the finish.
Noël

BTW I misted the fly-by of the Vulcan last weekend, but who was at the controls you think...
High ladder to get at the controls 8-)
Or was it a dream...however...
Attachments
2013 Sept 16 UK0043.JPG
2013 Sept 16 UK0044.JPG
2013 Sept 16 UK0050.JPG
2013 Sept 16 UK0058.JPG
2015 10 160004Milan scaled exhaust.JPG
2015 10 160005Milan scaled exhaust.JPG
2015 10 160006Milan scaled exhaust.JPG
2015 10 160007Milan scaled exhaust.JPG
2015 10 160009Milan scaled exhaust.JPG
2015 10 160010Milan scaled exhaust.JPG

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Noël Rumers
Posts: 261
Joined: 20 Mar 2015, 10:29
Location: Hoboken Antwerp

Re: SFS 31 Milan

Post by Noël Rumers » 16 Oct 2015, 23:14

...more exhaust steps...
Attachments
2015 10 160011Milan scaled exhaust.JPG
2015 10 160014Milan scaled exhaust.JPG
2015 10 160015Milan scaled exhaust.JPG
2015 10 160016Milan scaled exhaust.JPG
2015 10 160017Milan scaled exhaust.JPG
2015 10 160018Milan scaled exhaust.JPG
2015 10 160019Milan scaled exhaust.JPG
2015 10 160020Milan scaled exhaust.JPG
2015 10 160022Milan scaled exhaust.JPG
2015 10 160023Milan scaled exhaust.JPG

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Noël Rumers
Posts: 261
Joined: 20 Mar 2015, 10:29
Location: Hoboken Antwerp

Re: SFS 31 Milan

Post by Noël Rumers » 16 Oct 2015, 23:17

...more fitting...
Note that I did close the flat tube only than when all drilling and cutting was done.
Noël
Attachments
2015 10 160024Milan scaled exhaust.JPG
2015 10 160025Milan scaled exhaust.JPG
2015 10 160027Milan scaled exhaust.JPG
2015 10 160028Milan scaled exhaust.JPG
2015 10 160029Milan scaled exhaust.JPG
2015 10 160030Milan scaled exhaust.JPG
2015 10 160031Milan scaled exhaust.JPG
2015 10 160033Milan scaled exhaust.JPG
2015 10 160035Milan scaled exhaust.JPG
2015 10 160037Milan scaled exhaust.JPG
Last edited by Noël Rumers on 16 Oct 2015, 23:22, edited 1 time in total.

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Noël Rumers
Posts: 261
Joined: 20 Mar 2015, 10:29
Location: Hoboken Antwerp

Re: SFS 31 Milan

Post by Noël Rumers » 16 Oct 2015, 23:19

And the finish!!!
looks nice, hope the sound will be as good as it looks!

Noël
Attachments
2015 10 160038Milan scaled exhaust.JPG
2015 10 160041Milan scaled exhaust.JPG
2015 10 160042Milan scaled exhaust.JPG
2015 10 160043Milan scaled exhaust.JPG
2015 10 160044Milan scaled exhaust.JPG
2015 10 160045Milan scaled exhaust.JPG

Dion Dunn
Posts: 54
Joined: 14 Jul 2015, 02:08

Re: SFS 31 Milan

Post by Dion Dunn » 17 Oct 2015, 00:42

Very nice craftsmanship Sir! It's almost ashame to cover any of it up.
Dion

Hobby Jackson

Re: SFS 31 Milan

Post by Hobby Jackson » 17 Oct 2015, 03:28

Very cool, this is an airplane I would build! Where would I find a kit for this or did you make everything your self?
Thanks,
Hobby

RPoole
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Joined: 17 Oct 2015, 03:18

Re: SFS 31 Milan

Post by RPoole » 17 Oct 2015, 03:59

Peter, builder of the 1/4 Milan, Bob, answering your questions.

In the picture, the plane weighed approx. 12 lbs. It was powered by an AXI 4120 14 turn 5s with 14X10 prop. With the new full feathering hub, it weighs approx. 13 lbs. and has a Chinese 400 KV running at 1400 watts with a 15X12 prop. It has steerable tail wheel as well as scale main retract. Dave chose the airfoils and it has Quabeck 3.5% camber with 14% thickness on the inboard section and the outboard tapers to 10% with 1 deg. WO. Sink rate is good but flys fairly fast which isn't a problem if one needs to move 1/4 mile to a new thermal. Has a long roll out. The wing is 1/16" balsa over a spared foam core. Hope this is helpful. Bob

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Peter Balcombe
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Location: Clevedon, North Somerset, U.K.

Re: SFS 31 Milan

Post by Peter Balcombe » 17 Oct 2015, 08:24

Many thanks for that information Bob.
Noel is in the final stages of checking out a new design for a 1/3 scale Milan (IC powered) and I will be making a 1/4 scale electric powered model from the same design (rescaled) so wondered what a suitable electric setup would be.
The similar, but shorter wingspan RF4, from the Mick Reeves stable has a recommended electric setup of a 3548 900kv motor on 4S I think which appeared a little underpowered I thought - intended for a 40-60 IC engine.
Peter

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