Fauvel AV48

Let us all watch your new project progress.
Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 26 Apr 2019, 19:30

Hi Robbie,
I agree with you completely regarding the issues of alignment of the ribs! I had in fact been in the process of adjusting individual ribs at the spar joint positions, just felt wrong sanding laser cut edges. Also, because ailerons make up a large percentage of panel, there isn't a lot of trailing edge to sight along. I can't help but think that leaving the ribs whole and perhaps incorporating jigging tabs would have been more accurate.
We have two nights a week in our clubroom until we start evening club flying sessions in a week or two, so I'll soon know how straight it is!
At our last session I even pointed out to Frank Skilbeck and Roger Spragg your build thread because it showed that it can be done that way.

Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 07 May 2019, 20:11

So, after mulling over the rib alignment, I decided to use a combination of methods.
Firstly, the inboard whole ribs were glued to the main spar after their mating faces were adjusted to allow their trailing edges to line up correctly.
Next, the tip rib was glued into position, lined up by sighting a straight edge down the trailing edge.
The tapered aileron sub spar was then cut and the inboard end relieved top and bottom to allow the formed end to fit between the inboard spruce sub spars.
A few intermediate ribs then had their front edges gently sanded to allow their trailing edges to meet the aileron spar.
This has been left to dry until our next club building session, at which time I'll add the last ribs and cut out the aileron parts.
Thanks again to Robbie and Doug who have been great at chipping in with advice, and to my clubmates, who have talked me down off the ledge when frustration was at its peak!!
Attachments
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Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 15 Jun 2019, 15:05

Managed to move things on a bit with the wing construction, port side framework for the inner and outer panels progressing quite well.
Going to build the elevator and aileron next then put all of these part completed sub assemblies to one side to build the starboard mirror image.
I want to have all of the main parts in hand to sort out alignment and attachment issues before I finish the sheeting.
Attachments
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steveshep
Posts: 1
Joined: 31 Jan 2019, 14:54
Location: Torbay

Re: Fauvel AV48

Post by steveshep » 15 Aug 2019, 09:57

I have been building the AV48 on and over over a few years. I had similar issues with the wing. I used centre lines on the ribs where they meet the spar ,on the spar and TE to get them straight . It took a while but looks ok . I have yet to attempt to build the ailerons as they will be difficult to keep straight.
I have all the wing panels ready for sheeting .
I cheated a bit on the fuselage and planked the whole thing with 3/32 balsa which was sanded and filled then covered in glass cloth and epoxy.
I still need to work out how the panels and fins fit together neatly!
I will take some photos and post them when I get chance
I plan to carry on the build this winter as I have now completed other projects

Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 16 Aug 2019, 07:49

Hi Steve, nice to hear from another Fauvel builder,. I have to say, your method of sheeting the fuselage is something that was discussed in our clubroom when I began my build! It would definitely be easier and quicker to do than the infill process that Vic designed, but I have to say it works fine.
I haven't achieved much on the build lately, we only have one two hour session a week through the summer. The port side panels are pretty much ready to sheet, but I'll figure out attachment methods first. The aileron was very flexible and not too straight initially, so I added diagonal bracing and cap strips while clamping the trailing edge to a metal rule.
If I was starting this model from scratch now, I'd be tempted to build the outer panels in foam, complete with the ailerons, then cut them free after skinning. Look forward to hearing how you get on!
Sean.

Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 26 Aug 2019, 21:50

So just had a fairly productive session in the clubroom, oiled the plan to reveal the reverse wing panel and marked off the rib positions. Attached the first few, checking for trailing edge alignment and adjusting as necessary.

Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 24 Oct 2019, 22:43

Finally nearing the point of sheeting the wings. Alignment and retention needs sorting first, but close to a trial fit of the assorted sub assemblies.
Attachments
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Sean Fitzgibbon
Posts: 76
Joined: 11 Oct 2017, 18:53
Location: Mitcheldean

Re: Fauvel AV48

Post by Sean Fitzgibbon » 31 Oct 2019, 22:45

Starting to trial fit the fins, incidence pins and MPX style wing locks will be next, then servos and wiring loom.
Attachments
IMG_20191031_200423313-2016x1512.jpg
IMG_20191031_200410436-1512x2016.jpg

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