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Author Topic: Minimoa: Part 4.  (Read 5462 times)

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Offline selleri

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Re: Minimoa: Part 4.
« Reply #40 on: September 01, 2014, 11:51:44 AM »
Best not take any chances then!  ;D
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #41 on: August 21, 2018, 22:11:09 PM »
Hi folks. I have only just found you in the last few days and I have been enthralled by this thread. I have been into R/C gliding for the last 30 years with a 13 year break whilst living in France. Now back in England I am catching up again. The thread stopped suddenly and I would love to know if both of your models are still flying, as they should be? And what you think of them. Photos too please.

I have a 1/5th scale-ish Minimoa, rudder/elevator with spoilers that I built best part of 25 years back. Rebuilt from the wing root forward twice due to an unknown faulty new battery pack! They are so elegant and wonderful in the air.

The fuz is 1/8" planked balsa, which is why I was able to rebuild it, and now from the wing root forward is GRP re-enforced. The covering for the wings was scrounged from the repair guy at a local full sized glider club. It's the light weight heat shrink fabric they used when I built it all that while ago. The rudder is closed loop and the connections to the servo is via a couple of healthy coil springs, so that if there is any shocks on landing it will not strip servo gears. So far it has worked a treat. It also takes any slack out of the loop.

I am also building a 1/4 scale Habiche. I say building, it's been sat waiting since before I went to France??? Once we get settled back in Blighty I want to see it finished and where it should be, in the air.

A very brief history of me. I joined the SCSA, South Cotswold Soaring Association, In the late 80s and have flown off of all of the hills surrounding Stroud, Gloucestershire up until 2004 when we moved to France. Then I had 13 years living down in the South, about 10km N/E of Carcassonne. A lovely place to live but we were on a track between 2 places used by the French air force. the nearest site was over 50 km away, so flying was on the back boiler. We moved back to N/W Wilts and I have rejoined the SCSA and back on the slopes again and loving it. My favorite models have always been either old scale or older models like the Gentle Lady or Bird of Tyme or Aquila, etc. I have all 3 of those, plus???

I would go on to some of the models I have built/bought but I would hate to start on a new forum, to me, by hijacking this thread.
Never forget that you are unique. Just like everybody else..
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Offline SteveBB

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Re: Minimoa: Part 4.
« Reply #42 on: August 22, 2018, 15:53:16 PM »
Hi John (?)

I'm a little embarrassed to say my Moa is still in the stage of needing to be finished off. I moved to California in later 2016 and life has got in the way preventing me doing anything on it or any other modelling. And where I live is at least a two hour drive from any slope that can't be flown year round because of the extreme heat in summer. I don't know how Paul is doing with his, last I heard he was annoyed the wings had different angles at the crank but I don't know if he's sorted it out.
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Kryten: Sir, are you absolutely sure? It does mean changing the bulb.


Offline half throttle

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Re: Minimoa: Part 4.
« Reply #43 on: August 22, 2018, 15:55:54 PM »
Hi John (?)

I'm a little embarrassed to say my Moa is still in the stage of needing to be finished off. I moved to California in later 2016 and life has got in the way preventing me doing anything on it or any other modelling. And where I live is at least a two hour drive from any slope that can't be flown year round because of the extreme heat in summer. I don't know how Paul is doing with his, last I heard he was annoyed the wings had different angles at the crank but I don't know if he's sorted it out.

Heartbroken is the word.

I've built a load of small leccy types in the meantime. Maybe one day?
'Concerning myself with the reasoning processes of your cerebral cortex is notably absent from my tables of consideration at this juncture'

Offline SteveBB

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Re: Minimoa: Part 4.
« Reply #44 on: August 22, 2018, 17:25:03 PM »
Incidentally John. This is the start of the build, I don't know if you've seen it.

http://www.rcmf.co.uk/4um/slope-soaring/minimoa-build-log-14-scale/
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Offline SteveBB

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Re: Minimoa: Part 4.
« Reply #45 on: August 22, 2018, 17:25:36 PM »
Heartbroken is the word.

I've built a load of small leccy types in the meantime. Maybe one day?

What happened Paul?  $%&
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #46 on: August 22, 2018, 17:48:25 PM »
I hadn't seen it Steve, but I will have a gander, ta.

That is sad on both counts, but I can understand the 'life getting in the way' bit Steve. At the moment we are living in rented accommodation, but hopefully that will change in the next few weeks. Boxes everywhere and not really any room to move. So I have flown what I have ready and repaired what was needed, but no new builds. I can't even get near my wood turning lathe yet!

HT, "the wings have different angles at the crank"? What sort of 'different angle'? Wash in/out or the actual angle along the wing at the 'gull wing' join? If it is the latter then would it not be possible to 'break the join and re-do it?

Another slight problem of not doing anything for 13 years is the R/C kit has moved on with 2.4 gig coming in to fashion. I still had 27 and 35 meg kit and was flying on 27 grey/brown split crystals in my Mini Bird, the 1/2 size Bird of Tyme. One of our club members very kindly gave me his old Futaba tranny with a 2.4 gig module in the back along with a slack handful of FrSky receivers. So that saved me a fortune I didn't have! Just trying to catch up with the batteries now, especially the li-po jobs for the fan driven jobs.

What bit of France are you in HT?
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #47 on: August 24, 2018, 22:18:38 PM »
I am best way through reading the original Minimoa thread and as far as I can recall the planking was applied unbent? When I built mine I steam bent the planking. It was balsa but I have used the same method using ply on my Habiche. I just wet the cut and sized plank and I use my film iron to bend it and steam it to shape. the iron is set quite hot and it only takes a few seconds to do. It takes all the strain from the build I found.
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Offline SteveBB

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Re: Minimoa: Part 4.
« Reply #48 on: August 25, 2018, 01:58:16 AM »
Only the nose forward og F6 is planked ply (1/16th) If you read the thread I mentioned I'd bent (And some twisted) to conform with the compound curves. I also split some of the strips partway and cut the centre out to make narrower strips. All the fuselage behind F6 (Approximately LE of the wing root) was 1/32 ply sheet, and not planked. The only balsa on the fuz is the internal structure.
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Offline half throttle

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Re: Minimoa: Part 4.
« Reply #49 on: August 25, 2018, 12:50:05 PM »

HT, "the wings have different angles at the crank"? What sort of 'different angle'? Wash in/out or the actual angle along the wing at the 'gull wing' join? If it is the latter then would it not be possible to 'break the join and re-do it?

What bit of France are you in HT?

Thanks Johnzjob

Yes, I think I will have to.

Nouvelle Aquitaine (formally Haute Vienne) in the Limousin.

Paul
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #50 on: August 25, 2018, 16:44:25 PM »
OK. All read now Steve and I get the picture. The fuz is the same build method as my Habliche with the 1/16th ply strips and the 1/32nd sheeting behind. Quite an exciting way to spend yer time init  :'(

The trailing false edge is 1/64th" ply, as is the ailerons leading edge. It has Frize ailerons and the idea of them is that the up going aileron has its leading edge stick down in to the airflow and cause some drag. That counteracts any adverse yaw! And as the leading and trailing edges have a 1/4 circle cross section and are a yard long (! :o) it's quite an interesting job? I found that yards of non sticky tape and a broom stick to wrap the ply onto did the job.. So far I have done one aileron leading edge and both of the trailing jobbies. This explains it better than I did (if I am allowed to post urls yet?) 

http://heli-air.net/2016/02/25/frise-ailerons/

Edit  : - I forgot to say that the main spars are one bit from root to tip, spruce and bent  (very carefully  ??? )

The 1/5th scale Minimoa wing's in there too. Covered with the full size lightest weight covering I blagged from a repair shop at a local gliding airfield. I stuck it down with balsa lock and sealed it with a couple of coats of clear dope.
« Last Edit: August 25, 2018, 16:46:11 PM by Jonzjob »
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #51 on: August 25, 2018, 16:50:47 PM »
We visited up your way Paul. Orador sur Glan. What a place! The atmosphere is electric and I half expected to see a tram coming down the road.

Nice part of France up there though. We liked Carcassonne better though, more wine in the biggest vineyard in the World  :co ^-^ The porcelane isn't so good though.. :af
Never forget that you are unique. Just like everybody else..
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Re: Minimoa: Part 4.
« Reply #52 on: August 26, 2018, 10:47:42 AM »
We visited up your way Paul. Orador sur Glan. What a place! The atmosphere is electric and I half expected to see a tram coming down the road.

Nice part of France up there though. We liked Carcassonne better though, more wine in the biggest vineyard in the World  :co ^-^ The porcelane isn't so good though.. :af

We've been here 13 years now and still haven't brought ourselves to go round Oradour. It's unbelievable what cruelty man can do to man.
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Re: Minimoa: Part 4.
« Reply #53 on: August 26, 2018, 15:17:55 PM »
Some really nice building there Jon. How do you hinge the Frize aileron if the hinge point is on the bottom and further back than standard on the aileron? Especially with it being as long as it is.
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #54 on: August 26, 2018, 18:24:35 PM »
Oradour is worth a visit Paul. The atmosphere there is something else. For those who have not heard of the place just do a search on Oradour sur Glane.

Back on track. Ta Steve. I enjoy doing that sort of thing. I made some long hinges from aluminium as I couldn't find any anywhere. I just hope that they work or it's a rethink?

The first 2 show a hinge, followed by the wing and the length of the aileron. The yellow tubes are for the closed loop wires. I want to mount the servo near the wing root.

Then just how the 1/64 ply had to be formed! and lastly the curve of the main spars, top and bottom. The leading edge still has to be fitted and the 'D' box completed. Oh joy  ??? ???

That's all going to have to wait until our house move is over and done. I had to unwrap the wing from its cocoon of bubble wrap to take those photos just now  ^-^
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #55 on: August 27, 2018, 14:39:49 PM »
I finally made it today and got my Mnimoa into the air on selsey Common just outside Stroud, glos. It was well worth the wait even although it was slightly bumpy at times. The landings on there are very good with loads of flat space, as long as you avoid the public and their dogs, plus, the grass is about a foot deep so a nice soft quick stop, like in the 3rd, landing, photo. I thought that it was going to do a 'roller' and off again  ??? It was lovely to see it in the air again after a 13 year 'rest'.

The 4th is obviously a static and the other model in the shot is a Pixel, a French model with a difference (well, it is French.) The 'V' tail is fixed and the wings pivot to give it elevons, i.e. pitch and roll. And the rioll rate is QUICK!
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Re: Minimoa: Part 4.
« Reply #56 on: August 27, 2018, 15:46:11 PM »
Is that the aerial sticking out of the nose running down the fuselage?
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Offline Jonzjob

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Re: Minimoa: Part 4.
« Reply #57 on: August 27, 2018, 16:32:01 PM »
The aerial is sticking out and I couldn't be bothered to tuck it in, but you can't actually see it. What you can see is the edge of the canopy. It doesn't follow the proper edge and it shows like that due to the age of it and the need to 'tart' it up a bit  :embarassed: :embarassed:
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Re: Minimoa: Part 4.
« Reply #58 on: August 28, 2018, 14:28:02 PM »
I'm afraid that won't do. The RCMF scale police sub committee, (scale glider division) will be sending you a memo to remind you of your obligations to ensure all scale models are perfectly scale. It seems harsh I know, but it's how it is.  :study:
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Re: Minimoa: Part 4.
« Reply #59 on: August 28, 2018, 15:14:37 PM »
Well, if they are going to step it up to a red alert then it looks as if they are going to have to change the bulb. By that time they will have forgotten what they were going to send the memo for  :ev :ev :af

I ay daft yer know   :co         

Just off track for a mo. The shortcuts in the reply window don't work, but I expect that they were designed for the poor folks on Windoze  :'' :'' And not for us Mac users  :ev :co
Never forget that you are unique. Just like everybody else..
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