GliderIreland - Ireland RC Forum - Flying Model forum in Ireland
Gliders => Slope Soaring => Topic started by: Stephan on February 19, 2008, 22:30:21 PM
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Hi folks
I decided to join the Island Slope Rebels Fly In in Mai, however Ireland is just to fare away to take the car for a short weekend trip :roll: . Thus the airplane is the only choice to get there quickly, and when it should be within the budget the cheep ones are the only feasible. However then each bag you take counts :evil: thus to take a model airplane is somewhat complicated. After some research however, I finally found what I was looking for. A glider which fits into the following boundary conditions:
it has to be a wooden construction
a small glider which I can put into my bag
a glider which can stay strong winds and give you a lot of fun
a glider easy and quickly to build
which is not to expensive
:shock: whow, that’s quit a list, however I got it. It is the Hai (Shark) from Wolfgang Werling (http://www.wwmodelle.de/Preisliste_Frasteile/preisliste_frasteile.html) presented some years ago in the FMT, a German Model Airplane magazine. The magazine and the plan was already sold out, however via the internet I could get one. The short-kit is ordered and as soon as it arrives I will start the construction. So see you
Cheers
Stephan
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Hiya Stephan ! :D
That's a nice glider ! Looking forward for the building photos :D
And finally some real challenge after all those vintage things ! :-# :mrgreen:
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Hiya Stephan ! :D
That's a nice glider ! Looking forward for the building photos :D ...
Yeah it has realy a nice shape, and I learned that it shoud be quit fast, thus just the right toy for the windy slopes of Ireland :mrgreen: I only hope that my shipping strategy will work :roll:
Stephan
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God Steph, you have a strategy !? :P :P :mrgreen:
I really like the shape of this machine ! And the price looks really good too ! :?:
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Hey, Steph, that looks ideal for what you want! Nice looking plane too!
Chris
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Hi Chris
yes, from all what I learned about it, it just ideal for the slope, I hope I can confirme that after my trip to Ireland :lol:
Stephan
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By the way Steph, forgot to ask... You go electric with it or pure glider ? :?:
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By the way Steph, forgot to ask... You go electric with it or pure glider ? :?:
I will vote for the electric version, because that allows me to use it in the plain too :lol: ok, it is against the pure rule of soaring :roll:
Stephan
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only scale to fly in irland :lol:
J-77 :D
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only scale to fly in irland :lol:
[-X I have had a look on the details Vincent, everything is alowed even this insulation stuff :lol: and I decided to participate in one of the races :mrgreen:
Stephan
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Ok lets start. Today my short-kit arrived, realy good service. I immediately put it to my basment and had a closer look. When I opened the parcel the parts were nicely wrapped up in a bag
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3248-r.jpg)
After unpacking, the parts are put together in the individual phases of construction
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3257-r.jpg)
The parts are properly milled and some of them are alike the construction kits of childrens
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3259-r.jpg)
and I was not able to wait, I immediately put some of them together, it fits realy well, and I just put some CA-glue where the parts comme together.
I also started the rudder fin right away
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3265-r.jpg)
it's realy easy, in three steps its done
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3266-r.jpg)
I red in the german forums that the fin will easily break so I will cover it with a layer of thin plywood and cut out the interior, as indicated in the plan.
Thats it for today, if there are to much errors in my english writing just correct me, I can only learn, because upright now I am not so used to the modell airplane vocabulary :D
Stephan
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:clap: That looks really neat and well conceived !
I don't see the plan for it... You have to buy it to the magazine ? :?:
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only scale to fly in irland :lol:
J-77 :D
Well, I think Steph is up to race his doppi ! :mrgreen:
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Good work, so far, Stephan! That's a really neat looking model, and what looks like a cleverly designed kit.
Don't worry about your English - you're doing great! If you can manage "vocabulary", you are doing better that 90% of the people living here :roll: !
Chris
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:clap: That looks really neat and well conceived !
I don't see the plan for it... You have to buy it to the magazine ? :?:
there is non Fred you have to buy it from the FMT, I have had the chance to find a guy via the internet who still have had the magazine and gave me the plan for nothing :D
Steph
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Ok guys
some business trips and than some vacation time delayed my building somewhat, but now I am back and I will start right away.
As indicated the ruder fin is somewhat sensitive and so I followed some advices I read in the german forum.
I decided to go with 0.6mm playwood on each side of the ruder fin. I think this will be enough.
First I plotted the two parts on the playwood sheet and drew the lines for the cut-out as indicated in the plan
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3403-r.jpg)
0.6mm playwood can easily be cutted with a pair of scissors and thus the job is quickly done
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3406-r.jpg)
I glued it with slow white glue and now it will dry under some 50kg weights :lol: till tomorrow
Cheers
Stephan
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Hiya Steph,
good to be back building the thing !
1 month to go !! :D
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...yeah, it will be tighter than I want it to be, but there are to many business trips at the moment :cry:
Stephan
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Today I began with the fuselage. At first I glued the former 4, than the bracing for the wing mount no 9.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3413-r.jpg)
Because the whole fuselage is somewhat bended I am not shure whether that was the right thing to do :?:
I than glued both halfs together...
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3415-r.jpg)
When I now want to put the firewall in, the bending of both fuselage halfs ist not symmetric :!: I thus put the front in water for the night and hopefully tomorrow morning before going to work I can bend them easier :roll: and let them dry till the evening.
Ceers
Stephan
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So Stephan, what are the results ?
All ok now ? :?:
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So Stephan, what are the results ?
All ok now ? :?:
:D yes, my water procedure was seccessful. After being completely wet, I put the fusselage into a kind of straightening rack and after drying it was ok. Pictures will follow this evening.
Cheers
Stephan
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So, as promissed some update about the building. As already mentioned the fuselage is after the straightening realy good and I could continue without any worry.
The next step was to glue the firewall with the right set-up (side thrust and the other thing where I don not know the right word :!: ) which was quit tricky. After drying I cutted the upper front fuselage sheeting and glued it too.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3423-g.jpg)
Than, I cutted four square borders 10mmx10mm and glued it in the gaps between firewall and sheeting
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3426-g.jpg)
... and after sanding it looks already realy nice
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3429-g.jpg)
The fin set-up was the next delicate step. I throroughly ajusted and fixed it with some clamps.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3432-g.jpg)
With some ca-glue it was pre-glued and with thickened epoxy finaly fixed.
However I haven't realy trusted this set-up therefore an additional former was put in the front of the fin to get another fixpoint. I think now its ok.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3433-g.jpg)
After putting the rear sheeting on it looks alredy as a real fuselage and I can now attack the wings.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3438-g.jpg)
Cheers
Stephan
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Look nice Stephan :D . Keep up the good work.
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Look nice Stephan :D . Keep up the good work.
Thanks Alan, hope I can keep up even if the design of the wings shows some features I do not realy like, but lets start from the beginning.
Even when there are not a lot of ribs and you should move fast I struggled at little bit at the begining. I do not like mounting the ribs only being fixed at the longeron and than fixing the leading edge and the trailing edge. I like to have two fixing points from the beginning on. Therefore I decided to work with an auxiliar LE of 3mm as we call it in Germany. When finished I will glue a second one of 3mm against the first.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3444-g.jpg)
Second, the ribs are glued just against the LE and TE without any recesses in the LE/TE I changed this at lest for the LE, as you can learn from the following picture ( I am missing some words in my vocabulary to realy tell you what I mean :( )
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3449-g.jpg)
After that changes I felt much more confortable with the construction. The ribs are quickly glued. Because I want to have to wing halfs, I also had to made two root ribs. They were designed with "profili2". The print-out I putted on 2mm playwood, cutted it and sanded it.
Thats now the current status. Before fixing the plugin mounts I have now to prepare the second wing in order to properly adjust the dihedral.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3453-g.jpg)
Cheers
Stephan
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( I am missing some words in my vocabulary to realy tell you what I mean :( )Stephan
A Picture is worth a thousand words :D :D :D :wink:
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This thead makes me want to get covered in balsa shavings again :D .
Chris
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This thead makes me want to get covered in balsa shavings again :D .
Hi Chris, just do it, its great fun :D
So, some news about the construction. Both wings are finished in its basic structur, thus I could start to take care about the plug-in mount. The main plug in mount will be realized by a 6mm copper tube with a 4mm piano wire inside, and will go from the root rib through rib 20. Therefore, Rib 20 and 21 will be strengthen by a 1mm playwood rib glued on the balsa rib.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3455-g.jpg)
This work is indeed easier to do it before having glued the balsa ribs already, well I have just not made up my minde correctly before starting the construction :!: .
As soon as the ribs were glued I put first the front tube in the right position, the right dehidral is got by just putting under 15mm balsa at the end of both wings. Then I pre-fixed the tubes with some fast epoxy. The next step was to adjust the auxiliar plug-in at the rear of the wings, which is indeed much smaler, only over the first two ribs and a 4mm copper tube with a 3mm piano wire inside. Also this one is pre-fixed with fast epoxy to get it in the right position.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3458-g.jpg)
Now, everything can be finaly glued overnight with slow epoxy. So, if you have now a closed look on it, there is still one mistake, yes, the bias of the root ribs is to big :cry: thus I have to put some balsa on and sand it into the right angle, a kind of a botch job :roll:
Cheers
Stephan
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Often this are the little things which takes most of the time, but I am moving on. The support of the servos is build in...
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3478-g.jpg)
... and at the moment the sheeting is drying. Tomorrow I will show a first picture fuselage/wings :D
cheers
Stephan
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So, as announced today I put togehter the parts, made the changes with the root ribs that both wings fit better together, glued the winglets, decided to add to each side of the ribs a triangle and drilled the holes for the screws to fix the wing and that's that baby right now.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3508-g.jpg)
The weight so far is 280g, have to add the radio and the batterie which is about 220g and the covering, so I should end up somewhere between 550 and 600g, :oops: oupps I forgot the engine which makes another 50g but it should be still ok :D , I am not far away from anybody else who build this glider and that with all the changes I made to get a stronger fuselage and wings.
Cheers
Stephan
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:shock: Looking really good Stephan ! :clap:
I can't remember if you've told us... You are going to put an BL Inrunner +lipos ?
Can certainly do a nice glider too :?: To stay pure... :wink: :) :P
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I can't remember if you've told us... You are going to put an BL Inrunner +lipos ?
Can certainly do a nice glider too :?: To stay pure... :wink: :) :P
... I have an outrunner lieing in a corner with 8NiMh 1100 GP, this should do the job
Stephan
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Ok guys
yesterday and today the covering was on the schedule. At first I sanded a littlebit ( I hate sanding) than some prep stuff on (Glattfix???) ones more sanding and than covered with Oracover Light (wings) and normal oracover for the fuselage. The engine and controler are in, still need to get the right balance point some programming on the radio an thats it. I think next week end I will made the first trial.
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3555-g.jpg)
see you, cheers
Stephan
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Sweet Stephan ! :clap:
HAve you made the case for it yet ?
And we want photos of the thing at the slope/field now ! :D :D
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Congratulations, Stephan, great build :clap: !
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Hi everybody
today was the maiden flight of the Hai1. Everything went well, even when its first flight was a little bit agitated. For the second flight I trimmed some elevator which made the flight much better. I have still to adjust the CoG correctly and then its just fine for the slope :D Some pics to get you some impression at least (sorry, I have not have an experienced photographer with me :? )
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3677-g.jpg)
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3679-g.jpg)
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3690-g.jpg)
(http://www.gliderireland.net/forum/images/uploads/Stephan/IMG_3691-g.jpg)
Thats it, I hope I will have a lot of fun with it at the Mt Leinster FlyIn
Cheers
Stephan
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Sweet Stephan ! :D
Congratulation on the successful maiden flight ! :clap: :clap:
Look good in the air ! Can't wait to see it now ! :D
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Fred
I have still some adjusments to do with regard to CG but I htink it will just be right for the slope with strong wind less for where I live :?
Stephan