Modellsport Schweighofer Alpha Jet Project
04-04-2013, 03:55 AM
Modellsport Schweighofer Alpha Jet Project
The Modellsport Schweighofer Alpha Jet Project (Part 1)
[img]N:\mohr\Alpha Jet Projekt\DSC00037.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\DSC00527.jpg[/img]
The beginning of this project took place at the toy fair in Friedrichshafen/Germany in autumn 2012. While drinking a well-earned after work beer at our booth with some friends from other companies and model pilots the idea of starting something special which hits our modeller’s hearts. What can be realised what is possible?<o
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By the way – during this long lasting discussion we’ve decided to take more of our Styrian Puntigamer beer to the next fairs.
At the end Robert Fuchs came up with the idea to start the new Alpha Jet Project and we came to an agreement about the scale.<o></o>
Because of the short distance to Red Bull and their Alpha Jet and the attractive appearance I have decided to start this project for our company.<o></o>
Everybody who knows me and Robert can imagine this will be an extraordinary project.<o></o>
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More information will follow these days.<o></o>
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Greetings<o></o>
Mario Walter<o></o>
Modellsport Schweighofer
www.der-schweighofer.com
04-08-2013, 01:55 AM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 2)[/b]
Initially I’d like to introduce all the involved persons:
Robert and Sebastian Fuchs… (Surface details on the master model, building of the prototype)
Robert and Sebastian belong to the small circle of the most successful model pilots in Europe and the whole world, their team is supported by Red Bull. Their models, their ambition, their friendly appearance and the professionalism when flying models have been the foundation of the today known formations teams in Europe. Roberts’s knowledge about model planes is the guarantee for a working result.
[img]N:\mohr\Alpha Jet Projekt\fuchs_redbull.jpg[/img]
Peter Cmyral…(construction of the undercarriage, technics)
Some of us will know the name “Cmyral” from Jet meetings in Europe. Since his Childhood modelling occupied an important role in his life. Initially he has worked as a photographer, but soon he changed his job to Steyer Daimler Puch where he has worked as an engineer in the electronic laboratory. His way to retirement has lead him through almost all stations in the Steyer group what effected in a very wide range of technical understanding an abilities. Peter has agreed to take care of the part “undercarriage and brakes”.
Peter was the organizer of the 3<sup>rd</sup> Jet WM in Austria.
[img]N:\mohr\Alpha Jet Projekt\Peter-Cmyral.jpg[/img]
Peter Glück…(Construction and building of the master model)
Peter has studied industrial design. After his studies he has constructed bucket seats for flight simulators and housings for paraglide instruments. Since 10 years Peter has built many master models for considerable companies and he has agreed to take care of this part of our project.
Mario Walter…(Modellsport Schweighofer)
Modelling plays a very important role in my life. With 4 years I learned model flying with the good old Airfish model of my father. In the year 2002/2003 I have visited the Nitro Days in Punitz and I’ve seen the first turbine powered models. Since this event I’m fascinated in Jet modelling. Since 2006 I made modelling to my profession.
[img]N:\mohr\Alpha Jet Projekt\mariowalter.jpg[/img]
We’ve decided to make a competition to get some tension in our report, the price you can win will be announced later.
My question is: what do you think – how long is the fuselage of our Alpha Jet? Here are the details to our competition
[img]N:\mohr\Alpha Jet Projekt\AlphaJet07.jpg[/img]
We are going to draw one Alpha Jetfrom Flitework to all participator.
Greetings
Mario Walter
Modellsport Schweighofer
04-08-2013, 09:22 AM
RE: Modellsport Schweighofer Alpha Jet Project
http://www.rc-network.de/forum/showt...ha-Jet-Projekt
04-09-2013, 01:37 AM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 3)[/b]
To plan and to build a high-end model plane tight below the magic 25kg limitation is difficult but practicable with a lot of effort.
We are playing with our Alpha Jet in another league excessing the 25kg limit. Therefore it’s getting much more important to stick exactly to the physical and technical rules to get our full carbon model through all the necessary certifications.
As far as I’m informed have all unique large Jet models with weights above 50 kg are made of wood – our Alpha Jet will be a full carbon/glass model which will be flown by formations cup teams.
This is our timeline for the Alpha Jet Project:
• First Ideas (Fair Friedrichshafen) // November 2012
• collecting the information, planning // December 2012
• start of the building of the master model // January 2013
• finishing of the master model // April 2013
• finishing of surface details // June 2013
• finishing of the mouldings // August 2013
• laminating of the first prototype // September 2013
• Building of the prototype // Winter 2013/2014
• Maiden of the Schweighofer Alpha // spring / summer 2014
All of you who have experience with such a project will see this timeline is very tight!
More information will follow!
Greetings
Mario Walter
Modellsport Schweighofer
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet_teil3_630.jpg[/img]
04-12-2013, 01:10 AM
RE: Modellsport Schweighofer Alpha Jet Project
We’ve found the winner of the competition![/b]
We’ve finished our competition. More than 700 participants have made their suggestion about the length of our Alpha Jet. I’d like to say thank you to all participants in the name of Modellsport Schweighofer.
[img]N:\mohr\Alpha Jet Projekt\teil4_bild.jpg[/img]
Here is the technical information for which many are waiting:
• fuselage length without rudder: 4600 mm
• fuselage length with rudder: 4653 mm
• fuselage with: 702 mm
• fuselage height without rudder: 673 mm
• wingspan: 3530 mm
• length per wing: 1531 mm
• wing root: 1027 mm
• thickness of the wing root: 103 mm
• wingspan of the elevator: 1676 mm
The winner of our competition is Mr. Lasse Schwarze [/b]we’ll contact you these days for the shipping details of your flitework Alpha Jet. Your proposal of 4650 mm was the closest rating.
Now it’s time to start with the building report!
More next week.
Greetings
Mario Walter
Modellsport Schweighofer
04-12-2013, 02:44 AM
RE: Modellsport Schweighofer Alpha Jet Project
[img]N:\mohr\Alpha Jet Projekt\alphajethp.jpg[/img]
http://www.alphajet-projekt.com/index_en.html
Greetings
Mario Walter
Modellsport Schweighofer
04-15-2013, 06:07 AM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 4)[/b]
It’s very important to collect as many information as possible before starting such a project. Robert Fuchs has built an Alpha Jet a few years ago this fact is a support for us. He got the possibility from Red Bull to measure their original Alpha Jet and to take pictures of this plane. For this reason we had a lot of documentations we can base on for our project including surface scale details. After 2 weeks working with the CAD Software Peter Glück has made us a special Christmas gift and presenting our Alpha Jet the first time on his computer monitor.
We have printed one of these drawings – I can tell you – it’s a very unimaginable feeling!
To show you the real size of the Alpha Jet we’ve made this picture with two of our female colleges in front of our company building.
[img]N:\mohr\Alpha Jet Projekt\DSC_3802.jpg[/img]
Robert Fuchs and Peter Glück have planned another two weeks to fix important details like fuselage division, static calculations and so on. It was very important for Robert to get the Jet divided and the longest part must not be longer than 3 meters to get the parts transported in a standard Bus or trailer.
At the end of these preparations the starting shot of the project was at the 14<sup>th</sup> of January with the starting of the CNC milling cutter.
You can see the formers at this pictures and a cordless screwdriver to get an impression of the dimensions.
[img]N:\mohr\Alpha Jet Projekt\spanten011.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\spanten021.jpg[/img]
Greetings
Mario Walter
Modellsport Schweighofer
[img]N:\mohr\Alpha Jet Projekt\zeichnung021.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\zeichnung011.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\zeichnung03.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\zeichnung04.jpg[/img]
04-18-2013, 10:52 PM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 5)[/b]
Building of the master model
There are many methods and ways to get to a satisfying result. Peter Glück builds his master models of Styrofoam blocks which are all placed flat on the work desk. His reference is always the desk surface which is absolutely straight.
It’s very important to cut the blocks exactly in 90° angles. For this Peter has built this hot wire cutting machine to guarantee this exactness.
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet-12_02_2013-11.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet-12_02_2013-21.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet-12_02_2013-31.jpg[/img]
Building of the fuselage
The gluing surface between two blocks is always the centre line of the model:
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet-12_02_2013-41.jpg[/img]
Therefore you get automatically the exact centre line for gluing the formers
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet-12_02_2013-51.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\Alpha-Jet-12_02_2013-61.jpg[/img]
Furthermore Peter always finds the exact centre line independent how much material he has cut or sanded. Finally all the blocks for the fuselage are being glued together. Then the Styrofoam is sawed and sanded to get the correct form of the model.
After this work we had the first real impression of the giant size of the Alpha Jet.
Nice weekend!
Mario Walter
Modellsport Schweighofer
04-19-2013, 07:02 PM
RE: Modellsport Schweighofer Alpha Jet Project
I just spent a week in Germany and have concluded that you Germans do everything right from the Autobahn to beer. It may cost more but it's definitely worth it. [8D]
Looking forward to the videos when it's done.
Cheers,
PaulD
04-20-2013, 04:04 AM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer is a Austria Company
We Germans make perfekt beer, build BMW and Audi, build perfekt Autobahnen, developed the original AlphaJet with the French and have no humor.
But Austria guys jump out of space and build model-RC-jets in 1:2,58
Best regards
Markus
04-20-2013, 09:14 AM
RE: Modellsport Schweighofer Alpha Jet Project
Markus,
Oh, I guess I did jump to conclusion. [&:]
Sorry about that. Guess the Austrians feel pressure to out-do the Germans.
PaulD
don´t worry about that. Its obvious to mix up Germans and Autstrians. They are neighbours, speak also a kind of german language with a terrible slang
and yes, in fact, it seems so that they want to out-do us.
Best regards
Markus
04-20-2013, 12:52 PM
RE: Modellsport Schweighofer Alpha Jet Project
inthe start its said 1:4, and i see pictures of at layup of af wing, and suddently the model is in foam and gigantic ?
are you making 2 sizes?
04-28-2013, 10:02 PM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 6)[/b]
Building of the master model
[img]N:\mohr\Alpha Jet Projekt\teil6_01_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil6_02_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil6_03_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil6_04_big.jpg[/img]
For accurate fittings of some formers Peter has used these wing tubes:
2 pieces 50 mm x 1000 mm
1 piece 40 mm x 500 mm
4 pieces 30 mm x 1000 mm
2 pieces10 mm x 1000 mm
I wish all my models in my modeller’s career had such high quality wing tubes – these tubes would have saved a lot of time I’ve spend with repairing bad tubes in my models.
[img]N:\mohr\Alpha Jet Projekt\teil6_06_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil6_07_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil6_08_big.jpg[/img]
The next step is gluing the other fuselage parts together, preparing the canopy, the gap for the all moving elevator and the wing-fuselage passage.
Regards,
Mario Walter
Modellsport Schweighofer
04-29-2013, 12:36 AM
RE: Modellsport Schweighofer Alpha Jet Project
Please sort out how to load pictures, this thread is frustrating to follow with big empty boxes [
]marcs
http://www.rc-network.de/forum/showt...light=alphajet
04-30-2013, 12:37 AM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 7)
[img]N:\mohr\Alpha Jet Projekt\teil7_01_big.jpg[/img][img]N:\mohr\Alpha Jet Projekt\teil7_01a_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_01b_big.jpg[/img]
Here you can see the gluing of a 10/8mm aluminium tube for the acceptance of the pitot tube. Additionally the fuselage parts of the cockpit area are jointed.
[img]N:\mohr\Alpha Jet Projekt\teil7_02_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_03_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_04_big.jpg[/img]
For the cockpit area Peter has to make wooden former which is used as a guidance for the cutting wire.
[img]N:\mohr\Alpha Jet Projekt\teil7_07_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_08_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_09_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_10_big.jpg[/img]
In the rear section formers are used to get the correct position for the elevator.
[img]N:\mohr\Alpha Jet Projekt\teil7_11_big.jpg[/img]
[img]N:\mohr\Alpha Jet Projekt\teil7_12_big.jpg[/img]
Next step: gluing of the torsion tubes, gluing of the rudder mounting, gluing of the rudder tubes, start of the wing building.
Regards,
Mario Walter
Modellsport Schweighofer
05-13-2013, 06:08 AM
RE: Modellsport Schweighofer Alpha Jet Project
Schweighofer Alpha Jet Project (Part 8)[/b]
In the meanwhile you can see more, the project is running. The next step is gluing the torsion tubes with 5 minute epoxy.
After this Peter glues the mounting area of the rudder in the fuselage. Here it’s very important to keep the correct angle. Peter has mounted formers at the top and bottom section which straightens the tube.
During glue curing times Peter has started the building of the wings and control surfaces.
The building is similar to the fuselage. The wings are connected by 2 50mm Strongal tubes.
Here the basic preparations are finished and the parts can be assembled to get an impression of the size. Peter’s friend is 179cm tall.
The next step is cutting and sanding of all these parts with beginning at the front part.
Regards,
Mario Walter
Modellsport Schweighofer