Bernd Lewerenz

Sorry, I mean 10m of course

Last week I flew my Aviatik with the newly adjusted angle of attack.And this time it worked: the aircraft flew without any problems and was stable.After a few rounds, I wanted to land.During the landing approach I was blinded by the very low sun.As a result, I flew too low towards a small wood and the model landed on a tree at an altitude of about 1 meter.At almost 76 years old, I no longer climb trees.So there was nothing left to do but cut down the tree. It was dead anyway.The fuselage was destroyed, but the wings remained intact.That's why I have now mounted the wings on my Kapitän and corrected the angle of attack there too.Now my captain is also flying stably and I at least have something from my aviation.We model pilots are all familiar with this.Sometimes you have bad luck.But never mind, my next model is already in the works. It's a Klemm25 from Krick.

Thank you very much for your support. The down thrust is 4Degree( my Kapitän had 3degree and this was to litle) To measure the angle of attack I use the setting angle gauge from Robart and an additional electronic one with digital display, both displays were about the same The weight is about 800g ready to fly. The engine is from my Kapitän and both models are similar Airscrew is 9X6 I understand your arguments very well, because Jaromir Pipek is a well-known model maker in Germany.On the other hand, my new information about the angles comes from Ralph Müller, who has also developed many models and was very shocked by Plus 2Grad. So the only thing left is learning by doing. If the weather is good, I'll try a new start and report on it. let's be honest, if everything always works well, it gets boring too.

Hello together,wich you a happy new year and allways happy landings. My first landing with the Aviator on the first day of the new year was a disaster.The take-off was good, but in the air the model was not controllable.It staggered through the air and could only be forced into a turn with maximum rudder deflection.After about 30 seconds of flight the model crashed. Frustrated, I drove home.Due to the low mass of the model, the damage was not serious and was quickly repaired.Now my ambition was awakened and I wanted to find the reason for the crash.The electronics were not the reason.Research on the Internet revealed that the upper wing of a biplane must always be set at a negative angle. The lower wing, on the other hand, must be set at a positive angle.With my model it was the other way around.You always learn something new, even at an advanced age.Now I have changed the angle of attack of both wings and increased the side thrus.Upper Wing Minus one degree, lower wing Plus 1Degree.I admit I'm a bit scared of the next flight, but as soon as a nice calm day arrives, I'll start the Aviator and report back.Keep your fingers crossed.

Final work. Again, classic model building. The fuselage was treated with pore filler and covered with paper, while the wing and tail were covered with Proficolour2 from Practical scale. This film is ideal for vintage models.Two table tennis balls painted by my wife serve as pilot heads and look funny. They are also very light.The plan shows the emblems of the German Air Force and a machine gun..However, I have opted for a peaceful airplane.That's why I have attached flying doves to the fuselage and wings. I think that's better in view of the world situation. Now I have been waiting for better weather for the first start.

Thank you, made from scrap wood

Ready for covering

The undercarriage is ready for installation

The undercarriage is being bent.It looks a bit weird, but that's the perspective.The undercarriage consists of a front and rear bracket with 2 mm steel wire.Then comes the 3 mm axle for the wheels. Then everything is soldered

Hello and thanks for the tip. The angle of incidence of the lower surface is zero degrees.The tail unit also has zero degrees, so you can say that the angle of attack is plus 2 degrees altogether.The motor is an Extron 2712/26 KV100 Controller 30Ampere Servos: 2X Master S766MG/MG= metal gears

Adjusting the angle of attack of the upper wing of plus 2 degrees

Sorry will avoid bad language in futur😇

Both wings are almost finished and are already taking their place; they are not yet attached and are therefore slightly crooked

THe wings. Bad weather in Germany and a good reason, to build the wing Upper and lower wings are both drawn in the plan and the only difference is the wingspan.The bracket for the undercarriage and the wing bracket are also positioned in the lower surface.First, 50 ribs had to be made from two, four and five millimeter balsa wood.😂 Since all ribs are the same size, a master rib made of 5mm plywood was sufficient.Admittedly a somewhat monotonous job, but better than housework.Once the wing connectors had been made, the construction of the lower wing could begin. Due to the flat underside of the ribs, the four halves were quite easy to assemble.Both wings have neither spar webbing nor nose planking.The reason is probably the main spar, which is very thick at 12X5mm.Images later