Bernd Lewerenz Posted July 4 Share Posted July 4 After the "Westland Lysander" project was completed, I wanted to build another model just from plan. In contrast to ARF models, this still gives me the most pleasure.My choice fell on a model of the Dornier Merkur.The original was a strutted high-decker that could carry up to seven people.The model has a wingspan of 1720mm and is designed for electric engine with 3S-Lipo and 60A controler. Building instructions with a parts list were also included to the plan. The model is made entirely of wood and after checking my inventory I was ready to go. Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 4 Author Share Posted July 4 The wing is made entirely of balsa, except for the root rib. It is also strutted.t. Since the root and end ribs have the same dimensions, a sample rib made of 5mm plywood is sufficient to make all the other ribs.The wing halves are connected with an 8 mm carbon tube and a 5 mm carbon rod. The construction is supplemented with auxiliary ribs at the front and two auxiliary spars at the rear. 1 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 4 Author Share Posted July 4 Since only one half of the wing is drawn, the plan was turned around, rubbed with oil and the other half of the wing was built on top of it, which guarantees congruence.The ailerons are built at the same time and cut out later.All in all, really classic model building as I like it.The tailplane The horizontal tailplane and vertical stabilizer are also a classic construction made of lightweight balsa and are built directly on the plan; the damping surface of the horizontal tailplane is unplanked, while the rudder is planked on both sides with 1 mm balsa, which makes it torsionally rigid. 2 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 5 Author Share Posted July 5 the fuselage was not built in the classic way. Here, too, two side panels had to be made first.These were not connected to the former as usual, however.First, two frame constructions had to be built according to the images Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 5 Author Share Posted July 5 These also contain 4 feed-throughs into which strips of board material are later inserted and glued.The middle section of the sash is then screwed to it. Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 5 Author Share Posted July 5 The battery compartment cover with dummy cylinder head cover. The assembly of this part is somewhat complex.It consists of 16 parts and the reason is the imitation of the front cylinders.All parts are shown in the plan and the assembly requires some thought.4 small magnets hold the unit on the fuselage 1 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 5 Author Share Posted July 5 The wing center section.The center section of the wing consists of 5 ribs, which I first attached to the plan with small aluminum brackets and pushed the empty tubes through.The left and right wing halves were then connected to the center section using the carbon tubes and only now were the empty tubes glued in place with epoxy. This was the only way to ensure that the wings would later join without jamming. 2 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 11 Author Share Posted July 11 weather is fine here in Germany. now I prefer going to my airfield in order to fly.When the weather is bad, I will continiue building the dornier merkur 2 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 11 Author Share Posted July 11 5 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 12 Author Share Posted July 12 Perhaps someone has noticed that the left side has 4 windows. That is wrong. There were only 3 windows on the left. I will correct this when the weather gets worse.😇 Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted July 12 Share Posted July 12 Speedy progress! Looking good... Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted July 12 Share Posted July 12 Excellent build 👍 but I hate how some people can be so clean and tidy , No finger marks or blood from cuts on the wood and all tools perfectly placed !!! Only joking and well done on on an excellent build blog and a tidy workshop . I'll watch the progress. Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted July 23 Author Share Posted July 23 Hi and back fom a few days off. I know model builders who build perfectly. No fingerprints, no blood. They are perfectionists. Not me, but no lasering either. It's all manual work and really not perfect, but I love it, and the tool is probably German thoroughness.Next week I spent a few days in croatia. My wife was born there.Off course, RCM/E is with me.😇🤑. Weather here is shit.My words are also joking😝 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted September 27 Author Share Posted September 27 1 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted September 27 Author Share Posted September 27 The Dornier Merkur is covered and the Undercarriage mounted Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted September 30 Author Share Posted September 30 3 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted October 3 Author Share Posted October 3 3 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted October 3 Author Share Posted October 3 The first flight with the Dornier was successful, the model flies wonderfully slowly and realistically, with a Lipo 3S/3000mA flights of 7 to 8 minutes are possible. There should not be much wind, then you can enjoy the flight image Quote Link to comment Share on other sites More sharing options...
Basil Posted October 4 Share Posted October 4 Hi Bernd, like your build. You should have included some more details, we like to see that. Where did you get your plan ?. I can only find a 1.2 span plan by Sarik!!. Thanking you in anticipation, many thanks Bas. Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted October 5 Author Share Posted October 5 The last images BY by 1 Quote Link to comment Share on other sites More sharing options...
Bernd Lewerenz Posted Sunday at 09:36 Author Share Posted Sunday at 09:36 Yes, you're right, I always think that people like to read build reports but then don't build, which is obviously my mistake. So here is some information. Reference building plan: Verlag für Technik und Handwerk. Order number: 320.1360- Engine: N35-4-790 engine from Aeronau Germany Propeller: 13X6 APC Lipo: 3S/3000mA Servos: Rudder and elevator: DS595BBBG from D-Power Aileron: Master DS 2813 If anyone wants to build the model, I will be happy to answer any questions Quote Link to comment Share on other sites More sharing options...
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