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TwinZygger Open Source Airplane Early concept sketch. The actual design most likely will not look like this.
Introduction Karoliina Model 2 Aircraft has a temporary project name TwinZygger. Kate invented the name Zygger from Karoliina's talks about Stagger-Ez because the Stagger sounded funny to us. So she started calling my drawings as zygger-pictures. Anyhow this is the place I am putting all data for the conceptual design I am doing, including Rhino drawings and everything. Karoliina Model 2 (Twin Zygger) is not actually a twin engine airplane, it actually has three engines - sort of. It is a hybrid aircraft with two gasoline engines and at least one additional electric motor (to be specified later). This is the first long endurance twin concept. If you are a aeronautical engineer or a student or otherwise well informed about the topic and you think you could be able to contribute, feel free to join the project. The project is fully open source and all design, plans and everything are with GPL or LGPL -style (copyleft) license. The concept The concept has been defined as a long endurance high efficiency twin engined aircraft which can carry at least two persons with full resque equipment required for trans-Atlantic flight - ("Flying The Pond"). The plane shall have long endurance and long range and shall meet FAR part 23 safety requirements for landing speed and stall/spin behavior. The handling qualities shall belong to category I, and the plane design point is a serious personal IFR machine, not a LSA or UL sport aircraft. The intended use is traveling long distances over water with additional safety of the second engine. The MPG target is high, the plane should be comparable to Toyota Prius in efficiency (kilometers per liter). DISCLAIMER Everything needed to build a proof of concept plane will be available for free to everybody. There is absolutely no warranty of any kind, use anything from this project with your own risk only. Why to join? The motivation for joining the project may vary, but one possible motivator can be getting some fame. If you are a student looking for e.g. getting a job from this field, instead of empty CV, you have something to show, you have contributed to one of the first open source airplanes in the World. Currently I am aware only of two other open source airplane projects, so this one could be the third one. You have a chance to be a pioneer. Click the join button now and lets make this thing into the reality together. Tools Open source tools are preferred, but also commercial tools may be used. The following open source or otherwise free tools are defined as standard:
The following commercial tools are included in the standard tools to use for this project (these are relatively affordable tools)
Other tools: Expensive tools like MSES, Catia V5, Mathlab, Mathcad, Fluent, FEM-programs etc. can be used to contribute to the work, but the data has to be provided in addition to the original format, in a format which is readable with some of the abovementioned tools or in plain text, pdf, or html format. Recommended reading Further information: Please see the gforge.katix.org/gf/project/twinzygger/wiki/
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