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  1. F

    Dormoy bathtub replica

    It's been a while since I posted here. Studies and other projects consumed too much time so the building stalled for the last two years. However, my dear friend Karel Notebaert did some amazing CAD work of the plane in preparation of his Bathtub built. He allowed me to share some of the renders.
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    Dormoy bathtub aileron control

    I just noticed this reply now, so sorry for my late response, I didn't have much progress over the past year. Mainly because my studies take up too much time. But I am really looking forward to start building again! For the wing only leading edge aluminum skin and the aileron mechanism have to...
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    Bench test KX155

    Found it! As shown in the pinout, connected 11, 12, N and M together and now they light up. Audio goes between 9 and K. Was just unsecure since I don't have experience with avionics.
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    Bench test KX155

    I can't, the harness and tray should stay in the heli, for future use. Thanks for the suggestion though.
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    Bench test KX155

    Thanks for the replies, I remounted it in the heli last week and everything works fine, so it is just about connecting the right pins. Headphones is comm audio high or low?
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    Bench test KX155

    Hi fellow builders I recovered a working bendix KX155 NAV/COM from a helicopter and I want to put it in my stampe to use on COM mode. I wanted to bench test it but powering it doesn't even light the display. Does anyone know which pins have to be connected to even light the display? I...
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    Identify this (warbird?) engine

    Good question. I think it will be too heavy for my 1924 bathtub replica :lick: I was hoping that it would be a pratt and whitney P47 / corsair engine. Not sure if i'll buy it. They are not so rare I think. Other opinions about this?
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    Identify this (warbird?) engine

    Hi fellow builders I have a chance to get my hands on an 18 cylinder pratt and whitney engine. However before buying, I'd like to know which type it is, and in which aircraft they were used. Identification plates are gone unfortunately. Here is a picture of the engine. Hope that you guys can...
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    Collins radio equipment

    Hi everyone I got a stack of Collins aviation radio equipment as shown on the pictures. I can give a more detailed list upon request. Are there people interested in this? Or if you know where I can advertise for this, let me know please. Thank you
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    Wake visualisation

    Thanks for the tips. Sanders smoke generation is too advanced for my purposes. I contacted Manfred Radius and learned that he uses smoke generators from superiorsignal.com, He warned me however, that they are not likely to ship these items (classified as explosives) outside the US. So I will...
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    Wake visualisation

    Quantify the negative effects. It is not restricted to formation flying, also wind farms experience these problems. I will not consider complete wakes of aircraft, only single vortex configurations in proximity of a wing will be considered. A lot of studies have been conducted in wake...
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    Wake visualisation

    Hi Everyone I am a masters student in aerodynamics and for my thesis i'm interested in doing vortex-wing interactions. This is a problem encountered for example during formation flying. Tip vortices shed of the front aircraft can cross the wing (top or bottom) of the rear aircraft, altering the...
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    Aerospace Internship

    Thanks for the reply. I live in Belgium but I can go anywhere in the world if the internship offers what I am looking for. Kind regards Simon
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    Aerospace Internship

    Hi Everyone Since this platform is also looked at by a lot of aerospace professionals, I thought launching this question here might give some interesting results. I am a Masters student in aerodynamics at the Delft University of Technology and Danmarks Tekniske Universitet. The fact that I am...
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    Dormoy bathtub replica

    fitted the wing on the fuselage for the first time
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    Dormoy bathtub replica

    I am Simon, 21 years old and aerospace student at TU Delft. Together with my father I am redesigning and building a Dormoy Bathtub Replica. The project started in 2012 with the engine. But building the wing began in December 2013, the frame February 2014. Engine will be citroen visa engine...
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    Dormoy bathtub aileron control

    Hello fellow builders I wasn't really sure where to put this exactly but since my wing is made out of wood I put it here :). I've made quite some progress since the last time I posted here. The ailerons are finished and I'm looking into the control cables and pullies. I am not sure how the...
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    Dormoy bathtub spar lay-out

    Thanks for the advise, last days I made a table to glue my spars on, a 7.5m long closed steel profile as shown in the picture. Since it is too cold in my hangar to glue stuff. There is 400W of heating elements in the table. With 2 thermoswitches keeping the table at 26 degrees. Back to the...
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    Dormoy bathtub spar lay-out

    Thanks for your suggestion. Did you also use a 1:15 slope for the scarf joint? Did you then add plywood on top and bottom as shown in the picture of AC 43.131B
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    Dormoy bathtub spar lay-out

    Thanks for the replies, I'll go for the original design. I am now looking into the splicing of the spar. Via homebuiltairplanes I found AC 43.131B: http://rgl.faa.gov/Regulatory_and_Gu...E?OpenDocument of which a screenshot is shown below. But how do I deal with an I beam with a plywood web...
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