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Ian Ashdown

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Ian Ashdown last won the day on August 17 2022

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  • Real Name (Public)
    Ian Ashdown
  • Location (Public)
    San Clemente, CA

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  • Plane Type
    Quickie (Q1/Q2/Q200/Tri-Q)

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  1. I work in aerospace engineering and our teams are spread worldwide. Distance is no longer an impediment. Time zones are a bit, but it’s possible to work around them. The key is having clear targets, a good plan and good management. I ran my own aerospace composites company for 15+ years so fully understand the processes. The Rutan method of shaping foam and then laying up over it is very time consuming and can give inconsistent results. A well designed set of tooling can make one of this type of aircraft almost snap together and somewhat self fixturing. A consistent, high quality product can be achieved for very little additional unit cost, but with more consistency any potentially higher quality, all in much less time. The mind numbing monotony of sanding and filling is reduced to almost zero! If there is no interest, that’s fine. I’m not planning to build an EZ, but would be happy to help others. Ian SoCal
  2. This discussion makes me wonder if we properly organized all the talent and resources that regularly contribute to this forum, why couldn’t we have one really well researched, designed and developed Open-Source-EZ project. Each person involved could contribute their particular skills and experience. I feel a modernization of the LongEZ/Berkut themed design, possible with all of todays CFD tools, good structural analysis, then a collectively owned set of composite tooling, it should be possible to create a near Quick-Build set of parts with a very high standard. Is potential liability the killer of such a project? Ian SoCal
  3. I was told to got the ‘Store’ and the ‘Manage Purchases’. Your purchases should be available there to download. ian
  4. https://www.ebay.com/itm/224821824898?_trkparms=amclksrc%3DITM%26aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160908105057%26meid%3Db21b4ba7f33f47098bc110003cde3812%26pid%3D100675%26rk%3D4%26rkt%3D15%26sd%3D175143461214%26itm%3D224821824898%26pmt%3D0%26noa%3D1%26pg%3D2380057&_trksid=p2380057.c100675.m4236&_trkparms=pageci%3A8db062b0-87b5-11ec-a9ed-06c7776a2dbe|parentrq%3Ad1cde10117e0ab8d4d3fa61bfff462b2|iid%3A1 Not mine and have no connection to the seller. Ian SoCal
  5. Thank you for the info. I’ve been collecting data from wherever I can to build as broad a basis for me decisions etc. I’m planning on using the Rotax 912 engine which is about 40lbs lighter than the O-200. I’m also planning to either not have the header tank or use it as a gravity feed Aux tank to the main. Either way that another 50lb . Both are forward of the CofG. My goal with the spreadsheet is just to be able to ‘what if’ various scenarios of moving things around, but having real accurate numbers to start with always helps. Ian
  6. Hi, I wonder if anyone has the weights at the wheels, that they are willing to share, of a Q200 in the flying orientation (i.e. with the tailwheel elevated)? I’d also need to know which engine, fuel load, pilot & passenger or none, etc I’m just trying to build a spreadsheet to investigate the effect on C of G of moving certain items in the aircraft. Thanks, Ian
  7. Could you share some details of the Dragonfly? Thank you, Ian
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