Justin Posted March 11, 2023 Share Posted March 11, 2023 Hello, Well, there was little response to my ground attitude question. However, I had modeled the Q2 with standard gear and the canard jigging templates produced an anhedral of 6 degrees. This put the ground attitude at 11 degrees pitch. Somewhere I read it should be between 7.5 and 8 degrees, but almost all photos show that the pilot has a better view on the ground than the standard design really makes. Also, many photos show that people have considerably lowered the tailwheel. In the attached CAD STP file I have reduced the canard anhedral to 5 degrees. I have not lowered the tailwheel yet, but it should lower by 3.5 inches. Using a UL260i engine with a 48 inch diameter propeller, and allowing for 2" of strain in the canard and a loaded tyre radius, these changes still give propeller to ground clearance of 16.6" and a ground pitch angle of 8 degrees. Cheers, Justin STEP-Q2-Assy2023-03-11.zip 2 1 Quote Link to comment Share on other sites More sharing options...
Upali Posted March 13, 2023 Share Posted March 13, 2023 (edited) Looks nice!!! Edited March 13, 2023 by Upali Quote Link to comment Share on other sites More sharing options...
Justin Posted April 7, 2023 Author Share Posted April 7, 2023 I found the reference to the ground attitude in one of the newsletters.... https://www.quickheads.com/index.php?option=com_content&view=article&id=455:quickie-newsletter-25-page-9&catid=13&Itemid=110 Quote Link to comment Share on other sites More sharing options...
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