Matthew, Thank you for your significant contributions to this discussion, they are much appreciated! David J. Gall

Yes but a lot more than that. This may be common knowledge for you but I’ll explain in some detail since I think most people aren’t fully aware. Taking a step back, part 23 and part 25 both say

Hi Matthew, When you state the that the elevator control linkage has single points of failure, are you referring to the fact that there are independent (left-right) control arms with separate push

There are many good reasons we chose not to fly this plane. Thank you Matt, CharlieN

I would be extraordinarily careful with that setup and my professional recommendation would be don’t fly that. The problem is that unless you have fully evaluated the trim loads incurred during the

Yes, this plane could be made to spin, but it has 5 different combination s of controls and power to get out of a stall. This is a bit more than the average plane. The independent control of fore and

Way back in the mid '80s when I was building my Q1 with the first customer LS1 airfoil. I built the sparrow Strainers on hinges and drove then with model servos. Intention was for this to be the trim

From a standpoint of safety the "no stall/spin" part is a great asset. If however you hold back on the stick during the porpoise it quickly get accelerated greatly. The oscillation becomes bigger

Hello, This email message is a notification to let you know that the following files have been uploaded to the Files area of the main@Q-List.groups.io group. /lcpresentation.pdf Uploaded By:larry

This would be an appropriate topic for the Q-Performance list, which is right here: https://q-list.groups.io/g/Q-Performance/

For anyone who wishes to see how a Q2 hull can be turned into a light sport safety plane, please contact me directly. The information is placed in a fairly long PDF telling how and why it works. This

Not sure they would work on tape very well. Shoulda coulda woulda. I already ordered the tape on line. Thanks Michael! Bruce

If you're in a hurry, Walmart sells turbulator tape scissors in the craft aisle; seems they think that they're "pinking shears" for some reason

I changed my mind on applying the Vortex Generators for now in leu of trying the zig zag turbulator tape as Scott Swing offered. I like to approach things slowly and if I can get the zig zag to work

This reminds me of something Scott Swing and I conversed about. Scott said someone flew the LS1 without a sparrow strainer because the absence of it created less drag for a race he had entered. Huge

Jay, The hinge pin on the Roncz canard elevator is not concentric with the elevator torque tube. It is approximately 0.1” from the inner surface of the torque tube at the extreme bottom of the

Jay, BINGO! Again, you don’t want the float angle for cruise, you want the float angle for LOW cruise/max range or even a little slower. Remember, the worst-case scenario is that you are going

From that most reliable of sources, “the internet” 😊 http://www.angelfire.com/on/dragonflyaircraft/airfoils.html Look about midway down the page. I think the elevator hinge

Thanks for the clarification, David. Starting to sound kind of like what I did in my model. I modified the elevator portion of the LS-1 to neutralize the moment on the elevator at zero AOA (plans) .

Jay, P.S. Where’d you find a picture of a Roncz R1145MS with a powered trim tab? THAT was never part of the Roncz canard plans. That depiction of the Roncz canard is actually incorrect. The