You are right Ed, if we want to be accurate and have comparable measures, we must know / establish a measuring method. Well, the one you propose is a valid one. Lets see if someone could send the value and method used to obtain the distance "d". Next time I visit the plane, I will try to measure "d" on the 415-CD using the simplest but accurate method I could set up at that moment. Perhaps using a string, level, tape measure and protractor "d" can be calculated using trigonometric without using a ground reference ....
Thanks again Ed ! Regards Daniel Arditi ________________________________ From: Ed Burkhead <[email protected]> To: Daniel Arditi <[email protected]>; [email protected] Sent: Tuesday, April 28, 2009 1:35:27 PM Subject: RE: [ercoupe-tech] Distance between header tank output and carburetor Daniel asked again: > I still wonder if anyone could tell me which distance should > be between the header tank output and the carburetor input, > for a 415-CD with C-90 Engine and Marvel-Schebler carb. I’ve thought of a way to measure this. Daniel, you can measure it directly on your friend’s Ercoupe. As he has a C-90, it could also be measured on any Forney or Alon. For this to be accurate, the main landing gear must have had proper maintenance so the window sills are level (fore and aft) as the plane sits on the ground. On a very flat tarmac, I’d measure from the ground to the top of the windshield bow. Then, I’d measure from the top of the windshield bow down to the cockpit floor. Finally, I’d measure from the cockpit floor up to the bottom of the header tank. In the engine compartment, I’d measure from the distance from the tarmac up to the carburetor inlet. Daniel, we need to know which kind of nose gear you have – the single fork or double fork gear. Ed
