"...[D]ifferent (stronger) front wing..."? No, not just stronger, completely different front wing. Different structure, different airfoil ( <--- RUSS! You can't just use the Q2 airfoil templates!! ),

Thanks, Mike! :) What I didn't mention is that even Cessna got burned by the downward vent and the interconnected tanks. IIRC, they now require vented caps (on top!) on C150's thru C172's (at least).

Bob, We're on the same page; I didn't miss your point. I agree with you 100%. :) Yes, on all counts, including Mike Perry's count that its time to put this puppy away. Would I change a working system?

Ya know, Bob, I thought about that too. Here's the way I see it: the lowest pressure the carb can pull on the fuel line will be at high rpm with the throttle closed. The highest ram pressure will be a

Mike, I'm not advocating this installation at all: I'm trying to get people to see the difficulties of it and to opt for the simpler vent going out the top of the fuselage. We're all so used to seeing

Very funny, Sam! :) If I could catch you in your little hot rod I might introduce myself, but you're so fast that you've always already been there and left! However, I did see Klaus at Oshkosh 2005 ha

Bob, I think you and Mark are teasing me! :) Well, OK, I'll bite. If the vent tube were big enough to be able to pass bubbles through a slug of trapped fuel, I don't think you'd be able to get enough

Jorge, Do not use the fuselage urethane (polyurethane) foam for wings. Also, do not cut Urethane foam with a hot wire and do not expose Urethane foam to heat or open flame. It gives off poisonous gass

Bob, Dang it, I hate it when I mess up like that! Yes, you're right. I was calculating in psf and writing psi. Then I went from there to inches of mercury and really screwed it up. So much for rushed

Sorry, Pat, I should have said 0.026 >PSI< per inch of height. Long-winded explanation follows: 0.026 psi per inch of height. That's pounds per square inch (pressure) per inch of height of the column.

Good points, Lynn Fuel weighs 6 lbs. per gallon. One gallon holds 231 cubic inches. If we stack all those cubic inches atop one another, we get all 231 cubic inches pressing down on one square inch of

Dave Rosengrant, Please email me off-list. Thank you, David J. Gall

Hi guys, I'd like to hear your recommendations for which epoxy system to choose for construction of a new Quickie. Yes, I'm researching the archives and no, I don't want to start a debate. Some experi

Dan, I'm out of town right now. Be back Monday, will correspond then. David J. Gall

Thanks Sebastian. David J. Gall

Hey Ron, I thought you did NOT want a wood prop. The MT prop is wood.... David J. Gall

Anyone here read German? If so, is the word "vertical" in the English translation below a correct interpretation of the meaning of the original German text? 5.3 Bei Propellern ohne Paßzapfen oder Inde

Leon, Why do you always send me scrambling for the books??! :) David J. Gall David; With the offset thrust line (I assume a belt reduction with the 2/1 ratio rather than planetary) is is possable that

Earnest, Could it be a bad translation from the German? I checked the installation instructions on the MT-props website and I could find no reference such as you describe for their fixed-pitch two-bla

Ron, The spreadsheet Leon tried to send you is located here: http://david.gall.com/files/Airplane/Prop-100.xls. It is based on NACA Technical Memorandum 212. It should be sufficient to get you "into t