Herb Poitz : You may not know his name, but he changed the way we fly

Posted on January 11th, 2008 by

I have been asked many times at air shows if I was the original developer of Aeroshell W oils. Continue Reading →

Own a certified airplane? Just say no to ethanol

Posted on December 21st, 2007 by

In my Nov. 23 column, “”What effect does ethanol have on airplanes?”", I tried to answer the question of what to do if you end up accidentally getting some auto gas that contains ethanol in your airplane. I had intended... Continue Reading →

Oregon legislature compromises GA safety with new ethanol law

Posted on December 7th, 2007 by

I believe it was Mark Twain who once said that nothing is safe when the legislature is in session. Continue Reading →

What effect does ethanol have on airplanes?

Posted on November 23rd, 2007 by

“”What is the effect of having mixed 10% ethanol with avgas and/or ethanol-free mogas on two or three occasions?”" asks reader Ken Rice. “”The place where I bought ethanol-free mogas lied to us about the change to 10% ethanol. I... Continue Reading →

Understanding octane

Posted on November 9th, 2007 by

The most interesting and least understood part of a fuel’s properties is the octane quality or number. Continue Reading →

The difference between 100/130 and 100LL

Posted on October 19th, 2007 by

Some readers, including Noel Dennis, were confused when I made the statement in a recent column that 100LL is actually 100/130 (The definition of insanity: Finding a solution for 100LL requires looking at the facts, Sept. 7 issue). Continue Reading →

Stump the expert

Posted on October 5th, 2007 by

Own an antique engine? Continue Reading →

There are no simple answers to complex problems: And no magic pill for unleaded avgas

Posted on September 21st, 2007 by

In my last column I berated the author of a letter to the editor about a simple solution to the unleaded fuel crisis (The definition of insanity, Sept. 7 issue). Continue Reading →

The definition of insanity: Finding a solution for 100LL requires looking at the facts

Posted on September 7th, 2007 by

In the Aug. 10 issue of GANews there was a letter to the editor in response to my article on unleaded avgas and the insanity of developing a marketable product (Unleaded avgas: You’d have to be insane to try to... Continue Reading →

Can I use an SAE 60 oil?

Posted on August 24th, 2007 by

Dan Mooney, who has several round engine aircraft and a Skybolt with a Lycoming IO360A1B engine, has a question: Can he use oil from a drum of Phillips 25W-60 that he has for his round engines in his Skybolt? He... Continue Reading →