Search:

That I expect is my error, very busy day work out an electronic problem, I am toast.

I expect those are paper hours.

The big Moki is about 50ish HP each, probably a bit light on power, they sound great at low power.

That plane might be right with four Moki 400 radials on it. Sure sound the part at least.

In flight? I have not heard that to be common. I can see issues on the ground, clearly I have not kept up to date with skis breaking planes apart in the air.
I recognize issues with rigging failures...

I find it a bit frightening when a preliminary report concentrates on the ski's while the outer wing is the first part down and the inner wing is with the empennage.
How about that right lift strut...

Well, they are now after a major redesign of the aft section of the fuselage. The fuselage had been through a structural analysis for the 12G design loads. But soon it was found the fuselage forward...

Parallel tubes in Delrin is a superb way to do it. The Delrin can be drilled although an end mill or reamer will provide a nicer final cut.
You might consider split blocks for the Delrin. This...

One source to look at is Mcmaster All sorts of wall thicknesses, diameters and material. I like to plan on a 1/16 minimum wall bush so call it about 1/8 between the inner OD and outer ID. You can run...

I like to use bushings, When I make that type of structure I utilize tubes with enough difference in diameter that I can install Delrin or HDPE bushings for the inner tube to ride in.

Minus 21 and still dropping at day break here in the hills of VT.

Those were very skilled trucks.

That family of engines as well as the new Suzuki outboards are about the best engineered out there that are happy with continued high power use.

I bet you weren't

Mid 80's I was southbound over the Conn river between Westover AFB and Westfield airport, both are military bases. I was in my C150 about 2000 or 2500' in contact with Westfield. It was common for me...

That looks useful, looks to roll off it's cutting edge such that it does not score the bore.

Even anodized the mandrel, cool. I tend to just make the tool, used it and set it aside.

And how many months have you patiently waited for crank replacements and other parts.

And the market is big enough for development and research. Someday we can have engines that do not get less reliable with every engineering change.

That would be sweet. We would truly need allot of reform of the certification system to make it happen.

A second part to the above, to utilize current engines. Unleaded fuel utilizes thinner piston rings that what the current air engines run. The auto industry made this change about 1977. The valve...

The main thing that needs to be done is to modernize the combustion chamber design. The frying pan design still dates back to the '30s while technology has move far beyond that. Even the angle valve...

Oh for a camera to get the expressions of the flight crew.

The 208