PeteK

Lycoming running on 3 cylinders sure do shake, bad.

 

Cruising along at 5500 ft, Pop, mild vibration, then BANG.

 

Violent shaking, Pulled the power back to a very rough idle. Declared an emergency with Bay Approach (San Francisco), Advised them I had enough altitude to dead stick to Reid Hillview Airport (about 4 miles away). Turned the fuel valve OFF.

 

High overhead approach for a high key entry, made it at about 2,500 ft. Entered low key right on the money at 1,000 ft, Continued the turn to base, check gear down, around to final. Using the speed brake for energy. Landed a little long. Had enough energy on the roll out to clear the runway.

 

Stopped the plane, breathed again, Then I started shaking more violently then the plane.

 

Training pays off

 

POSTMORTEM - Big chunk missing out of the cylinder. Evidently when the valve broke, it rattled around inside the cylinder,for a couple milliseconds, punched a hole in the top of the cylinder, then went out through the exhaust pipe. The timing was absolutely perfect, as the prop blade and the valve collided. The valve won, taking off the outer 8 inches of the blade.

 

Damn that was a good prop.

 

Waiter

POS Lycoming......shoulda had a rotary <ducking>

My understanding is that there some laminated wood props that are "semi-constant speed". In other words, they flex to kinda sorta maintain a narrow speed range. Maybe this is something to look at?

Never mind - I see that's how most people are doing it.

I have been trying to figure out the placement of the baggage pods and how are they fastened to the wing? Would anyone like to share how they designed their pods?

Erick

You could just make a j-hook that hooked over the leading edge, and a hard point mounted drilled and tapped piece of stock. When you bolted the pod to the hard point, the j-hook would hold the front up.

If you want a pic, I can whip up something and post it.

Agreed. I am interested to see how the mounting and connection of fuel lines is handled. Anyone ever have a look at Lelvill's Long EZ for this? Because of the possibility of screwups with the fuel system I think the plumbing of this system needs to be well though out (duh)

Do you plan on directly feeding off these auxiliary tanks, or will you pump fuel from them into your main tanks?

And then there is this article......

http://www.avweb.com/news/columns/182076-1.html

Can anyone elaborate on the legal issues that were faced by AeroCad? I have contacted Mr. Russell vis email, as myself and a potential partner are interested in the purchase of the tooling.

Thanks,

Pete

Hi,

Is this list active? I tried to email it and got a permanent failure. I am Fort Collins and would like to get together with some other composite/canard builders. Thanks.