New pics on Eggenfellner site

cjensen · #1 03-09-2007, 09:29 PM

Jan has published the first pictures of the new Generation 3 reduction drive, and their engine test trailer.

Generation 2 on the left, 3 on the right...

Test trailer...

cjensen · #2 03-09-2007, 09:30 PM

Whoa!!

Those pics are HUGE!!! Sorry about that!

gmcjetpilot · #3 03-10-2007, 05:58 AM

What is the long drive shaft, shroud and engine mount for?

cjensen · #4 03-10-2007, 08:21 AM

Couldn't tell ya. I'm just passin' along some photos. My guess is it's just for testing, but it's just a guess.

ccrawford · #5 03-10-2007, 09:10 AM

It's probably so they can get to the engine without the prop being a danger.

On an RV installation the prop is installed right where the long shaft starts from the engine.

rv6ejguy · #6 03-10-2007, 09:38 AM

I suspect the shroud is a safety thing. Always a concern when running engines on a test stand with props spinning. Curious onlookers who are non-pilots... well nobody wants to clean up that sort of mess. I often have a second person present to act as a safety officer when doing test runs.

Ditto on the extension shaft. This would allow adjustments and checks while the engine is running with much less danger to the tech.

Nice rig. Looks like they will test each unit before shipment. Excellent idea.

Dave Cole · #7 03-10-2007, 11:49 AM

My take on auto conversion for aircraft propulsion is that, despite the durability of any particular auto engine, the critical part of a conversion package is the PSRU and the issues of weight and durability they introduce.

Does the introduction of a thrid genreration Eggenfellner PSRU substantiate that view, or is there something else at work here?

cjensen · #8 03-10-2007, 01:15 PM

As I understand it, the changes that have been made were to accomdate the H6 engine when they introduced it to get to the powerband they wanted at 200hp. I think Gen 1 was 1.82, not sure about Gen 2, and Gen 3 is 2.02. There was a belt drive in there that never made it to production that I think was like 2.20 or something like that. Someone that has an Egg engine can elaborate a bit more, but that seems to be the jist of it.

Geico266 · #9 03-10-2007, 02:34 PM

You guys have it all wrong. This is the new rear engine model the Eggenfellner guys have come up with.

Those Subbie guys are always thinking....... not real clear thinking, but always thinking.

c177tx · #10 03-10-2007, 04:55 PM

maybe just maybe they are testing this set up for a scale version of the p39-air cobra..made from a modified 8 fuselage. That would be cool..