my silver star 9 cylinders engine

chris74100 Sat Aug 27, 2016 3:11 pm

My new home made engine.

Marleysky Sat Aug 27, 2016 4:45 pm

Now that, is just awesome!! You kept me on the edge of my seat, every time you'd step back into the picture to adjust the engine. It looks like you're going to walk right into the propeller!! Do you have an airframe in mind to build around it?

TLAnderson Sat Aug 27, 2016 6:57 pm

Very impressive. As a machinist, I appreciate what it would take to create something like this.

**RknRusty** Sat Aug 27, 2016 9:40 pm

That's a remarkable piece of work. I subscribed to your YouTube channel so I can see more of what you do. Thanks for coming back to CEF and for sharing your work with us. I am also curious as to what you may use this engine for. Are you a pilot and airplane builder? I recall some of your smaller projects you've showed us in the past, but this is the largest yet that I recall. I'll be re-watching these videos. Once isn't enough.
Rusty

chris74100 Sun Aug 28, 2016 1:40 am

Thanks, but i have no plane for this engine, i'm not a pilot.

getback Sun Aug 28, 2016 8:41 am

Chris that is something to behold you should be proud of your self for such an achievement , Do you know what the BHP is ? and that's one big prop Laughing

The engine sounds very good on video could image being there !! Thank You for sharing . Eric Clapping

chris74100 Sun Aug 28, 2016 8:50 am

Thanks, i dont know the BHP, what it is ?

**RknRusty** Sun Aug 28, 2016 10:54 am

chris74100 wrote:Thanks, I don't know the BHP, what it is ?

It is the actual power at the crankshaft, before any transmission gearbox or other drive train losses. I think it can be measured as how much force it takes to bring it to a dead stop(known as Braking it) while it's running at the peak of its power curve. I'm not sure how the inertia of a necessary flywheel is accounted for.
Rusty

chris74100 Sun Aug 28, 2016 11:10 am

Ok, the BHP is 5 kw (7 cv) at 3800 rpm

**RknRusty** Sun Aug 28, 2016 11:23 am

chris74100 wrote:Ok, the BHP is 5 kw (7 cv) at 3800 rpm

6.7hp@3800 RPM
You could drive a small riding lawnmower with that Lol. Or maybe a super Daquri blender. Or a pretty darn big RC airplane or motor scooter.

**RknRusty** Sun Aug 28, 2016 11:27 am

Not making fun of you, Chris, it's just so fascinating.
Rusty

chris74100 Sun Aug 28, 2016 11:30 am

no problem, very thanks

roddie Sun Aug 28, 2016 11:51 am

Fascinating achievement Chris! I was nervous that the saw-horse was going to tip forward without any visible counterweight on the back! Please be careful!!

GallopingGhostler Sun Aug 28, 2016 6:47 pm

Gee, that sounds so real! We had turbine jet model aircraft that sounded real like jets. That is really a cool sound for a radial, can't get more realism in sound than that! Very Happy

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my silver star 9 cylinders engine

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