Re: [Harp-L] Re: new harmonica trio idea

[Joe and Cass Leone <leone@xxxxxxxx>]

On Sep 23, 2008, at 12:02 AM, Maka McMahon wrote:

> When I wore a younger man's clothes, we used to be able to  
> determine the number of cylinders, whether a 2- or 4- stroke, the  
> rpm and a whole bunch of characteristics of the engine with just  
> good ears and a stop watch.

The men seem to be speaking Swedish or Norwegian (maybe Finn). It  
would be hard to turn a diesel that slow unless it was a 2 stroke.  
So, since logic is my God, I suspect it is a Saab single cyllinder 2  
stroke of around 925ccs (abt 56.5 cubic inches), Thus yielding abt  
18.5 hp at 1800 rpm with a rev limit of 2700. These engines were very  
popular for fishing craft. Very similar to the Lunenburg 'make &  
break' engines of Nova Scotia.
> We could also determine the number of propellers, the number of  
> blades on each prop and a whole bunch of interesting aspects of  
> support equipment (generators, pumps etc) acoustically (and  
> passively), from a long distance.

Yes, That would be impressive. I had a Cri-Cri (French ultra lite)  
with 2 McCullough chain saw engines of 9hp each. Although you  
shouldn't need a pilots lic for an ultra lite, I got into trouble  
because not only was the speed 127 mph (TWICE the legal limit), but I  
found out to my dismay that TWO engines automatically requires a  
license. Sooooo, I went and got a license. You would have liked the  
sound of those 2 buzz saws.
> Sound propagation in water gives a whole bunch of tools for hunting  
> submarines, and our main targets were diesel electrics.  Nukes were  
> too easy - we left most of those for the Yanks!
>
> However, my dodgy computer speakers and youtube sound quality make  
> it tricky for these old ears to figure this one out.  I think its  
> one engine - just a lot of rattle in the valves and peripherals.   
> And its probably easier to get into most venues than all the crap  
> drummers bring with them!

Two possibilities. #1, given the ancient age of the tractor, it may  
have EXTERNAL valve springs. #2, given the mileage on the tractor,  
the power takeoff may have a worn bearing.

smo-joe
> Cheers
>
> Maka
>
>
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