How is snow throw distance calculated, estimated or measured? - Snowblower Forum : Snow Blower Forums
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post #1 of 21 Old 12-12-2014, 08:06 PM Thread Starter
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How is snow throw distance calculated, estimated or measured?

Been thinking about this of late.

How is the "throwing distance" of snowblowers calculated or measured?

If calculated - what are the factors taken into consideration? HP of engine, chute angle, auger speed?

If measured - is there a "standard" type of snow, weight/volume/height that is used? Is the chute always pointed forward or to the side?

To be honest with you, I think the majority of snowblowers on the market all throw snow a reasonable distance that makes this specificiation less than useful in real life. Could be wrong though.

I'd love to find out if the "throwing distance" is based on any objective measure or just marketing hyperbole.
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post #2 of 21 Old 12-12-2014, 08:25 PM
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To some throwing distance is important, but I agree, it's mainly just marketing. One can easily figure out impeller tip speed by making a few measurements and knowing the engine RPM to compute the speed at which the snow is actually coming off the impeller at. You can then use this and physics to calculate the theoretical distance it would be thrown when the chute is at a 45 angle (the angle needed to achieve maximum throwing distance). How that compares to real world....who knows.

I think I'm in the real minority, but what's important to me is the rate of which snow is removed. This allows me to normally walk behind the blower and not at a snails pace because the blower isn't capable of discharging the snow at a rate needed for a normal walk.

Last edited by JRHAWK9; 12-12-2014 at 08:27 PM.
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post #3 of 21 Old 12-12-2014, 08:42 PM
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Most people will measure with a laser compensated for temperature, elevation and magnetic disturbance and add 5 to 50 feet depending on how proud they are of the machine, new or used.

Sorry, I just had to. Like Jrhawk said " How that compares to real world....who knows."
You can physically measure how far it tosses snow but each snowfall is different in density and depth so it's something that isn't an exact science.

The best way would be to see what a number of owners say they are getting. I'm also a big fan of volume over distance but usually if you have good volume you do get good distance.
Then there is always the blower that's a dog because of it's impeller to wall clearance and with $10-15 in rubber belt and bolts you turn it into a distance champ.

See "impeller mod"

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Make sure the windows are up before the snow plow goes by !!

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Last edited by Kiss4aFrog; 12-12-2014 at 08:47 PM.
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post #4 of 21 Old 12-12-2014, 09:34 PM
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Yup...I like that explanation..!!

Here's a video to watch...its not designed as a snowblower, but snow is sure being blown...
Spectacular footage Train plowing through deep snow Arthurs Pass - Safeshare.TV
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post #5 of 21 Old 12-12-2014, 09:43 PM
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question for kissafrog...notice you own a Jacob 626...blown engine...I just bought one...Were you the operator when it blew? Was it governor problem...? My 7hp Tec seems to show a weak tension on Gov..I hope it will control OK...but need snow to check it...it will rev too high when throttle is up...its old..wondering if this is sign..
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post #6 of 21 Old 12-12-2014, 10:06 PM
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I wasn't operating it. It was a $15 purchase with the head loose and a tale of no compression. I'm not sure what might be wrong with the engine I'm still trying to take the blower apart and adjust, repair and replace the stuff wrong with the machine. It has some broken welds too. It had the typical worn out drive axle bushings that damaged the chain and a worn out jackshaft and the gears bushings. It had even been flipped once so it was the second time the gear cluster chewed into the shaft. I replaced it with a home made unit. Hope to pull the engine off this spring and go through it or replace it. The side of the block is still good and so is the connecting rod !!
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post #7 of 21 Old 12-12-2014, 10:25 PM
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It's the best performance someone in marketing observed or heard of. It may even include a favorable breeze! That's what there is always a YMMV disclaimer.

When I am estimating a working machine I just look for where the stuff is hitting , or actually not hitting virgin snow pack. The short end of the plume is what matters.
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post #8 of 21 Old 12-12-2014, 10:51 PM
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To me distance is BS. It is what make you happy. Anything beats shoveling snow. Thats just me. To each their own.
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post #9 of 21 Old 12-13-2014, 04:33 PM
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Me I just blow it to where it came from and the clouds let fall wherever. Just hope it doesn't fall back in my driveway.


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post #10 of 21 Old 12-13-2014, 04:45 PM
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Quote:
Originally Posted by miwo76 View Post
Been thinking about this of late.

How is the "throwing distance" of snowblowers calculated or measured?

If calculated - what are the factors taken into consideration? HP of engine, chute angle, auger speed?

If measured - is there a "standard" type of snow, weight/volume/height that is used? Is the chute always pointed forward or to the side?

To be honest with you, I think the majority of snowblowers on the market all throw snow a reasonable distance that makes this specificiation less than useful in real life. Could be wrong though.

I'd love to find out if the "throwing distance" is based on any objective measure or just marketing hyperbole.


no brainer...make a pass and see where the snow lands at is closest point, with the chute cranked all the way to one side for maximum distance, and measure it with a tape measure.




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