Combines Math problem for group

i dont think unload auger would even be long enough to dump.18 row at 30inch is 45 feet

I have no idea as to answer, Butt it reminds me of a story. Mother in law goes into store for air condidtioner. Salesman ask how many BTU's do you need. She replied " I don't know nothing about BTU's but all I know is I need enough B.T.U.'s to cool a B.U.T. as big as a T.U.B....."

18 rows at 5mph in 200 bushel corn equals 1.517 bushels per second coming into the hopper. It takes 333.3 seconds to dump 1000 bushels at 3 bushels per second. So, 1.517 x 333.3 equals 505 bushels that were harvested during the unloading, and the remaining 495 bushels came from the tank.

Well, at 5 mph in 200 bushel crop, with 18 rows, assuming 18 rows at 30", which is 45 feet, at 95% efficency you would be covering 26 acres per hour. That would cal. to 5200 bu. per hour, 87 bu. per minute. At an unload rate of 3 bu per second, you are unloading 180 bu per minute. In reality, you are unloading twice as fast as your filling. Having a 680 bu tank, you could unload that in 3.7 minutes. To fill 680 would take 7.8 min. So, if you unload 680 bu in 3.7 min., you would reload 322 bu in that time frame, being 3.7 X 87 bu harvested per minute. With the unloading at top full at 680 bushel, then taking off, unloading on the go, you will unload the 680 and then fill up 322 to unload, which is around 1001-2 bushel for your cart. Does that sound rightIJIJ Or am I out of the park on your questionIJIJ

Well, at 5 mph in 200 bushel crop, with 18 rows, assuming 18 rows at 30", which is 45 feet, at 95% efficency you would be covering 26 acres per hour. That would cal. to 5200 bu. per hour, 87 bu. per minute. At an unload rate of 3 bu per second, you are unloading 180 bu per minute. In reality, you are unloading twice as fast as your filling. Having a 680 bu tank, you could unload that in 3.7 minutes. To fill 680 would take 7.8 min. So, if you unload 680 bu in 3.7 min., you would reload 322 bu in that time frame, being 3.7 X 87 bu harvested per minute. With the unloading at top full at 680 bushel, then taking off, unloading on the go, you will unload the 680 and then fill up 322 to unload, which is around 1001-2 bushel for your cart. Does that sound rightIJIJ Or am I out of the park on your questionIJIJ

Well, at 5 mph in 200 bushel crop, with 18 rows, assuming 18 rows at 30", which is 45 feet, at 95% efficency you would be covering 26 acres per hour. That would cal. to 5200 bu. per hour, 87 bu. per minute. At an unload rate of 3 bu per second, you are unloading 180 bu per minute. In reality, you are unloading twice as fast as your filling. Having a 680 bu tank, you could unload that in 3.7 minutes. To fill 680 would take 7.8 min. So, if you unload 680 bu in 3.7 min., you would reload 322 bu in that time frame, being 3.7 X 87 bu harvested per minute. With the unloading at top full at 680 bushel, then taking off, unloading on the go, you will unload the 680 and then fill up 322 to unload, which is around 1001-2 bushel for your cart. Does that sound rightIJIJ Or am I out of the park on your questionIJIJ

Well, at 5 mph in 200 bushel crop, with 18 rows, assuming 18 rows at 30", which is 45 feet, at 95% efficency you would be covering 26 acres per hour. That would cal. to 5200 bu. per hour, 87 bu. per minute. At an unload rate of 3 bu per second, you are unloading 180 bu per minute. In reality, you are unloading twice as fast as your filling. Having a 680 bu tank, you could unload that in 3.7 minutes. To fill 680 would take 7.8 min. So, if you unload 680 bu in 3.7 min., you would reload 322 bu in that time frame, being 3.7 X 87 bu harvested per minute. With the unloading at top full at 680 bushel, then taking off, unloading on the go, you will unload the 680 and then fill up 322 to unload, which is around 1001-2 bushel for your cart. Does that sound rightIJIJ Or am I out of the park on your questionIJIJ

Had a combine like that around our area 20 years ago. The owner claimed he could not unload on the go. The unloader auger could not keep up with the grain that was coming into the tank! Cheers.

I ran a 475R Cat last year for a couple of days as a demo. It had a 18 row, 20 inch spacing Geringhoff head on it. Running in 200 bu.+ corn 20-22% moisture. 5 mph all day long. Had to run it up to 7mph before it started working it hard and putting grain out the back. I was running the cat and my brother was running my 9750STS with a geringhoff 12 row 20 head. He was always in my way, 3-4 mph, so I told him to park it. Two 750 bu. carts and two semis couldn't keep up to the cat. Boys i'm green, a certified JD tech. Have had nothing but green on this farm for 5 generations. Nothing can compare to the cats. It's like comparing a homeowners model to a industrial model. 2 seperate categories. Nod

All right, I see, thanks!