max speed specs

smoknbs · Feb 10, 2010

I have a book for the IH tractors that give mph in each gear .Has any one compiled a list for all tractors as to the speed in high gear? need this info for the Mackinac Bridge crossing . ALL tractors must be able to mantain 10mph , we need in writing so the ones that say " mine goes that fast " can be told yes or no . the Bridge Authority sets the rules , this list needs to be specific , Make, Model, top speed in high gear thanks guys

Anonymous-0 · Feb 10, 2010

That would be an exhaustive list! Most tractors since the 50's will go 10 MPH. Dave

PeterE · Feb 10, 2010

Many are on TractorData in the transmissions tab. If a particular model you need doesn't have its speeds, email me, and I might be able to find it.

JDemaris · Feb 10, 2010

Red Tractor Field Books give all those specs for all US tractors. I have them all.

For example, 1948 edition shows recommended high speeds for IH:

Cub - 6 1/8 MPH
Super A - 10 MPH
Super AV - 13 1/4 MPH
C = 10 1/4 MPH
H - 15 5/8 MPH
HV - 15 1/4 MPH
M - 16 1/4 MPH
MD - 16 1/4 MPH
MV - 16 MPH
MDV - 16 MPH
W4 - 14 5/8 MPH
W5 - 15 7/8 MPH
WD6 - 15 7/8 MPH

By the way, the TD24 goes 7.8 MPH. Not quite fast enough, but probably wouldn't want it on the Big Mac Bridge anyway.

JDemaris · Feb 10, 2010

If you need photo copies, email me direct and I'll scan and send. Make sure you tell me exacty which tractors and year ranges.

smoknbs · Feb 10, 2010

1970 and earlier and yes they realize most can go 10 mph ,think its more the 30-40-and early 50s tractors

Bill(Wis) · Feb 10, 2010

I know of no such specific list but that doesn't mean it doesn't exist. A perusal of CH Wendel's book of Nebraska test reveals scads of antique tractors that don't even come close. Example:
1. Fordson All-Around on rubber 5.13
2. 4 speed John Deere A 5.25
3. John Deere L 6.0
4. Farmall Cub 6.4
5. Allis RC 7.5
6. Ford 9N (w/o Sherman step-up) 7.48
7. Allis B 7.75
8. Case VAC 8.4
9. Allis WC 9.0
10.Allis WD 9.75 (close)
Please note that these are advertised speeds at the rated RPM. By increasing RPM, tire size or the addition of after market higher gears, the speed may be increased. The best sources that I know of would be the Nebraska test publications and old mfg literature.

JDemaris · Feb 10, 2010

Best source is the tractor spec books that were published every year from the 1930s to the 1960s. Red Tractor Book and Implement & Tractor Red Book. They give all the highway speeds for all the tractors.

Wayne in MN · Feb 10, 2010

The published info on speeds presumes the engine is running at it's rated high idle r.p.m. and has the specified tire size.
Maybe you should get a radar gun or GPS and check each unit before taking off over the bridge. Better yet have each driver be sure to check their machine's speed before trailering to the gathering site.

Bill(Wis) · Feb 10, 2010

Thanks. I will defer to others the max speeds of tractors. I do not intend to subscribe to any of those publications.I don't have that kind of time on my hands.

JDemaris · Feb 10, 2010

I don't know how anybody can "subscribe" to magazines that were published in the 1930s, 40s, and 50s. They are old books now and have been out of print for a long, long time. They are often the source for many modern publications, and many reference them in libraries and archives. Or, some people buy them when found cheap, like I've been doing for 40 years.

max speed specs

smoknbs

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Anonymous-0

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PeterE

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JDemaris

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smoknbs

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Bill(Wis)

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JDemaris

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Wayne in MN

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