D-21 Prototype
Printed From: Unofficial Allis
Category: Allis Chalmers
Forum Name: Farm Equipment
Forum Description: everything about Allis-Chalmers farm equipment
URL: https://www.allischalmers.com/forum/forum_posts.asp?TID=177272
Printed Date: 07 Apr 2026 at 12:35pm
Software Version: Web Wiz Forums 11.10 - http://www.webwizforums.com
Topic: D-21 Prototype
Posted By: Dean(IA)
Subject: D-21 Prototype
Date Posted: 04 Jan 2021 at 1:50pm
------------- Dean(IA) |
Replies:
Posted By: Dean(IA)
Date Posted: 04 Jan 2021 at 1:52pm
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The D-21 prototype had D-series styling because of tractor company spies watching the proving grounds. ------------- Dean(IA) |
Posted By: john(MI)
Date Posted: 04 Jan 2021 at 2:05pm
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Even with that tin it's a mean looking machine! I wonder if all of the internals were the same seeing how that's a prototype. ------------- D14, D17, 5020, 612H, CASE 446 |
Posted By: Sugarmaker
Date Posted: 04 Jan 2021 at 2:58pm
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I like that look! Thanks for posting! Regards, Chris ------------- D17 1958 (NFE), WD45 1954 (NFE), WD 1952 (NFE), WD 1950 (WFE), Allis F-40 forklift, Allis CA, Allis D14, Ford Jubilee, Many IH Cub Cadets, 32 Ford Dump, 65 Comet, 66 F100. |
Posted By: steve(ill)
Date Posted: 04 Jan 2021 at 4:04pm
for comparison ------------- Like them all, but love the "B"s. |
Posted By: Ed (Ont)
Date Posted: 04 Jan 2021 at 5:21pm
| Cool picture Dean. But I like the final look even better. That thing was certainly a trend setter back in the day! Looked cool then and looks even cooler now. |
Posted By: Lynn Marshall
Date Posted: 04 Jan 2021 at 9:48pm
| They should have somehow kept the snap on side hood arrangement. |
Posted By: Calvin Schmidt
Date Posted: 05 Jan 2021 at 9:41am
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Dean the picture that you posted is an artist's makeover of the production D21. The real prototype had a Waukesha engine with the exhaust and air cleaner in different location as seen in the video. A real version of the prototype build is in the planning stage ! ------------- Nothing is impossible if it is properly financed |
Posted By: steve(ill)
Date Posted: 05 Jan 2021 at 4:26pm
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The real prototype had a Waukesha engine ..............why ? A real version of the prototype build is in the planning stage .......where ? Calvin... can you elaborate a little more on the topic ? ------------- Like them all, but love the "B"s. |
Posted By: DougG
Date Posted: 05 Jan 2021 at 6:22pm
| Ive heard this too, over on Facebook- dont know the actual truth but would luv to know |
Posted By: Calvin Schmidt
Date Posted: 06 Jan 2021 at 7:38pm
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Doug. It likely went like this. The race was on to have the first tractor over 100 hp on the market. Actually the JD 5010 was first but was a wheatland. D21 with the first row crop tractor over 100 hp (adjustable axle widths). The transmission and rear end were ready for production but the Harvey engine plant was still working on the engine. The 3400 (426) engine was the first direct injection engine designed for ag use. The 301 came later. The final design of the sheet metal and look was still being worked on. They needed to get the transmission and rear end tested NOW ! Down the road they go from Milwaukee and pick up 3 Waukesha 100 hp engines the same as the did for the first 96 B's and 27 WC's. Slap on some sheet metal that looks like the rest of the D series for now. Look at the video and it's easy to see a much different engine. Some of this came from guys who used to work at the test farm. ------------- Nothing is impossible if it is properly financed |
Posted By: shameless dude
Date Posted: 07 Jan 2021 at 12:39am
| glad they went with the look they did! |
Posted By: DrAllis
Date Posted: 07 Jan 2021 at 6:37am
| It's pretty clear to me the team that designed the "look" and operators platform for the D-21 weren't involved much with the mighty One-Ninety, which was also in the designing stages at that time. The rear mounted fuel tank, seat track and suspension and suspended clutch/brake pedals were shared, but not much else. No "console control" for sure. Almost hard to believe the two models were even related. Maybe distant cousins ?? |
Posted By: Calvin Schmidt
Date Posted: 07 Jan 2021 at 8:01am
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Interestingly the casting supporting the clutch and brake pedals is the same for the OneNinety, 210, and 220. ------------- Nothing is impossible if it is properly financed |
Posted By: Fred in Pa
Date Posted: 07 Jan 2021 at 8:33am
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Are there any pictures of the actual prototype . ------------- He who dies with the most toys is, nonetheless ,still dead. If all else fails ,Read all that is PRINTED. |
Posted By: Joe(OH)
Date Posted: 07 Jan 2021 at 9:22am
------------- Life is simpler when you plow around the stump. |
Posted By: Fred in Pa
Date Posted: 07 Jan 2021 at 12:21pm
------------- He who dies with the most toys is, nonetheless ,still dead. If all else fails ,Read all that is PRINTED. |