Free 173 Best Homemade Tools eBook:  
Remove advertisements
Results 1 to 8 of 8

Thread: 1906 Adams-Farwell 5-cylinder rotary engine

  1. #1
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    14,293
    Thanks
    2,944
    Thanked 8,053 Times in 2,742 Posts

    1906 Adams-Farwell 5-cylinder rotary engine

    This video is from the 2011 Pebble Beach Concours D'Elegance. It's the only remaining Adams-Farwell car, a 6A Convertible Roundabout from 1906.

    The car is powered by an extremely unusual rotary engine in which the crank is mounted to the frame, and the engine crankcase spins around it. The spinning crankcase and cylinders act as their own flywheel, and the air-cooled design meant that a radiator is not necessary. See it run at 3:55.


  2. The Following 2 Users Say Thank You to Jon For This Useful Post:

    Frank S (09-21-2018), KustomsbyKent (09-20-2018)

  3. #2
    mklotz mklotz's Avatar
    Join Date
    Aug 2015
    Location
    LA, CA, USA
    Posts
    1,689
    Thanks
    117
    Thanked 3,199 Times in 1,101 Posts

    mklotz's Tools
    Let's see...huge gyroscopic moment with spin axis necessarily vertical. Roads back in those days were primitive. Every time the car lurches over a bump that lifts one side of the car the resultant torque on the gyro-motor wants to steer the car in a different direction.

    It's fortunate that the design disappeared before higher speeds and banked turns made their appearance.
    Last edited by mklotz; 10-01-2016 at 10:48 AM.
    ---
    Regards, Marv


    Home Shop Freeware
    http://www.myvirtualnetwork.com/mklotz

  4. The Following User Says Thank You to mklotz For This Useful Post:

    Toolmaker51 (09-20-2018)

  5. #3
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    14,293
    Thanks
    2,944
    Thanked 8,053 Times in 2,742 Posts
    Even just sitting there stationary and running, it doubles as an arm shortener. As if it wasn't dangerous enough, the inventor later got into early experimental helicopters. One of his rotary engines is in the Early Flight exhibition at the National Air and Space Museum: https://airandspace.si.edu/collectio...otary-5-engine .

  6. The Following User Says Thank You to Jon For This Useful Post:

    PJs (09-23-2018)

  7. #4

    Join Date
    Jun 2016
    Posts
    11
    Thanks
    1
    Thanked 5 Times in 5 Posts
    A design prominent in many WWI aircraft. Also made for asymmetrical turning speeds.

    Ron

  8. #5
    Jon
    Jon is online now Jon has agreed the Seller's Terms of Service
    Administrator Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    14,293
    Thanks
    2,944
    Thanked 8,053 Times in 2,742 Posts
    1939 Plymouth truck with a radial engine.


  9. The Following 5 Users Say Thank You to Jon For This Useful Post:

    bruce.desertrat (09-20-2018), PJs (09-23-2018), rlm98253 (09-20-2018), Seedtick (09-20-2018), Toolmaker51 (09-20-2018)

  10. #6
    bruce.desertrat's Avatar
    Join Date
    Nov 2017
    Posts
    155
    Thanks
    83
    Thanked 167 Times in 79 Posts

    bruce.desertrat's Tools
    That's an awesome rod. There were some retty hot radials built during WWII, Rare Bear still holds a world record they set in 1989 with a Wright radial. https://en.wikipedia.org/wiki/Rare_Bear

    That truck looks even better with it's full metal on https://www.motortrend.com/news/airp...ically-radial/

  11. The Following 2 Users Say Thank You to bruce.desertrat For This Useful Post:

    Jon (09-21-2018), PJs (09-23-2018)

  12. #7

    Join Date
    Aug 2016
    Posts
    246
    Thanks
    0
    Thanked 79 Times in 69 Posts

    wizard69's Tools
    Cool "upgrade". I'd put a propeller on the thing Just because but cool none the less.

    This makes me wonder about oil usage in such an engine. Or more specifically how do they keep the oil out of the lower cylinders. This one mystery about radials I never fully understood.

  13. #8

    Join Date
    Mar 2018
    Posts
    5
    Thanks
    1
    Thanked 1 Time in 1 Post
    Quote Originally Posted by wizard69 View Post
    Cool "upgrade". I'd put a propeller on the thing Just because but cool none the less.

    This makes me wonder about oil usage in such an engine. Or more specifically how do they keep the oil out of the lower cylinders. This one mystery about radials I never fully understood.
    You are right-oil did collect in the lower cylinders. The solution was a process termed “Turning out” the engine, where, with the ignition off, workers would rotate the prop by hand for three or four rotations. This would slowly force the oil out to the exhaust.

    As an anecdotal aside, I attended the 2001 Mt. Comfort air show. They had a B29 Superfortress bomber (four radial engines, and the backbone of the air effort in WWII) there. Near the end of the day, as crews were preparing to depart, they asked for volunteers to turn out the engines. I did that alongside my dad, who spent the war working on the B29s at an English airfield. A golden moment.


    Post your reply!
    Join 33,912 of us and get our 173 Must Read Homemade Tools eBook free.



    173 Must Read Homemade Tools

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •