Allen Millyard's 5000cc V-twin

**jimfols** · Oct 22, 2020, 06:33 PM

The Flying Millyard is 5000cc of V-twin - two cylinders of a radial Pratt and Whitney aero engine - mounted at 60 degrees to home-made crankcases, nestling inside a chassis completely hand-fabricated at home by Allen, in his ever-so-ordinary single garage.

Allen Millyard's 5000cc V-twin-flying-millyard-02-changed.jpg

Allen Millyard's 5000cc V-twin-flying-millyard-09-changed.jpg

**Frank S** · Oct 22, 2020, 10:03 PM

I'd hate to have to try an kick start that thing

**olderdan** · Oct 23, 2020, 09:37 AM

It is well worth looking up Allen Millyards YouTube channels to see what this amazing chap can achieve with as you say a very basic workshop. He is a accomplished user of hand tools also and his builds always look professional.

**sossol** · Oct 23, 2020, 08:23 PM

Originally Posted by olderdan

It is well worth looking up Allen Millyards YouTube channels to see what this amazing chap can achieve with as you say a very basic workshop. He is a accomplished user of hand tools also and his builds always look professional.

He presents his projects like one would present a cigar box, and he always seems genuinely surprised that his mods work. It's as if he were an ordinary bloke instead of the genius that he really is.

Neil

**jimfols** · Oct 24, 2020, 10:55 PM

Originally Posted by Frank S

I'd hate to have to try an kick start that thing

**Frank S** · Oct 25, 2020, 08:36 AM

seeing the guy start it makes it a proper motorcycle for me, but I'd still hate to have to kick start it

**DIYSwede** · Sep 22, 2021, 01:58 PM

Allen explains how it all started: how he became a self-taught motor cycle engine redesigner/ rebuilder.
Reveals his design considerations on bike frames around his one-off DIY engines, carburetors and transmissions,
and why he prefers to "make do" with his small, rudimentary workshop and few hand tools.
Engine builds from the World's smallest V-twin via the biggest 5 L V-twin (2 cylinders from a C-47 Pratt & Whitney) to his Dodge Viper 8 L V10.
Shows us some of his different DIY bike builds, how he keeps his motivation up and why none of his projects have failed or have been given up.

Sensitive Person's Caution: A 50 minute household chat (with appropriate sound quality) in British English...

**sossol** · Sep 22, 2021, 06:24 PM

He also designed and built a brilliant adaptive downhill bike suspension, and the bikes to go with them. An interviewer asked whether he has plans to patent and license the tech, and his reply was no, and that anyone is welcome to put it into mass production without paying him because he based his design off an existing design, so while his is improved, it's not entirely his.

Neil