Author Topic: Yamaha Based 14 Cylinder Radial Engine (Read 6342 times)

Penderic · « **on:** September 13, 2016, 11:40:20 PM »

Yamaha Based 14 Cylinder Radial Engine

http://thekneeslider.com/exclusive-first-look-at-russell-suttons-14-cylinder-radial-engine-project/

FYI

Hymes Inc. · « **Reply #1 on:** September 14, 2016, 11:31:13 AM »

Look at those jugs!

ITSec · « **Reply #2 on:** September 14, 2016, 02:22:17 PM »

My first thought was that this could replace a Double Wasp - then I saw that central casting! There is way too much metal there, beautifully machined though it is, to use this in anything that gets off the ground. It may have 11.9 litres of displacement, but at only 50HP per cylinder output (I think he said) it just doesn't have the power-to-weight ratio. He mentioned using it in an airboat, which might work - but put some ballast forward!

acogoff · « **Reply #3 on:** September 14, 2016, 03:51:56 PM »

I would cut the guy some slack, it is a prototype. Though I built and flew my own airplane, I never built my own engine, so I keep my mouth shut.

Antietam Classic Cycle · « **Reply #4 on:** September 14, 2016, 04:10:52 PM »

I don't think he has any intention of using in an aircraft, only an airboat. I'm not qualified to critique his work - his skill set is waaaay beyond mine (and likely just about everyone else's here).

clubman · « **Reply #5 on:** September 14, 2016, 05:11:25 PM »

The question is, where did he get all those parts? 7 large motorcycles worth of top end parts, plus one very large Al billet.

trippah · « **Reply #6 on:** September 14, 2016, 05:29:25 PM »

Beautiful

rodekyll · « **Reply #7 on:** September 14, 2016, 10:57:24 PM »

Quote from: clubman on September 14, 2016, 05:11:25 PM

The question is, where did he get all those parts? 7 large motorcycles worth of top end parts, plus one very large Al billet.

a lot of Yamaha's woke up in a bathtub of ice with a note to call their mechanic.

Phang · « **Reply #8 on:** September 15, 2016, 03:37:13 AM »

Quote from: rodekyll on September 14, 2016, 10:57:24 PM

a lot of Yamaha's woke up in a bathtub of ice with a note to call their mechanic.

That's hilarious

pete mcgee · « **Reply #9 on:** September 15, 2016, 03:50:35 AM »

He has eliminated at least 50% of potential oil leaks, where's the fun in that?
This is from the oil coated one working on R2000 m7.
IMO he would be better off with a supercharger rather than a turbo, but its his project and I wish him well.
Love his machining.

bobdar · « **Reply #10 on:** September 15, 2016, 06:17:41 AM »

I guess we can call that a water brake dyno?

John Ulrich · « **Reply #11 on:** September 23, 2016, 02:37:29 PM »

How about a Radial in a pickup truck?

http://carsaroundus.com/1939-plymouth-radial-aircraft-engine/2/

https://www.youtube.com/watch?v=HADpy9bF2U4

twhitaker · « **Reply #12 on:** September 23, 2016, 03:38:43 PM »

FWIW, that crankcase is not billet. It is cast. Take a look at the area around the tappet bores. Nice fillets and radii. Not what you would see if machined.

swooshdave · « **Reply #13 on:** September 23, 2016, 05:54:41 PM »

Quote from: twhitaker on September 23, 2016, 03:38:43 PM

FWIW, that crankcase is not billet. It is cast. Take a look at the area around the tappet bores. Nice fillets and radii. Not what you would see if machined.

Good catch. The "shroud" is machined, maybe from billet, maybe from a cast piece. Regardless that's a big chuck of metal to be machining on.

Penderic · « **Reply #14 on:** September 23, 2016, 07:49:09 PM »

Radial engine in a motorcycle frame....

redrider · « **Reply #15 on:** September 23, 2016, 08:05:45 PM »

How about a Heron head V7 based 18 cylinder radial? If we just pool our resources....

Murray · « **Reply #16 on:** September 23, 2016, 08:32:42 PM »

Quote from: redrider on September 23, 2016, 08:05:45 PM

How about a Heron head V7 based 18 cylinder radial? If we just pool our resources....

Put the most inefficient head design that Guzzi has inflicted on the public on something that needs a high output at low RPM. What could possibly go wrong?

Aaron D. · « **Reply #17 on:** September 23, 2016, 09:01:47 PM »

Like the Merlin?

swooshdave · « **Reply #18 on:** September 23, 2016, 09:40:58 PM »

Quote from: Penderic on September 23, 2016, 07:49:09 PM

Radial engine in a motorcycle frame....

ITSec · « **Reply #19 on:** September 23, 2016, 10:31:16 PM »

Quote from: swooshdave on September 23, 2016, 09:40:58 PM

What's the mileage like when you have more displacement than gas tank volume?

Doppelgaenger · « **Reply #20 on:** September 24, 2016, 01:05:05 AM »

Quote from: ITSec on September 23, 2016, 10:31:16 PM

What's the mileage like when you have more displacement than gas tank volume?

https://www.youtube.com/watch?v=HADpy9bF2U4 You only need enough fuel to overheat it.

tris · « **Reply #21 on:** September 24, 2016, 02:54:44 AM »

Nah - this is how to put a radial engine in a motorcycle

https://en.m.wikipedia.org/wiki/Mego

redrider · « **Reply #22 on:** September 24, 2016, 05:03:23 AM »

Quote from: Murray on September 23, 2016, 08:32:42 PM

Put the most inefficient head design that Guzzi has inflicted on the public on something that needs a high output at low RPM. What could possibly go wrong?

Was not the Heron head developed specifically for radial aircraft engines? Very efficient at moderate rpm but high revs expose the lack of adequate air flow. Not a problem with a 3k redline.

Murray · « **Reply #23 on:** September 24, 2016, 05:42:11 AM »

Quote from: redrider on September 24, 2016, 05:03:23 AM

Was not the Heron head developed specifically for radial aircraft engines? Very efficient at moderate rpm but high revs expose the lack of adequate air flow. Not a problem with a 3k redline.

I've seen the inside of a few aircraft engines I have never seen a Heron head. Far more likely to be used in mass produced Diesels as it makes the head simpler and stronger generally if your using diesel you don't give a rats about weight.

Aaron D. · « **Reply #24 on:** September 24, 2016, 07:31:37 AM »

Again, the Merlin is a Heron design.

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Author Topic: Yamaha Based 14 Cylinder Radial Engine (Read 6342 times)

Penderic

Hymes Inc.

Penderic

redrider

Doppelgaenger

redrider