One for the engine gurus

didn't the 1st vfr spin in reverse to the later model.. the one with the
shaft drive out the left.

 

Fireblades!
(Oops sorry... it's the RIDERS who are backwards.....)

 

A bit like the 37 litre (yes thirty seven) supercharged Griffon engines
used in the later model Spitfires towwards the end of WWII. It was said
that the pilot had to use a bootfull of rudder and some stick to stop the
aircraft turning off the runway on takeoff, such was the torque reaction.
Simon

 

"Knobdoodle" wrote

Gogomobiles (not the Dart) and Lightburn Zetas both had two stroke
engines with no reverse in the gearbox. The engine was stopped and
started in the other direction to go backwards. Except for the Dart.
It had a reverse gear.

My lawnmower engine goes clockwise when viewed from the top. When I
stick it in reverse it still goes the same way... mmmm?

Which is the front end of the engine in a VW Beetle? When viewed from
the front of the car, the flywheel is on the front of the engine and
turns anti-clockwise. Cylinder # 1 is the one nearest the flywheel,
the next cylinder is # 3. How about Citroens, where the engine is
behind the gearbox. # 1 cylinder is closest to the driver.

Anyone see a trend yet? Neither do I. Viva la difference.

Theo

 

used contra-rotating cranks. (As

*Benelli, and the foggy petronas also does

JL

 

No, I was talking about the two-smokes. It was actually the Paton. (But I still can't remember that German,
sidecar-engine , Peter Clifford team that Gobert qualified real well at PI but then crashed at the Southern
Loop first lap. They used to be silver/grey and I think Van der Goorbergh rode a year with them...)

 

The point I trying to make, was to get him thinking about the larger
picture.

And just what is the reason they made them with counter rotating cranks?

Nathan

 

So the gyroscopic forces were equally opposed and cancelled each-other out. (Making the engine a non-factor
in the handling and geometry of the bike.)

 

"Nathan Smith" wrote

When you couldn't see it yourself.

cranks?

When you gear two cranks together they sort of tend to run in opposite
directions naturally. It's the easiest way to couple them.

Theo

 

Errmm... I was being serious Theo....
(Now I'm gonna' be real troubled trying to figure out what it was the Theo thought so wicked!)

 

I know this, hmmm sometimes things get lost in the translation... and
please, give Clem the reason why you found his post funny...

Nathan

 

"Nathan Smith" wrote

I might but not here.

Theo

 

Shhhh......Don't mention the o's alzheimer's, Clem

 

"Knobdoodle" wrote

I thought you were leading him on. Now I think you may be leading me
on as well.

They made them with counter-rotating cranks because that is the
easiest, cheapest, and most efficient way to couple them.

Theo

 

Oh; OK, yeah I'd never thought of it that way....
I was a GP fan during the late eighties when the contra-rotating Yam (and it's clones) was touted as being
"perfect" while the single-crank Honda was the flawed design.
Shit; ...you're telling me it was just the low-tech way to do it?!!?
Damn I feel ripped off!

(But secretly chuffed that you think I'm waaay smarter than I really am!)

 

Which V2 500 was that? The transverse one, or the longtitudinal one?

Gary