Bentley aero engine

[Screwy]

The conversation found it's way around to hobbies tonight at Whoop hall ,
Mine is model engineering , mainly petrol engines , I've been building one of these (http://www.rjdunn.co.uk/tony/aero/thumb0001.htm) on and off over the last few years though mine is not as advanced construction wise as the one in the link as I have to finish making a vertical mill for some of the more complex milling operations .

The engine is a nine cylinder rotary but not rotary as in wankel but rotary as in the crank is fixed and the whole engine rotates around it :eek: Hopefully the above link will make things clearer than my attempt at describing it tonight .

[Gizmo]

fook me Screwy no wonder you've been on as long with it!! how complex?!!! it ain't no airfix kit is it :D

[Spud Raver]

Do you buy anything in? Or do you make the whole lot from scratch? :eek:

[Mr C]

Thats bloody fantastic

[ProjectImola004]

So I'm sure you've heard of Barry Hares and his amazing working RR Merlin and RR Eagle that he built also.

http://www.enginehistory.org/ModelEngines/Hares/Merlin%20XX/MerlinXX.mpg

I went to a lecture from him back in 2003 when he had just completed the Eagle, it hadn't run at that point, but judging by the sound of the Merlin, it will sound amazing - lets face it, how often do you get to hear a 'H-24' configuration engine these days? It even had it's own 'coffman' start using .22 cartridges!!! :eek:

[ProjectImola004]

very very well engineered by the way - I love this sort of stuff even though I only ever make static model aircraft!

[Derek]

This brings to mind that there was once a Swiss motorcycle called Megola (http://www.cybermotorcycle.com/gallery/classics_h/Megola%20front%20wheel.htm) that had a 5 cylinder rotary engine in the front wheel.

[ProjectImola004]

Amazing piece of engineering huh, why doesn't anybody do anything like this anymore - just for fun?

Verdel also built a radial into a motorcycle didn't they -

[ProjectImola004]

I must admit to having built a few aero engines in my time.....







....ok; they are only about 3" long :D

[Screwy]

Do you buy anything in? Or do you make the whole lot from scratch? :eek: All from scratch Davie , The crankcase started out as a solid lump of carbon steel 6 1/4 diameter x 2 1/4 inch long and took quite a few evening to whittle out on a 4 1/2 inch centre height boxford lathe :rolleyes:


So I'm sure you've heard of Barry Hares and his amazing working RR Merlin and RR Eagle that he built also.

Saw the actual engine in the solid so to speak at an exhibition , Not seen the napier yet though , he literally hues his engines from the solid no castings at all on the Merlin . Love the models , It was a large scale airfix hurricane that started my interest in aero engines at the age of 12 :)


This brings to mind that there was once a Swiss motorcycle called Megola (http://www.cybermotorcycle.com/gallery/classics_h/Megola%20front%20wheel.htm) that had a 5 cylinder rotary engine in the front wheel.
I was racking my brains last night trying to remember the Megola :) I wonder if it was like most aero engine and only had two settings , On and off , would definitely make for an interesting riding experience :D

[Derek]

Amazing piece of engineering huh, why doesn't anybody do anything like this anymore - just for fun?

Verdel also built a radial into a motorcycle didn't they -There have been a few radial engined bikes like this thing (http://thekneeslider.com/archives/2006/05/10/radial-engine-powered-motorcycle/), but with a rotary the whole engine birls round! I can easily see why nobody builds them anymore :D

[ProjectImola004]

Love the models , It was a large scale airfix hurricane that started my interest in aero engines at the age of 12 :)



I started as a child with airfix models - haven't really stopped or grown up really. I love building large scale planes (1/24th) - the latest offerings from China(Trumpeter) are pretty good. They are nothing compared to what you are building, but I never build out of the box as it were, always super-detailing or modifying etc. :)

taking of Merlin engines; I love to hear the sound of one - my website is out of date, but has a great Merlin growling at the opening...

http://www.epl.quarryhillweb.com

[Steve748]

There have been a few radial engined bikes like this thing (http://thekneeslider.com/archives/2006/05/10/radial-engine-powered-motorcycle/), but with a rotary the whole engine birls round! I can easily see why nobody builds them anymore :D

It must have incredible engine braking:eek:

[weeveetwin]

I expect most of us have seen this one - but for those who haven't it's worth a look. Amazing dedication to model-engineering. All it needs is a tiny wee driver..!

http://www.youtube.com/watch?v=SeUMDY01uUA

[ProjectImola004]

without even opening this one up, I bet it's the amazing French guy who built the equally amazing Ferrari!!! :)

[ProjectImola004]

yep, thought as much - wasn't it amazing!!!

[Freak]

This brings to mind that there was once a Swiss motorcycle called Megola (http://www.cybermotorcycle.com/gallery/classics_h/Megola%20front%20wheel.htm) that had a 5 cylinder rotary engine in the front wheel.

I've seen that and several others at the Guggeheim Museum (Vegas though) - The Art of the motorcycle

http://www.guggenheim.org/exhibitions/past_exhibitions/motorcycle/motorcycle.html

[GDBD59]

http://www.epl.quarryhillweb.com[/url]



Excellent.......listened twice, 2nd with the volume up further........"hee hee hee-ing"

Entirely different & not realistic or badly edited maybe, but I like this....

http://video.google.co.uk/videoplay?docid=5967384923877111213&q=Rendezvous+Claude+Lelouche

[Biscuit]

taking of Merlin engines; I love to hear the sound of one - my website is out of date, but has a great Merlin growling at the opening...

http://www.epl.quarryhillweb.com



Excellent.......listened twice, 2nd with the volume up further........"hee hee hee-ing"

Entirely different & not realistic or badly edited maybe, but I like this....

http://video.google.co.uk/videoplay?docid=5967384923877111213&q=Rendezvous+Claude+Lelouche


like it, now i know where Snow Patrol got the video from for Open Your Eyes (http://www.youtube.com/watch?v=InzRp3Vbik0)

[ProjectImola004]

http://video.google.co.uk/videoplay?docid=5967384923877111213&q=Rendezvous+Claude+Lelouche[/url]

...it's a V6 but I couldn't work out whether it was an older 911 or a Ferrari or Maserati etc. - a nutter all the same!!! :p

[Scottch]

A V6 in a 911???

[Scottch]

From Wikipedia

"In promotions, by fans and in various internet discussions, it is often claimed or speculated that the film uses Lelouch's own Ferrari 275 GTB, some other Ferrari type, an Alpine, or even a Le Mans prototype race car (largely believed to be a Matra, which was a successful racer a few years before the filming). Some even boldly state the type or color of the car, despite it never being seen. For the anonymous driver, professional racers of the time like Jacques Laffite, Jacky Ickx or Petar Vranesevic were suspected.

Calculations made by several independent groups showed that the car never exceeded 140 km/h (85 mph)[1], while another[2] estimated that the car had peaked at 220 km/h (136.7 mph). Lelouch himself claimed that the top speed achieved was over 200 km/h, somewhere between 230 km/h and 240 km/h.[3]

Comments from Lelouch prove that the vehicle that carried the camera was his Mercedes-Benz 450SEL 6.9.[4] A picture was released of Lelouch working with the gyro stabilized camera on his Mercedes. This model, which could reach a top speed of 235 km/h, was only available with a 3-speed automatic transmission. Yet, one can hear gear changes up into 5th, with a high-revving engine indicating speeds of well over 200 km/h. Sometimes one can hear the driver miss gears while attempting to shift as fast as possible, something that is impossible with automatic transmission, proving that the sound was dubbed. It is suggested that the sound was dubbed with the noise of Lelouch's 275GTB, which has a corresponding number of gears and a similar engine note.

A May 2006 making-of-the-rendezvous documentary indicates that Lelouch himself was the driver, that the car driven was the Mercedes, although the sound track is from a Ferrari. One observer was posted close to the Louvre palace at a blind junction (archway) to assist the driver."

So, it was filmed from a V8 Merc and dubbed with the engine sounds from a V12 Ferrari

[GDBD59]

wrt to the "Ferrari" video:- I first heard about it from the F1 writer Nigel Roebuck of "Autosport" fame some years ago. Supposedly video copies existed & eventually specialist motorsport vendors started to sell it.

Roebuck mentioned it because the story went that it was an ex- F1 driver in the car, but the identity wasn't revealed.