stunthanger.com

General control line discussion => Open Forum => Topic started by: peabody on October 07, 2015, 07:25:03 PM

Title: Irvine .40
Post by: peabody on October 07, 2015, 07:25:03 PM
Hi
I was sort of coerced into buying some CL stuff....nice guy, and what seemed like fair pricing.
Something in the deal was a new Irvine .40.....I would imagine that it was new 20 years ago, but it is un-run and turns freely...
Is anyone fooling with these of late?

Thanks
Title: Re: Irvine .40
Post by: Randy Cuberly on October 07, 2015, 08:50:25 PM
Hi
I was sort of coerced into buying some CL stuff....nice guy, and what seemed like fair pricing.
Something in the deal was a new Irvine .40.....I would imagine that it was new 20 years ago, but it is un-run and turns freely...
Is anyone fooling with these of late?

Thanks

I played with a couple about 12 - 15 years ago.  Basically they are well made very powerful engines.  They are really not tuned for stunt type of runs but can be run in a style similar to the VF40.  I raised the boost port timing on one of them about 7 degrees and it took some of the edge off but of course also lost a bit of power in the midrange to top...not a bad thing...I ran one of them in a 655 sq in profile for a while and played with venturi sizes and head shims.  Eventually got it to rum acceptably but it always seemed to be a bit critical on fuel and needle setting.  maybe more fiddeling would make it better but I finally just got tired of playing.  I still have it, and the unrun one.  Maybe I'll get interested in it somtime but certainly not at present.  If you develop it I would be interested in the setup. 

As it comes out of the box it's more of a go fast engine than anything else...might in fact make a good class I carrier engine with the right OS carb!

Randy Cuberly
Title: Re: Irvine .40
Post by: Avaiojet on October 08, 2015, 04:43:59 AM
Hi
I was sort of coerced into buying some CL stuff....nice guy, and what seemed like fair pricing.
Something in the deal was a new Irvine .40.....I would imagine that it was new 20 years ago, but it is un-run and turns freely...
Is anyone fooling with these of late?

Thanks

I ran a few and still have a few. I have a 40 and I believe a 46, both NIB. Originally made in England, as mine were.

The new ones are made in China or Japan I believe and not as popular with those modelers that know the engine. It should say "Made in England," on the case.

They are a fine R/C engine. I purchased them for R/C but they came with venturies.

Brodak is having some 40 size engines made in Russia, so the story goes.

I would be patient and wait to see how Brodak's 40's turn out.

My interest would be a small case engine, possibly the size of a 40 that would be a 46.

Fill that OS LA 46 gap. I would like to have two more .46 engines.

Photo added.
Title: Re: Irvine .40
Post by: dennis lipsett on October 08, 2015, 10:31:06 AM
The venturi conversion denotes it as a job done by Just Engines in the U.K.
Irvine only offered one engine as a C/L ready and it was a 36 Red case. It wasn't really suitable as it had all of the faults described in a previous post. Byron Barker was doing reworks to make the more stunt friendly. The engine dried up when Ron Irvine retired.
Title: Re: Irvine .40
Post by: Peter Grabenstein on October 08, 2015, 12:36:43 PM
To my Memory,
FAI F2B Expert Pilot Christoph Holtermann Germany used to fly this one on pipe on a rich 2 stroke Setting,
......many..many moons ago.
Just a typical heavy (case) F2B pipe engine.
Buy 3, fly one and use the other 2 for parts.

Peter  H^^
Title: Re: Irvine .40
Post by: Motorman on October 08, 2015, 03:21:06 PM
All I know is the Irvine 15 speed engines they sent over here through Tower Hobby where total junk.


MM
Title: Re: Irvine .40
Post by: Air Ministry . on October 08, 2015, 10:03:52 PM
(http://stunthanger.com/smf/index.php?action=dlattach;topic=39103.0;attach=161590;image)

Flew it in the big Spitfire with a 10 x 4 Grish 3 blade . Kinda quick and ' locked in ' . Needed the SMALL OS 40 FSR S venturie,
which is a perfect fit. Must do the tank for this soon .

(http://stunthanger.com/smf/index.php?action=dlattach;topic=39103.0;attach=161598;image)

It had a sorta tounge muffler up the back with four 2 mm holes . Maybe sitting on 11.000 odd perhaps , or more in a big heavy plane .Like This .
Figure a 12 x 5 topflite props marginal , but I will try it . dunno if the interiors the same as the red one . There was some pretty weird multi port liners , ringed & abc .
Title: Re: Irvine .40
Post by: Glenn (Gravitywell) Reach on October 10, 2015, 08:23:15 PM
I have one Irvine .40 that I stuck a venture on (don't ask me what size or anything) and have been flying the heck out of it for years!  It will do a fast 4-2-4, but runs better 2 cycle and 11/4 Grish.  I love that motor....tons of power and it never quits.  Wished I had the money to buy another.  I've had that motor on several airframes, crashed most of them and the motor always survives. H^^
Title: Re: Irvine .40
Post by: Avaiojet on October 10, 2015, 08:26:59 PM
I have one Irvine .40 that I stuck a venture on (don't ask me what size or anything) and have been flying the heck out of it for years!  It will do a fast 4-2-4, but runs better 2 cycle and 11/4 Grish.  I love that motor....tons of power and it never quits.  Wished I had the money to buy another.  I've had that motor on several airframes, crashed most of them and the motor always survives. H^^

Glenn,

I never had any issues with mine. But they are a bit large.

Got a photo of your Irvine 40 with the venturi? I'd like to see the venturi.

Charles
Title: Re: Irvine .40
Post by: peabody on October 11, 2015, 07:57:04 AM
When I get home and have a few minutes, I'll look for venturii . I believe there are several .
I'm thinking that I'll probably sell it.....I have enough engines........

Have fun!
Title: Re: Irvine .40
Post by: Avaiojet on October 11, 2015, 09:44:19 AM
When I get home and have a few minutes, I'll look for venturii . I believe there are several .
I'm thinking that I'll probably sell it.....I have enough engines........

Have fun!

Peabody,

Great!

I could probably use a venturi that fits.

Let me know.

Charles