News:



  • July 01, 2025, 09:01:05 PM

Login with username, password and session length

Author Topic: The last engine you will ever buy  (Read 5282 times)

Offline Peter Nevai

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 975
    • C3EL
The last engine you will ever buy
« on: January 14, 2018, 06:48:19 PM »
Interesting subject line is it not? The following content may not what you imagined the subject line would hint at however. See I have a small. perhaps even tiny collections of engines. This is highly likely due to the fact that #1. I am an engineer by trade and #2 I believe in only having only the right tool to do the job. Same can be said about the size of my private air force I plan on having. So anyway lets get on with the specifics. My current inventory of engines is as follows.
1. OS Max 60H gold head with CL NVA and Venturi
2. OS 40 FSR's also converted to CL
1. Old School OS 35S
1. Fox 25 CL
1. Old School OS 20. CL Missing the venturi, NVA Back Plate and thrust collar (Looking for those bits and pieces BTW)
1. OS 46 LA CL converted
1. OS 46 VF

All of the engines ahve very little time (The LA46 is new). This is all I figure I will ever need depending upon the current size of the personal air force.
I plan on haveing at any given time 3 maybe 4 air frames flyable at any given time. So now we have all that preliminary dull inventory task done and out of the way, I pose my current predicament and the genesis of my subject line description. After consulting the stars, my horoscope, a 132.5 year old monk from a remote monastery hidden away in the Himalaya mountains with judicious research into the pros and cons of my wife actually locking me out of the house. I have come to the convoluted conclusion that I need one more engine and with that acquired, I can put paid to my investments into CLPA accouterments.

Right now I ave squirreled away 2 un-built model kits 1 Forerunner kit and 1 Sig Magnum also I have my 80% finished Pathfinder. This encompasses my current air force as of this writing. I will maybe snag a Vector ARC or SV11 ARC at some time in the near future. I have the OS46 LA slated for the Fore Runner, The 0S 46 VF either for the Pathfinder or the SIG magnum and this decision is the bane of my quandary. I was planning to put the 40VF into the Pathfinder as it is designed for a tuned pipe, but as my current builders block with that particular model had my considering shoehorning the 46VF into the Sig Magnum. But for some reason the thought of that gives me that feeling you get when all of a sudden a highway trooper pulls up behind your car and proceeds to follow you for miles, for no apparent reason. Well it gets rather uncomfortable and has you mentally checking the entire maintenance records for your car to see if something like a tail light may be out. You end up unable to takes your eyes off the speedometer which ends up making you drive too slow thus advertising with Blazing Honking Bright Light Tells that you may have something to hide. (Of course worse if you actually have something that would make being pulled over rather unpleasant).

Thus the reason for the last engine I am ever going to buy. What modern side exhaust engine (Non 424) should if put into the magnum. I am shooting to a 50-51 Displacement preferably SE (or I can swallow the butterflies and go with the VF) I was leaning towards RO-JETT if available in a SE and Non 424 characteristics PA Possibly if they are available in SE and non 424 or even better something a bit more economical but still a install and forget power plant. Obviously I am ready to spend money but rather not if the end result is the same. These will be my mainstay engines LA46, VF46, and the yet to be announced purchase. The other in the inventory will fill any other bug that may find itself migrate up my nether regions in the foreseeable future.

So let the 3.856237 gazillion brain cells here at Stunt hangar percolate, postulate, misfire and propose as suggestion?

Thanks 
Words Spoken by the first human to set foot on Mars... "Now What?"

Offline Larry Renger

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4060
Re: The last engine you will ever buy
« Reply #1 on: January 14, 2018, 07:11:16 PM »
What is missing is a Norvel Big MiG .061! And an RSM Tercel kit.  LL~
Think S.M.A.L.L. y'all and, it's all good, CL, FF and RC!

DesignMan
 BTW, Dracula Sucks!  A closed mouth gathers no feet!

Offline BYU

  • 25 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 480
Re: The last engine you will ever buy
« Reply #2 on: January 14, 2018, 07:13:21 PM »
You need another LA 46.
After you use the one you have, you will understand why.


Offline mike londke

  • 23 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 1477
Re: The last engine you will ever buy
« Reply #3 on: January 14, 2018, 09:23:40 PM »
NELSON .36 Because well.....its an N-36.
AMA 48913  USPA D-19580  NRA Life Member  MI State Record Holder 50 way Freefall Formation Skydive  "Don't let the planet sneak up on you"

Offline Target

  • C/L Addict
  • 2019 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 1692
Re: The last engine you will ever buy
« Reply #4 on: January 14, 2018, 09:32:29 PM »
You need another LA 46.
After you use the one you have, you will understand why.

Yep!
Regards,
Chris
AMA 5956

Offline Randy Cuberly

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3673
Re: The last engine you will ever buy
« Reply #5 on: January 14, 2018, 10:07:48 PM »
Uhhhh....An OS 46 VF is much too heavy and way too powerful for a Pathfinder.  Plus it's a rear exhaust engine and that will very much complicate mounting it on a relatively small profile.  Where will you put the pipe or header muffler??

It will work OK in the Magnum if you modify the fuselage to enclose a Pipe.  It would work very well in the SV11!

It's a very powerful engine suited for 650 to 700 Sq in stunters!!   The LA46 would be more suited for the Pathfinder!

Just say'in!

Randy Cuberly
Randy Cuberly
Tucson, AZ

Offline GERALD WIMMER

  • 25 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 659
    • Auckland Free Flight Club
Re: The last engine you will ever buy
« Reply #6 on: January 14, 2018, 10:14:43 PM »
Hello. Don't cut yourself short live a bit and buy more motors and build more planes  #^
Walked into the modelling room and counted the models that were ready to fly and got to 51 and could add another 5 or so with a day bolting motors back on some airframes.
Admittedly a 1/2 of them  are my wife's and my sons but the more the merrier.  ;D
Have flown LA 46's ST 51's and ST 60's but nothing beats a scheule ported 60 or 90 four-stroke for that other sensation of a big engine which makes a LA 46 seems like a Fox 35 by comparison.   ;)
Best all-round engine how about the Avistar 61 (which is the same weight as the 46 version and on the cheap end that even I can afford) or PA 65 Evo 60 NX or Ro Jett 76 etc but admit the LA 46 is an easy to use engine for mid size models.
Note I am a meddler that likes flying for fun and not to win so my advice is probably all wrong in most peoples eyes  VD~

Regards Gerald  #^

Offline Steve Helmick

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 10265
Re: The last engine you will ever buy
« Reply #7 on: January 14, 2018, 11:23:36 PM »
Uhhhh....An OS 46 VF is much too heavy and way too powerful for a Pathfinder.  Plus it's a rear exhaust engine and that will very much complicate mounting it on a relatively small profile.  Where will you put the pipe or header muffler??

It will work OK in the Magnum if you modify the fuselage to enclose a Pipe.  It would work very well in the SV11!

It's a very powerful engine suited for 650 to 700 Sq in stunters!!   The LA46 would be more suited for the Pathfinder!

Just say'in!

Randy Cuberly

Actually, the "80% finished Pathfinder" is the LE that Mr. Nevai wrote about several years ago and put in the park position. Not a profile.

Which is very suitable for a .40VF or .46VF, or even a RO-Jett .67, if you have one. The one thing I don't see on the list is a .40VF, yet there is a reference to one. That has me confused (also!).  D>K Steve
"The United States has become a place where professional athletes and entertainers are mistaken for people of importance." - Robert Heinlein

In 1944 18-20 year old's stormed beaches, and parachuted behind enemy lines to almost certain death.  In 2015 18-20 year old's need safe zones so people don't hurt their feelings.

Offline Jim Kraft

  • 2015
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3433
  • AMA78415
Re: The last engine you will ever buy
« Reply #8 on: January 15, 2018, 09:53:10 AM »
There are only three choices for another engine. An Orwick 64, an Anderson Spitfire, or a Super Cyclone. Fuel costs are less than a fourth. Tuned pipes are not needed or wanted. You will have all the power you need. It will be controlled by the spark and therefor no runaways. Can you see a downside here?
Jim Kraft

Offline john e. holliday

  • 25 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 22987
Re: The last engine you will ever buy
« Reply #9 on: January 15, 2018, 11:50:17 AM »
But, a good set of ear muffs help if you get one. LL~ LL~ LL~
John E. "DOC" Holliday
10421 West 56th Terrace
Shawnee, KANSAS  66203
AMA 23530  Have fun as I have and I am still breaking a record.

Offline GERALD WIMMER

  • 25 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 659
    • Auckland Free Flight Club
Re: The last engine you will ever buy
« Reply #10 on: January 15, 2018, 12:29:51 PM »
There are only three choices for another engine. An Orwick 64, an Anderson Spitfire, or a Super Cyclone. Fuel costs are less than a fourth. Tuned pipes are not needed or wanted. You will have all the power you need. It will be controlled by the spark and therefor no runaways. Can you see a downside here?

Hello You missed my favorite the Fox 59 (Long Shaft then the Stunt version). After flying my old Atwood 60 in a Viking at our Nationals a couple of weeks ago in classic against LA 46's in more modern classic planes (1970 cutoff here) all I can say was it was lots fun even if totally out classed  :)

Regards Gerald

Offline Fredvon4

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2101
  • Central Texas
Re: The last engine you will ever buy
« Reply #11 on: January 15, 2018, 12:39:50 PM »
Along the way of MY coming back... I spent way too much on the old school engines before reading and deciding to abandon the 4-2-4 grief

Once I learned the simplicity of OS and other 2-2-2 my flying became much more fun

MY pure hack flying does not need the cost of the better PA or Ro-Jet power trains and I deliberately steer away from ANY ringed engines

I did let Randy Smith talk me into one of his B&B Magnum .52 for the ARF  SV-11

Because you have one...of the OS 46 VF rear exhaust ... and each of the different planes you listed...I am not sure you really need to be looking for the "Last Engine Ever"

Only YOU know where your "mini air-force" will grow

As I age and become more and more Memory challenged...I am focusing on sport fly craft that ALL have similar easy of start and adjust, and fly   

Peter if you are intent on being  a competitive stunt pilot, I think you need to focus on the best of the best IC or Electric systems

"A good scare teaches more than good advice"

Fred von Gortler IV

Offline Jim Mynes

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 321
  • Chelsea, ME
Re: The last engine you will ever buy
« Reply #12 on: January 15, 2018, 12:40:54 PM »
I have already bought the last glow engine I will ever buy. But y’all carry on, I still like the smell.
I have seen the light, and it’s powered by a lipo.

Offline Larry Fernandez

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 1275
Re: The last engine you will ever buy
« Reply #13 on: January 15, 2018, 02:45:17 PM »
I don’t believe I’ll have a need to buy anymore motors in my lifetime.
At present I have the following,
One PA .75 (new)
Two RO Jett .65’s (one is new)
One RO Jett .61
Two GMA Jett .51’s
One OS VF .40 (new)
Five Aero Tiger .36’s (two are new)
Five OS .20 FP’s
Two OS .25 FP’s
And a bunch of crap motors that I will never use,
A couple of Fox .35’s
Two ST .60’s
One OS Max .35S
Two Johnson Stunts (.32 I believe)
A Johnson CS
And an OS .25 LA

Oh yeah, a bunch of Fox .15’s (just for fun)

So as you can see I have all the motors I need, so I can’t foresee any reason for purchasing any more motors.
Except for a PA .40 Ultra Light, if I can find one. Any leads?

Larry,  Buttafucco Stunt Team

Offline GERALD WIMMER

  • 25 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 659
    • Auckland Free Flight Club
Re: The last engine you will ever buy
« Reply #14 on: January 15, 2018, 03:04:26 PM »
Hello. Doesn't everyone need at least one large diesel , a four stroke and a spark ignition and a Brown Junior just to know how it all started ! Regards Gerald  #^

Offline Dane Martin

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 2804
  • heli pilot BHOR
Re: The last engine you will ever buy
« Reply #15 on: January 15, 2018, 03:47:00 PM »
I don’t believe I’ll have a need to buy anymore motors in my lifetime.
At present I have the following,
One PA .75 (new)
Two RO Jett .65’s (one is new)
One RO Jett .61
Two GMA Jett .51’s
One OS VF .40 (new)
Five Aero Tiger .36’s (two are new)
Five OS .20 FP’s
Two OS .25 FP’s
And a bunch of crap motors that I will never use,
A couple of Fox .35’s
Two ST .60’s
One OS Max .35S
Two Johnson Stunts (.32 I believe)
A Johnson CS
And an OS .25 LA

Oh yeah, a bunch of Fox .15’s (just for fun)

So as you can see I have all the motors I need, so I can’t foresee any reason for purchasing any more motors.
Except for a PA .40 Ultra Light, if I can find one. Any leads?

Larry,  Buttafucco Stunt Team

Sounds like your unneeded 25 LA could be the last engine I'd need to buy.....

Offline Target

  • C/L Addict
  • 2019 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 1692
Re: The last engine you will ever buy
« Reply #16 on: January 15, 2018, 04:02:04 PM »
Me too.
I'll take the LA.25 off your hands, Larry.
I use MonoKote, I don't know if that helps me or not.

R,
Target
Regards,
Chris
AMA 5956

Offline Randy Cuberly

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 3673
Re: The last engine you will ever buy
« Reply #17 on: January 15, 2018, 04:15:28 PM »
Actually, the "80% finished Pathfinder" is the LE that Mr. Nevai wrote about several years ago and put in the park position. Not a profile.

Which is very suitable for a .40VF or .46VF, or even a RO-Jett .67, if you have one. The one thing I don't see on the list is a .40VF, yet there is a reference to one. That has me confused (also!).  D>K Steve

Well, He didn't say it was a Pathfinder LE...That's a very different airplane.  Sorry I'm an engineer (even if an old retired one) and expect descriptions and labels to be correct.... <= <= <= <=  LL~ LL~ LL~ LL~ LL~ LL~

Randy Cuberly
Randy Cuberly
Tucson, AZ

Offline Target

  • C/L Addict
  • 2019 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 1692
Re: The last engine you will ever buy
« Reply #18 on: January 15, 2018, 07:54:01 PM »
He did slightly imply it when he said that the Pathfinder was made to take a piped engine. I was like, "No it's NOT! You don't see pipes on profiles normally, hmm, he must have the full fuse version."
I'm pretty notorious though for not reading the OP's ENTIRE post, and that can lead to that situation.... For ME normally!

R,
Target
Regards,
Chris
AMA 5956

Offline MikeyPratt

  • Trade Count: (0)
  • Captain
  • *****
  • Posts: 773
Re: The last engine you will ever buy
« Reply #19 on: January 16, 2018, 09:25:39 PM »
Hi Peter,
All the engines you have listed are very good motors.  For the Magnum look at the ASP XLS 52 the Randy sells (has to be set up by Randy).  What a slick running motor with great power pretty easy on fuel and dead reliable.  With a few changes the old Magnum can still be very competitive.  The best prop is a three blade 11-1/2 x 4.5.  Let me know and I can help you with the mods for the Magnum.

Later,
Mikey

Offline FLOYD CARTER

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4503
    • owner
Re: The last engine you will ever buy
« Reply #20 on: January 17, 2018, 11:35:54 AM »
The "Last engine I will ever buy" hasn't been bought yet. I can't predict when that will be, because I can't see into the future.

Also, "you will always find your missing car keys in the last place you look."
91 years, but still going
AMA #796  SAM #188  LSF #020

Offline FLOYD CARTER

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4503
    • owner
Re: The last engine you will ever buy
« Reply #21 on: January 17, 2018, 11:41:28 AM »
Why do I need another engine?  This one has everything!
91 years, but still going
AMA #796  SAM #188  LSF #020

Offline Peter Nevai

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 975
    • C3EL
Re: The last engine you will ever buy
« Reply #22 on: January 17, 2018, 06:56:17 PM »
The pathfinder is the George Delaney model kit by RSM. The LA 46 is slated for the Forerunner profile, Looking perhaps for another SE engine for the magnum other than using the OS46 VF. If you read the amazing model stories you can earn the fate of the last Sig  Magnum I built. I had a ST G51 in that one and did not particularly like that combination. That ST engine was heavy. So I figure that I'd try again with another engine. I may end up putting the OS46VF in there and mod the fuse to partially cover the pipe, but was looking for something in the 50 or 51 size (Not another ST G51, besides the muffler set up for that thing was UGLY as well as Heavy) Perhaps I should drop Tom Dixon a line and see if there are any RO-Jett 51 SE's around. Or something else that runs 2-2-2.
« Last Edit: January 17, 2018, 07:16:28 PM by Peter Nevai »
Words Spoken by the first human to set foot on Mars... "Now What?"

Offline GERALD WIMMER

  • 25 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 659
    • Auckland Free Flight Club
Re: The last engine you will ever buy
« Reply #23 on: January 17, 2018, 07:10:48 PM »
Hello Floyd Is that a Dennymite, Airstream Standard you have there?   H^^   On the Magnum powerplant I wonder if the newer OSAx55  is too wide and heavy to fit in a standard model. Regards Gerald

Offline Peter Nevai

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 975
    • C3EL
Re: The last engine you will ever buy
« Reply #24 on: January 17, 2018, 07:13:31 PM »
Hi Peter,
All the engines you have listed are very good motors.  For the Magnum look at the ASP XLS 52 the Randy sells (has to be set up by Randy).  What a slick running motor with great power pretty easy on fuel and dead reliable.  With a few changes the old Magnum can still be very competitive.  The best prop is a three blade 11-1/2 x 4.5.  Let me know and I can help you with the mods for the Magnum.

Later,
Mikey

Gee.... Thanks Mike, I will certainly take you up on that offer. I have some things to get out of the way before I start construction, but note that I do not have a model building super shop like many others here, (No band saws, Table Jig saws and the like) which is why I went for the Foam Wing Sig kit so any mods will be limited with what I can do with an Xacto knife, Straight Edge and Dremel and sand paper.
Words Spoken by the first human to set foot on Mars... "Now What?"

Offline Peter Nevai

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 975
    • C3EL
Re: The last engine you will ever buy
« Reply #25 on: January 17, 2018, 07:44:53 PM »
There are a couple of OS 50 FSR's on the Bay anyone have experience with these?
Words Spoken by the first human to set foot on Mars... "Now What?"

Offline MikeyPratt

  • Trade Count: (0)
  • Captain
  • *****
  • Posts: 773
Re: The last engine you will ever buy
« Reply #26 on: January 18, 2018, 11:50:56 AM »
The pathfinder is the George Delaney model kit by RSM. The LA 46 is slated for the Forerunner profile, Looking perhaps for another SE engine for the magnum other than using the OS46 VF. If you read the amazing model stories you can earn the fate of the last Sig  Magnum I built. I had a ST G51 in that one and did not particularly like that combination. That ST engine was heavy. So I figure that I'd try again with another engine. I may end up putting the OS46VF in there and mod the fuse to partially cover the pipe, but was looking for something in the 50 or 51 size (Not another ST G51, besides the muffler set up for that thing was UGLY as well as Heavy) Perhaps I should drop Tom Dixon a line and see if there are any RO-Jett 51 SE's around. Or something else that runs 2-2-2.

Hi Peter,
Nice looking Magnum.  I re-engined one of my Magnums with an OS 40 VF and added a pipe tunnel.  I and had a great time learning to use it.  I had to add a little tail weight to get it to balance but the overall weight went from 55 ounces to 62 ounces and it flew really well.  When Paul Walker told me to use Bolly 11-1/4” X 4 two blade it really came to life.  Good smooth power and ton of line tension every where.  What a blast it was to fly.

A good friend (Sam S) built a twin rudder Magnum with a Randy Smith St 51 and was a really good flyer.  I helped trim it out and I really liked the model and how the engine ran (I kept telling Sam it needed more trimming but after a dozen flights he was starting to look at me suspiciously) what a hoot.  The best prop we found was Bolly 3 blade 11-1/5 X 4-1/5.  Sam flew that model at the US Nat’s and placed third in Advance.

Later,
Mikey

Offline FLOYD CARTER

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4503
    • owner
Re: The last engine you will ever buy
« Reply #27 on: January 18, 2018, 07:05:50 PM »
The Dennymite Airstream is indeed a pre-war engine.  So is this one.
91 years, but still going
AMA #796  SAM #188  LSF #020

Offline GERALD WIMMER

  • 25 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 659
    • Auckland Free Flight Club
Re: The last engine you will ever buy
« Reply #28 on: January 18, 2018, 09:23:35 PM »
Hello Floyd
Have you used (or heard of) a Brown Junior on a control line model? Is it a model B ?
Regards Gerald

Offline Larry Fernandez

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 1275
Re: The last engine you will ever buy
« Reply #29 on: January 22, 2018, 09:07:30 PM »
Sounds like your unneeded 25 LA could be the last engine I'd need to buy.....

Dane, give me a call
(408) 227-1693

Larry, Buttafucco Stunt Team

Offline FLOYD CARTER

  • 24 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4503
    • owner
Re: The last engine you will ever buy
« Reply #30 on: January 23, 2018, 06:21:55 PM »
A Brown Jr. on aC/L model is a waste of time/.

Although....I once flew a Bunch Tiger .45 on C/L.

And some have flown Ohlsson 60

All are sideport engines.  Lacking on power, and difficult to get proper fuel flow, being sideport.

The Brits have a history of using sideport diesels in C/L, but I doubt if they still do.
91 years, but still going
AMA #796  SAM #188  LSF #020

Offline Steve Scott

  • 21 supporter
  • Trade Count: (0)
  • Captain
  • *
  • Posts: 673
  • Terrorizing earthworms since '65
Re: The last engine you will ever buy
« Reply #31 on: January 23, 2018, 06:55:01 PM »

Tags: