why does Mr. Brett use the 40 rather than the 46???

   Quick answer - "did" not "does". At the time I tried the 46 (maybe the first person to fly it in a stunt plane, testing for Ted) there was no apparent need for the (significant) additional power, and running a 46 made me have to use .018 lines instead of .015s. That was a LONG time ago (late 88, as I recall) and given what I know now, I am pretty sure I could make good use of a 46 with some effort. But I don't have one, don't particularly need one, and I have what amounts to a gigantic 46VF anyway, in the form of the RO-Jett 61BSE (Brett version).

     A lot of people ran the 46VF and it is an *excellent* stunt engine. If I couldn't get Jett 61s anymore I would probably use a 46VF. I wouldn't use it on a 70+ oz airplane but it would fly it.  I don't have bulletproof setup numbers for it but I am pretty sure I could make it work.

    I expect there will be a lot of current stunt engines available at bargain prices starting around the middle of July.

     Brett

    I expect there will be a lot of current stunt engines available at bargain prices starting around the middle of July.

     Brett

I gather you are expecting many to ditch IC and favor electric? If thats the case, knowing this crowd, not too likely. For that to happen some prerequisits have to be met.

1. A fairly new PC with late Revision drivers, USB or Serial ports, and an OS later than Windows 98. Own a Mac and you are pretty much SOL.
2. The PC should be a notebook computer so you don't have to drag the plane / controller to the desk top, so you can see the monitor.
3. A good understanding on how to install and configure software on the PC, and to fix the PC should you screw something up (Many computer applications do not like to play well with others)
4. Wiindows 7 and most late model PC's no longer support Com ports or drivers and older API. Many .NET apps are not forward compatible and will ne recognize the latest .NET framework updates. Pretty much have to stick with XP but you can no longer get XP on new PC's.

This, even before you start with the stuff you need and need to know for the airplane part.
IC is a analog hands on technology that most on here have learned over decades. Electric is the digital PC software realm, not much in the hands on dept, your machine shop skills will not avail you there.

But it certainly opens up a cottage industry for people to program and test subsystems for electrics and deliver them plug and play. I wonder how much they will charge for online support?
Would have to set up VNC to the users PC so tweaks could be made remotely.

Or is something else happening in mid July to make everyone want to unload thier IC stunt motors?

But it certainly opens up a cottage industry for people to program and test subsystems for electrics and deliver them plug and play. I wonder how much they will charge for online support?
Would have to set up VNC to the users PC so tweaks could be made remotely.

Or is something else happening in mid July to make everyone want to unload thier IC stunt motors?

  When Paul (mostly likely) wins by a mile. I think if we can manage to adjust a 4-2 break motor to competitive levels we can probably figure out how to hook up some wires.

    Brett

>> If Paul is dedicated he can beat most people with an Oil Soaked Nobler and a FOX 35.<<

This much is certain.

I have found the RO-Jett to take a bigger prop and maybe a bigger pipe.  Randy probably has a pipe that works with both.  The needle valve is in a different position, so you'll need two holes in the plane.  I found the RO-Jett to be a tad shorter than the VF, so I had to shim the spinner out a little.  Peculiarly, my RO-Jett crankshaft centerline was a little higher in the airplane than the VF's.  I think the solution was to put a bit more shim under the mounts.  This may not be true of all of them.  All RO-Jetts of a given size don't have the same dimensions.

I don't know, but Randy Powell does stuff like that and makes it work. 

Hi guys,
Yes the OS 46 VF fits the plane just great. I believe the 46 is about a 1/16" longer, so its close enough. I using the same carbon pipe that I'm using for the RoJett 61 (Brett Version).  I've only run the 46 three times in the plane, checked and cleaned the fuel filter and everything seems to be ready. Randy is correct the 46 has a lot more needle setting to play with. I have a bigger RPM range with the 46 than my 40. I'm using a APC 12/4 prop and the engine seems to really like that prop. The 46 has a lot more power than the 40. Thursday or Friday I'll have to get enough nerve to place her in the air. I'm using the R/C Carb locked open and it seems to work great. I would rather be flying my RoJett 61 (Brett Version) but I figure I'll try the plane out with the great OS 46 VF and if everything goes okay, Mr. RoJett will take it place in her. Both engines are sweethearts, I just love the sound of the RoJett.
Gary