Those that are running a nelson for profile what size throat bore are you using?
Thanks
David

I have a q-500  engine that has been converted to a 36 for profile.

Thanks for the info.  Now I know you run nelsons in the other classes do you run the same size carb in the 40 also?  I was planning on using a 40 on pressure for class 1.  When I got the nelson that I had converted I came across another deal for two others so I bought them too.  I also ordered a carb for the DC 65  and hope to have that in a corsair at the Nats.

You are very right on the practice part last year I was just over a 5 min low because I was going out and flying about once a week and now I'm lucky if I can get anywhere near the 4 min mark.  I have also had some problems with keeping airplanes together.  But my new spearfish should be pretty competitive especially now that I got my engine back from Henry today.

I know some of the pylon guys out here so I hope to have a couple of the long strokes next year to play with. I forget the guys name but someone bought all of the parts and castings for Henrys long stroke and they are going to start making them again.

     I, like you always am thinking about that 5 min LS and so far I think I made it up to around 4.5 min but its been rare so far. But we do want to be ready don't we. I have a tank on my profile F2G-1 that holds a little over 5oz (maybe 5.25) and so far I usually have to take out 1.5 to 2oz after the last flight and sometimes more depending on I guess altitude, temperature, and how wet the engine is running. I do try to set up to run just a hair wet (rich) on all my carrier flights, but only a hair as I have found the Nelson (my Nelsons) tend to load up if I throttle back and keep it there to long like when I'm transitioning from HS to LS. Once it in the LS hang I'm at around 70% power so don't worry about it loading up then. Be sure you are running the big hole plug (the hole the element is in is larger than the regular plug) as they allow much more leeway in the low RPM parts of the event.
     With the CL-1&2 planes I run or am planning to run on pressure so those tanks hold an ounce more than the profile tank. Understand that I run a Nelson 40 in CL-1 and a Nelson 45 in CL-2 so they are very close to using the same amount of fuel. I'm afraid I haven't done all that well in the LS section of those two events but I'm ready if they should ever come around. I think Pete Mazur's CL-2 plane has a 10+oz tank and uses just about all of it (.65 engine) when he puts in a good flight which is just about all the time. There are times when I just don't fill the tanks all the way up, like when my syringe only holds 5oz and I'm in a hurry or just plain lazy. Hope this helps, Eric.

     Sounds good to me. My advice or what I do is go easy, don't rush ANYTHING, make conservative changes, and practise, practice, practise. The more you play with your plane (flying it) while feeling it out the more sure of that plane you will be and after while you will know it like the back of your hand. I've never lost a plane in spite of several of them being a little twitchy, the only way I can get rid of them is hand them down. Then I get to watch them come back to place higher than me, its all fun.  Eric