Muffler Positioning...How critical?
 

I have a nexstar with a SuperTigre 40 and a straight Tuned Muffler. Every run I cover the side of the plane with oil, can I tip the muffler down to clear bottom of plane. Or is that not recommended?

RE: Muffler Positioning...How critical?
 

You can tip it down.

RE: Muffler Positioning...How critical?
 

You can also use an exhaust diverter on it. They are extensions that put the exhaust into the airstream a bit farther away from the airplane.

Sometimes where you point the exhaust works wonders. And sometimes just a bit further out is enough.

RE: Muffler Positioning...How critical?
 

Thanks, didnt know if it would push up nose to fast or screw up air flow.

RE: Muffler Positioning...How critical?
 

The diverters work great. I had a homebuilt where the plane was soaked w/oil... I installed a diverter, and I basically did not have to clean the plane after each flight anymore. A little Fantastic, adn in the back of the Suburban it went... :D

RE: Muffler Positioning...How critical?
 

http://www3.towerhobbies.com/cgi-bin...&I=LXL378&P=ML

RE: Muffler Positioning...How critical?
 

I use a deflector on my Alpha trainer, and it does a great job of keeping oil off the plane. On my Four Star, I have actually run a plastic tube from the muffler and tie-wrapped it to the landing gear. I took out the muffler baffle to compensate for the added resistance, and it works and sounds great (OS 46LA).

I am putting a Super Tigre 45 on my current build. Those mufflers are pretty bulky. I would expect to get some resistance from it if it is tipped too far. I am planning on a deflector for that as well.

RE: Muffler Positioning...How critical?
 

I am getting one for my trainer, it gets soaked in oil.

RE: Muffler Positioning...How critical?
 

A tip for you folks using (or planning to use ) exhaust diverters.

The diverters have a NASTY habit of coming off (usually in flight ) and being lost.

Take a Dremel OR a small triangle shaped file and cut 2 shallow grooves all the way around the exhaust nipple on the muffler.
When you put the diverter on the muffler, use a small hose clamp to secure it in place instead of the plastic zip-tie.
The hose clamp wil force part of the diverter into the grooves and prevent it from falling off.

RE: Muffler Positioning...How critical?
 

Good idea Campy. http://www.bassfishingworld.com/ecomotions/cup.gif

RE: Muffler Positioning...How critical?
 

I agree with Rock. I have used diverters for exactly what you want to correct. They are inexpensive, very light and don't add weight and can be set up without altering your existing muffler.