Engine mounting position ?
 

What are the advantages and disadvantages other than the obvious mounting engine inverted, or 90 degrees on its side.
I was told by several club members that have been flying
for many years to avoid mounting the engine inverted.
Hard to start, flooding problems, glow plug not in convienent
location, etc., etc, etc.

I have a new plane that I currently have a .40 engine mounted
upright but am installing a tt46 and would like to mount it
on its side so I can install the cowling that came with the plane
but if I do this I will have to have either a extension to the muffler
or buy and install a pitts muffler. Any suggestions?

We have lots of planes at our club that have the engine mounted
on its side and they all seem to perform very well with no
more problems than the upright mounted engines.

Also if I decide to install a mousse can muffler and mac header
combination is there any special extension needed for
clearence to the fuse with engine mounted on its side?

Mapper

Engine mounting position ?
 

Everything you said is correct. The inverted engines can be a handful at times.

The side mounted engines don't seem to be any more problem than a upright one.

You must observe the rule about keeping the tank center line at the spraybar level or in the case of a sideway's engine, the level of the tank must be centered with the carb venturi.

Enjoy,

Jim

Engine mounting position ?
 

This is a good post! Very relevant!

After having dozens of models with engines mounted in every conceivable orientation.....I would say the side mount is perhaps the preferred method for me.

Easy to route the exhaust under the model. Easier to get the carb/tank centerline in alignment. The cylinder never acts as a sump to cause flooding/starting/loading up problems.

Nobody mentions the effect of G's on loading up an inverted engine in flight...it happens!

Side mount seems to work real well.

'Race

Engine mounting position ?
 

Thanks w8ye and racecity for the information

Mapper