.15 big mig motor help??????????
08-11-2014, 09:09 AM
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.15 big mig motor help??????????
recently went to a garage sell purchased a box of rc goodies there was a complete .15 big mig , I bolted it on a p-51d mustang I built and the exhaust will not clear the plane if you flip it over it will hit the prop help would like to fly but I don't know what to do , do I need a new motor or do they makea exhaust manifold extender I have looked online and cant find any for the norvel motor
08-11-2014, 11:00 AM
#2
Try NVEngines.com They took over for Norvel and sell the engines now under the NVEngines brand.
You could also just stick on a short tube extender onto the exhaust outlet too.
You could also just stick on a short tube extender onto the exhaust outlet too.
Last edited by earlwb; 08-11-2014 at 11:02 AM. Reason: typo correction
08-11-2014, 11:10 PM
#4
I haven't seen any exhaust extenders for the Norvel .15 engines, I think it would be a bit unstable with the spring clamp. These engines targeted the combat market and the idea was that nothing should brake after a gentle impact (prop stud is replaceable etc).
Best option is to rotate the engine for a better clearance or direction of the exhaust. anything from upright to 90° usually works fine, avoid inverted though unless you have previous experience from that. Here is an example with 90° rotation in a Zlin 50;
Best option is to rotate the engine for a better clearance or direction of the exhaust. anything from upright to 90° usually works fine, avoid inverted though unless you have previous experience from that. Here is an example with 90° rotation in a Zlin 50;
08-12-2014, 04:18 AM
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okay i see , well i actually cut the side of the fuselage and made my exhaust work i used a pop can to go in behind the exhaust it made a nice look , i will post pics of this build or should i say mess when im done
08-12-2014, 01:16 PM
#6
It is quite common for people to angle the engine at say 45 degrees, 135 degrees, 225 degrees, or even 315 degrees as well as usng a odd angle too. That usually gets the muffler to just clear the fuselage in some cases too. You do not have to go with straight up, straight down or to the side at 90 degrees when mounting a engine.
