Balance masters test in flight
in 912 / 914 Technical Questions
10 years ago
Balance masters has arrived, ordered it in Spain.
The Spanish retailer is very conscientious and made everything possible for me to receive it rapidly.
Installation is done on the back of the spinner back plate.
After verification of propeller tracking, I ran the engine to heat it at the right temperature with a little high idle setting.
At this stage, I didn't really notice any change and I was thinking at the amount of money spent.
Once the engine at temperature, I pushed the throttle up to 4000RPM then 2 to 3 seconds later, vibes just suddenly calmed down and the engine was running very smooth.
On take-off, engine is running very smooth.
I can say that with balance masters, the engine is way more smooth.
Carburetors balance has been meticulously done.
I had a vibration at 3000RPM in flight on my 912ULS, vibe is now almost totally gone.
After change of RPM, it takes around 2 to 3 seconds for the system to do his job properly. Changing RPM smoothly is a necessity, and I was doing this before installation of the balance masters.
For more detailed results, it would be nice to install some accelerometers in flight and measure the vibes (an iPhone is not a measuring system at all), but if you're use to your aircraft, it's easy to feel the difference and the decrease in vibrations in the engine system.
Everything started for me by the detection of cracks on the exhaust, probably caused by an excess in vibes of the engines and (or) the exhaust.
I don't regret to have bought it and hope to have enlightened the questions of some people interested in it.
some pics of my installation on an Evektor Sportstar LSA (Eurostar in France)
The Spanish retailer is very conscientious and made everything possible for me to receive it rapidly.
Installation is done on the back of the spinner back plate.
After verification of propeller tracking, I ran the engine to heat it at the right temperature with a little high idle setting.
At this stage, I didn't really notice any change and I was thinking at the amount of money spent.
Once the engine at temperature, I pushed the throttle up to 4000RPM then 2 to 3 seconds later, vibes just suddenly calmed down and the engine was running very smooth.
On take-off, engine is running very smooth.
I can say that with balance masters, the engine is way more smooth.
Carburetors balance has been meticulously done.
I had a vibration at 3000RPM in flight on my 912ULS, vibe is now almost totally gone.
After change of RPM, it takes around 2 to 3 seconds for the system to do his job properly. Changing RPM smoothly is a necessity, and I was doing this before installation of the balance masters.
For more detailed results, it would be nice to install some accelerometers in flight and measure the vibes (an iPhone is not a measuring system at all), but if you're use to your aircraft, it's easy to feel the difference and the decrease in vibrations in the engine system.
Everything started for me by the detection of cracks on the exhaust, probably caused by an excess in vibes of the engines and (or) the exhaust.
I don't regret to have bought it and hope to have enlightened the questions of some people interested in it.
some pics of my installation on an Evektor Sportstar LSA (Eurostar in France)
Weight.JPG (You do not have access to download this file.)
Install1.JPG (You do not have access to download this file.)
Install2.JPG (You do not have access to download this file.)
