Welcome to the home of Precision
on-site propeller balancing and vibration analysis for UAVs, drones, autonomous aircraft, both civilian and military
is where you can find the most precise, accurate analysis and balancing
of your propeller/motor combination. We're a mobile service and will travel to your company or to
an airport conveniently nearby. We're fully insured to work on UAV/drone power units and that is our specialty.
Our technician's hands-on aviation technical experience spans almost 50 years and a wide range of aircraft from cold-war era jet fighters and bombers to modern airliners and general aviation (GA) propeller-driven aircraft. A concurrent career in both electronics and software design spanning more than 35 years have added diagnostic and problem-solving skills second to none. Click here to see a few of the aircraft he has years of experience with ...
No more balancing for GA aircraft
We no longer perform balancing on general aviation aircraft (Cessna, Piper, Beech etc). However, havng successfully balanced well over 600 of these GA aircraft, over a 14 year span, we have a wealth of knowledge about the intricacies and tricks and traps associated with both static and dynamic balancing. We've seen all the different situations that can cause vibration in power units and propellers.
Why specialize in UAVs, drones, autonomous aircraft?
Because this is the new wave of aviation - a rebirth of aviation in another form - autonomous aircraft delivering cargo and people where they need to go without the need to first travel to an airport. It is exciting and we enjoy the challenge that this type of technology brings and are uniquely qualified to solve the special vibration problems that come with these versatile aircraft.
The next several paragraphs will give you a quick overview of diagnosis and balancing....
Why are typical UAV/drone propellers more challenging to balance?
Unlike those regular, fixed-wing aircraft, which cruise at about 2400 RPM, drones and UAVs are more difficult to balance because, for example during hover, the speed of each motor is constantly varying through a wide range of speeds in order to maintain a level attitude.
It takes many runs to bring the imbalance of each UAV or drone motor and prop down to close to zero. It also takes many judgements by a skilled expert during these runs in order to get these propellers to be in balance throughout their wide speed range.
So it's nothing like balancing the propellers of regular aircraft, where there is a steady cruise speed at which we need to have a smooth motor and prop. Dynamic balancing propellers on UAVs, drones, autonomous aircraft requires that the person doing the balancing be expert at tricking the assembly into complying.
Why is it so difficult to diagnose and fix the vibration?
Because vibration comes from a variety of sources and is difficult. but not impossible, to cure.
Just looking at a mass imbalance, for example, when you apply a corrective weight to the propeller hub this weight is only good for a specific narrow range of RPMs.
For example, putting a 12 gram weight somewhere on the hub might be the perfect amount of balancing weight at 2000 RPM but it could easily be too much or too little at a higher RPM. Also there will often be not just one but several mass imbalances around the hub, each requiring a corrective weight. These can and will interact with each other to give you a
situation that is very difficult to resolve - unless you've seen hundreds or thousands of these and have developed the skills to get around the laws of physics enough to make the propeller assembly useable for your purposes.
First, however, the various sources of vibration must be clearly identifed and each must be remedied differently....and that's where we are head and shoulders above any other propeller balancing company.