Pros and Cons: Analyzing Aircraft Grease Alternatives
Jan 3rd 2024
Your aircraft has a lot of moving parts and it's important to keep those parts well lubricated to maintain precision and safety. Aircraft lubricants not only keep components moving smoothly, but they also help prevent friction, promote heat dissipation and prevent buildup that can cause damage. Different greases and lubricants are used all over the aircraft, not just in the engine. You can find greases and lubricants in components like wheel bearings, landing gear and even control mechanisms.
Like with all industries, the aviation world has evolved. Standard lubricants have been replaced with synthetics, offering the same level of lubrication, but with small enhancements that make your aircraft run more efficiently. Synthetic greases and lubricants can often handle higher loads and last longer than standard aircraft greases without drying out or attracting debris. Of course, there are some drawbacks to using synthetic grease, so it's important to consider all of the pros and cons before choosing a product for your aircraft.
Lubrication in Aviation
Greases and lubricants play an important role in aviation. Designed to fight friction and keep metal surfaces from touching, greases and lubricants are used in just about every major component of the aircraft. A major part of aircraft maintenance is simply inspecting areas for proper lubrication and adding more grease if needed. In the never-ending quest for improvement, many aircraft manufacturers and technicians have switched to synthetic greases for improved performance and durability.
Traditional Aircraft Grease
Not all greases are created equally. Some are intended specifically for use in aircraft and these types of greases are known as aviation grease. Aviation grease can withstand the elements while providing a high level of protection against friction and corrosion. Aviation grease tends to be semisolid and when applied, forms a protective barrier on the surface. Because airplanes are exposed to the elements during flight and can encounter extreme fluctuations in temperatures and pressures, aviation grease is specifically formulated to hold up under these challenging conditions.
Aviation grease has many applications and can help reduce the friction of moving parts, allowing them to move smoothly and reducing the risk of friction-related damage. Most aviation greases also have additives that protect against corrosion by preventing oxygen from reaching metal parts. The grass covers the metal parts so they are not directly exposed to oxygen in air or water, thereby preventing corrosion.
While traditional aviation grease offers reliable protection and is semisolid for application in a variety of areas of the aircraft, it has some limitations. Traditional aviation greases can break down over time, leaving parts vulnerable to friction and oxidative damage. It can also attract dirt or debris, trapping it in place and clogging sensitive engine components. To combat these problems, many aviators have turned to synthetic greases.
Aircraft Grease Alternatives
Many aviators have turned to synthetic greases in the quest for better performances and reduced costs. Alternative lubrication solutions with better additives and longevity mean decreased costs, both initially and over years of service. While price is always a driving factor behind change, the improved performance of synthetic greases and reduced downtime also makes synthetic an attractive alternative to traditional greases and lubricants.
Not all lubrication needs are the same and not all synthetic greases are the same either. There are several alternative lubricants available including solid lubricants, dry film lubricants and liquid formula synthetic lubricants. No matter which type of lubricant you choose, make sure you pick one that is safe for the environment in which you work. The aviation industry has a growing concern for the environment and as a result, more lubricants are being made from eco-friendly materials than ever before. Choosing an eco-conscious lubricant will ensure that any spills or runoff don't negatively impact the environment around you.
Pros of Aircraft Grease Alternatives
There are many reasons why an aviation professional may choose a synthetic grease alternative for their aircraft. Some of the pros of choosing a grease alternative include:
- Reduced Weight: Grease alternatives are often lighter than traditional petroleum-based greases. That means they add less weight to the aircraft and offer a small increase in fuel efficiency.
- Improved Longevity and Performance: Synthetic greases offer the potential for improved longevity and an extended service life, which means less maintenance expenses and reduced downtime. High-performance formulas also improve efficiency and reduce maintenance needs by removing contaminants.
- Reduced Maintenance: A longer-lasting grease means reduced maintenance and simplified maintenance schedules. Long-lasting synthetic grease can lead to reduced downtime and fewer maintenance costs for noticeable savings.
- Environmental Benefits: Petroleum-based greases are bad for the environment, but many synthetic greases are made from eco-friendly materials that are safer to use and won't contaminate the environment if spilled or washed off the aircraft.
Cons of Aircraft Grease Alternatives
While there are many pros to using a grease alternative, there are also a few cons that you should be aware of before making the switch. Some potential downsides include:
- Compatibility Issues: Synthetic greases aren't suitable for use in all aircraft systems. There are several challenges related to the compatibility of alternative lubrication methods with existing components, systems and aviation coatings.
- High Cost: Synthetic lubricants cost more than traditional greases, leading to a higher initial cost. These upfront costs can be prohibitive, though synthetic lubricants usually wind up costing less in maintenance in the long run.
- Difficult to Apply: Alternative lubricants can be difficult to apply depending on the type of lubricant and the location it is being applied to. Some types of alternative grease can also be difficult to inspect and maintain.
- Constant Improvements: Alternative greases are constantly evolving and improving over time, leading to the need for continuous research and monitoring to make sure you're always choosing the best, most advanced lubricant for your aircraft.
There are many options on the market when it comes to aircraft lubricants. Whether you choose a traditional grease or a grease alternative will depend on a variety of factors like your budget and where you plan to use the grease. There are pros and cons to making the switch to synthetic and by exploring them ahead of time, you can choose the right lubricant for your needs.