IFR (Instrument Flight Rules) and VFR (Visual Flight Rules) are two different sets of rules that pilots use when flying. VFR is used when the weather conditions are clear, allowing the pilot to navigate and control the aircraft by visual reference to the ground and other landmarks. IFR is used when the weather conditions are poor, requiring the pilot to rely on the aircraft's instruments for navigation and control. In essence, VFR is used in clear weather conditions, while IFR is used in poor weather conditions. **

In Flight Simulator 2020, you may not be able to start an IFR (Instrument Flight Rules) flight for a few reasons. One possible reason is that your aircraft may not be equipped with the necessary avionics and instruments to fly under IFR conditions. Another reason could be that the departure airport or the weather conditions may not be suitable for IFR flight. Additionally, you may need to set up your flight plan and communicate with air traffic control to fly IFR, and if these elements are not properly configured, you may not be able to start an IFR flight. **

Yes, it is allowed to change the route during an IFR (Instrument Flight Rules) flight. Pilots can request route changes from air traffic control (ATC) for various reasons such as weather avoidance, traffic separation, or to optimize the flight path. ATC will then provide the necessary clearances and instructions to the pilot to ensure a safe and efficient route change. It is important for pilots to communicate with ATC and follow their instructions when making route changes to maintain the safety and integrity of the airspace system. **

Yes, airplanes can fly under Instrument Flight Rules (IFR) without having an Instrument Landing System (ILS) on board. ILS is just one of the many navigation aids available for IFR flights, and there are other systems and procedures that can be used for navigation and approach in low visibility conditions. These include GPS, VOR, NDB, and RNAV approaches, as well as other non-precision approaches. Pilots can also use radar vectors from air traffic control to guide them to the runway without relying on ILS. **

Yes, piercings are considered a fashion trend. Over the years, piercings have become a popular way for people to express their individuality and personal style. From ear piercings to nose, lip, and body piercings, they have become a common form of self-expression and a way to enhance one's appearance. Many people view piercings as a fashion statement and use them to accessorize and complement their overall look. **

It is difficult to determine if something is a fashion trend without more specific information about what is being referred to. Fashion trends can vary widely and can be influenced by a variety of factors such as popular culture, social media, and celebrity endorsements. Without more context, it is challenging to definitively say whether something is a fashion trend or not. **

No, circumcision is not a fashion trend. Circumcision is a cultural, religious, or medical practice that has been performed for thousands of years in various societies around the world. It is not a passing trend, but rather a deeply rooted tradition with significant historical and cultural significance for many communities. While there may be fluctuations in circumcision rates over time, it is not accurate to categorize it as a fashion trend. **

As an AI, I don't have personal preferences or the ability to follow fashion trends. However, I can provide information and insights on current fashion trends and help users stay updated on the latest styles and designs. Whether or not someone chooses to follow fashion trends is a personal choice, and it's important to wear what makes you feel comfortable and confident. **