2020 TOYOTA RAV4

Image
Right about the time I’d passed 30 miles of all-electric driving with the RAV4 Prime plug-in hybrid, I knew this experience was going to be different. There was plenty of charge left.  With an expected EPA-rated 42-mile range from a big 18.1-kwh battery pack, the RAV4 Prime promises to transport commuters to work and back again without tailpipe emissions or the need to find another charge along the way. And then it becomes a 38-mpg hybrid after running through the charge, That and the Prime's suggested availability across the U.S., not just in California or a few select states, means it picks up right where the Chevy Volt left off .  Even better, it is the hottest crossover in these crossover-crazy times. The RAV4 is not only the top-selling SUV in the U.S. market for three years; the RAV4 Hybrid was also the top-selling hybrid in America last year—handily outselling the Toyota Prius.  The Prime finally checks nearly all the tech and special-needs boxes....

Why most of the planes are white?

From helping to keep aircraft cool to minimising bird strikes, here are four reasons commercial aircraft are almost always this colour.
Every airline has branding on its planes, but for the most part all planes are painted white.
Why? The light color reflects sunlight and solar radiation while the plane is in flight and keeps the cabin cool. “It’s basically like putting sunblock on”.
Why are most planes white? It’s not their natural color. Companies use over 65 gallons of paint per plane. But why?
The main reason why aircraft are painted white or light colors is to reflect sunlight and minimize both the heating and any potential damage from the solar radiation. It’s basically the same as putting sunblock on. For example, on a sunny day if you’re wearing a dark-colored shirt, you’ll heat up more than if you will if you’re wearing a white-colored shirt.
A cooler plane means cheaper cooling costs for airlines. But it’s not just about saving money. 
The most important parts to keep a light color and protected from the sunlight are the parts that are plastic or composite materials. Carbon fiber, fiberglass, et cetera. Those tend to be the nose cone, which needs to be transparent because there’s a radar behind it so that’s a plastic material. And also, often in modern airplanes the control surfaces are made out of composite materials. So, they’ll normally be painted either white, or sometimes they’ll be painted a light grey color. 
However, don’t let this ruin your opinion of colorful planes.
There’s nothing wrong necessarily with painting an airplane a color. Another thing that tends to happen with the paint is, over time it will oxidize. So, if you’re painting something red, after a while when it’s exposed both to the sun and also environmental conditions, it’ll tend to kind of whiten up a little bit anyway ’cause of oxidization. Some airlines, historically, have tried to use no paint at all. So, for a long time American Airlines had their airplanes just as metal-colored so that they didn’t have any protection, and again, it’s not a big deal for the metal parts. Problem is that those airplanes would start to tarnish over time so they had to spend time and money to polish them frequently. So, most airlines now have gone to light-colored paint airplanes.  

Here are a few reasons why.

1. It reflects sunlight.

The main reason why aircraft are painted white or light colours is to reflect sunlight. Other colours will absorb most of the light. This is crucial as when sunlight is absorbed by an aircraft, this heats up the body of an airplane.
Painting a passenger plane white minimises both the heating and potential damage from solar radiation not only when the airplane is in flight, but also when it’s parked on the runway.

2. It doesn’t fade.

When flying at high altitudes, airplanes are completely exposed to various atmospheric conditions. Coloured aircraft tend to fade over time, and thus require repainting to maintain their aesthetic appeal. Aside from the fact that paint adds significant weight to an aircraft –meaning more fuel is burned – the paint itself costs money, too.
On the other hand, an airplane that is painted white or a light colour doesn’t appear significantly different even after spending a significant amount of time in the air.

3. It allows signs of damage to be detected more easily.

For obvious safety reasons, commercial aircraft are regularly checked for forms of surface damage such as cracks and dents.
Nothing works better than white paint as these dents, oil spills and other faults are almost always darker than white, allowing them to be identified and repaired swiftly.

4. It reduces bird strikes.

A bird strike is defined as a collision between a bird and an aircraft which is in flight or one that is taking off, landing, or in low altitude flight. Bird strikes are common and can be a significant threat to aircraft safety.
White exteriors can enhance aircraft visibility and potentially increase its detection and avoidance by birds. Darker aircraft colour schemes, on the other hand, could possibly reduce the contrast between aircraft and the visual background. In turn, this may reduce the ability of birds to detect aircraft in sufficient time to avoid collision.

Comments

Popular posts from this blog

TRITON H: Electric suv, 700 miles range

RANGE ROVER EVOQUE PHEV(plug-in-hybrid vehicle) P300e

NASA REVEALS ABOUT X-57 ELECTRIC AIR PLANE