What is the main theory of lift called?
“Equal Transit” theory, also known as the “Longer Path” theory, states that because aerofoils are shaped with the upper surface longer than the bottom, air molecules that pass over the top of the aerofoil have further to travel than underneath.
Is Bernoulli’s principle correct?
Bernoulli’s principle is then cited to conclude that since the air moves slower along the bottom of the wing, the air pressure must be higher, pushing the wing up. However, there is no physical principle that requires equal transit time and experimental results show that this assumption is false.
What is the lift formula?
The lift equation states that lift L is equal to the lift coefficient Cl times the density r times half of the velocity V squared times the wing area A. The combination of terms “density times the square of the velocity divided by two” is called the dynamic pressure and appears in Bernoulli’s pressure equation.
What is the principle behind the uplift of an Aeroplane?
The faster an airplane moves, the more lift there is. When the force of lift is greater than the force of gravity, the airplane is able to fly, and because of thrust, the airplane is able to move forward in flight. According to Newton’s third law of motion, the action of the wings moving through the air creates lift.
What is back pressure in aviation?
Back pressure increases the angle of attack, which decreases airspeed. This decreases any additional power required to maintain steady flight as long as decreased airspeed is acceptable. In essence, we trade airspeed energy to hold altitude when pulling in a turn.
Do engines need back pressure?
Many car enthusiasts interpret exhaust pressure as exhaust backpressure, and according to many, this backpressure is essential for an engine to make peak power
What are the 4 left turning tendencies?
Torque, spiraling slipstream, P-factor, and gyroscopic precession are commonly referred to as the four left-turning tendencies, because they cause either the nose of the aircraft or the wings to rotate left
How much back pressure does a catalytic converter create?
Most stock exhaust systems will show backpressure readings from 4 to 8 psi (27 to 55 kPa), or even higher. As before, if the backpressure reading is unusually high or it continues to climb at a steady rpm, it usually means there is an abnormal restriction causing an unhealthy increase in backpressure.
Will straight pipes hurt my engine?
a race car style exhaust system is a bad upgrade for a street vehicle. A straight pipe, for example, can cause exhaust gas velocity to increase. This will likely reduce engine performance below 2,000 or 2,500 RPM, making your vehicle a little slower to launch from a stoplight.
Will removing the catalytic converter make exhaust louder?
Since the catalytic converter works to decrease the effect of the gases emerging from the engine, it can also muffle the sounds of the exhaust together with the vehicle’s muffler. With it removed, you will get to experience a low-pitched, louder, and a more distinctive exhaust sound
Can I unclog my catalytic converter?
You will be able to clean your catalytic converter, so long as it is not overly clogged. If it is so clogged the engine won’t run at all, then you will probably have to replace it. You may be able to find a mechanic who specializes in your make and model of car who can unclog such a converter
Can I put Cataclean in full tank?
Cataclean is safe for both petrol and diesel engines, you don’t have to buy different versions for each fuel type. One bottle does both. Ideally we should have let the tank go down a bit more before using it, Cataclean recommend using it in 15 litres of fuel or 1/4 of a tank
What happens if I don’t replace my catalytic converter?
When the converter first starts showing signs of failure, it will not immediately affect the engine. Left unchecked, however, it will eventually degrade and collapse, plugging the exhaust, which will choke vehicle performance and limit the life of the motor
What are the signs of a failing catalytic converter?
Among the symptoms of a bad catalytic converter are:
- Sluggish engine performance.
- Reduced acceleration.
- Dark exhaust smoke.
- The smell of sulfur or rotten eggs from the exhaust.
- Excessive heat under the vehicle.
Can you drive with a faulty catalytic converter?
A Catalytic Converter Can Be Driven Indefinitely Driving with a bad catalytic converter is not too dangerous. If some small parts of your catalytic converter is plugged, you can still drive your car as usual. In the case that the catalytic converter is totally plugged, it will prevent you from running your vehicle.
Can a car run without a catalytic converter?
A vehicle will run just fine without a catalytic converter. Its purpose is to reduce emissions though a catalytic conversion process (hence the name). A vehicle without a converter will produce more emissions that are considered to be harmful or at least less desirable than a vehicle with a converter will produce.
What are the 3 most leading failures of a catalytic converter?
Most catalytic converter failures fall under one of three categories: Overheated, melted or broken converters. Coated/oil-fouled substrate.
Will a new catalytic converter improve performance?
The catalytic converter is built into the vehicle’s exhaust system, and as a result, can affect the performance of the engine if it develops any problems. Increased Horsepower Cars that have their catalytic converters removed experience an increase in engine horsepower
What makes a catalytic converter worth money?
Catalytic converters contain platinum-group metals that are very price efficient, making it a premium item to purchase for recycling companies. Catalytic converters are made up of numerous precious and valuable metals, including palladium, rhodium, platinum
Can a water damaged catalytic converter?
Even water getting in the tailpipe can cause serious damage. The catalytic converter can be ruined — a $1,000 repair — and it may not be noticed until failing an emissions test
Can Fuel Additives damage catalytic converter?
A similar thing will happen if fuel additives are used that are not suitable for use with a catalytic converter. The most common cause is unburned fuel entering the catalytic converter. Also faulty spark plugs and leads will cause the engine to misfire and ruin the catalytic converter.
What is the best way to clean a catalytic converter?
Catalytic converter cleaner is sold in 16-ounce cans with one primary way to use it. The best way to clean your converter is to pour the contents into your gas tank and drive until close to empty to ensure this chemical has been well used up. Step-by-step cleaning process: Pour bottle of Cataclean into tank.
Does seafoam clean catalytic converters?
While the popular Sea Foam treatment won’t clean your catalytic converter, it treats the problems prior to that which cause the converter to get clogged up in the first place. Many individuals have actually had fault codes related to the catalytic converter go away after using.
Is seafoam bad for your engine?
Seafoam in your crankcase is bad because when you pour it in with your oil it not only thins out your oil so it no longer has the same protecting properties it had before you poor the seafoam in it also loosens a large amount of gunk at one time and can clog your oil pick up causing the engine to be starved of oil it ..
Does seafoam damage o2 sensors?
There are no true oxygen sensor cleaners that are safe to put through your engine. Sea Foam Motor Treatment only contains organic petroleum ingredients. It does NOT have harsh detergent or abrasive chemicals that can harm your engine or fuel system components
Which catalytic converters are worth the most money?
Which Catalytic Converters Are The Most Expensive? According to data from 2020, the most expensive catalytic converter belonged to the Ferrari F430, with a mind-popping $3,770.00 price tag. Moreover, the F430 needed two of them, so a full replacement would run car owners $7,540 before labor costs