# What Does Positive Rate Gear Up Mean

### Why do pilots wait for a positive rate to put the gear up ...

Because just you are committed, doesn't mean you're already flying. After V1, you still have to reach the speed of rotation, actually rotate and take flight. Positive rate is a call that the airplane is flying and climbing out of the runway. Only at that point are you sure that the gear can be safely retracted. More Information

### Positive rate of climb - askacfi.com

Once the airplane is clearly climbing and not likely to settle. I use either visual indications or the VSI going from negative or zero to indicate a positive value on a missed approach, go around, or takeoff. My mantra on a missed approach is power, pitch, positive rate, gear up. More Information

### Opposite To "Positive Climb, Gear Up"? - Airliners.net

Saying "positive rate" (apart from most likely being a company procedure) is really there as confirmation to yourself and the person in the other seat that you've visually established a RoC before selecting gear up. More Information

### What is COVID-19 positivity rate? Explaining a commonly ...

Positivity rate refers to the percentage of all COVID-19 tests that come back positive. It offers a different perspective on coronavirus transmission than simply looking at daily case totals. More Information

### Positive Displacement Pump Basics - Fristam

uct’s flow rate (75 gpm) on the “Flow Rate vs. Shear Rate” curve for tubing. 2. Draw a line to the right until it intersects the 3” tubing diameter. 3. Follow the line down to find the shear rate. Shear rate=125 4. Find the shear rate on the “Vis-cosity vs. Shear Rate” curve for the product. 5. Move up until you intersect the line. 6. More Information

### COVID-19 Testing: Understanding the “Percent Positive ...

Does a low percent positive mean that a population has herd immunity? No. A low percent positive simply means that the level of coronavirus transmission, relative to the amount of testing, is low at this point in time. As of July 2020, it is unlikely any country (or U.S. state) is close to achieving herd immunity. Places that have low percent ... More Information

### What is Gear ratio? [How to calculate Gear Ratio with Formula]

The gear ratio is the ratio of the number of turns the output shaft makes when the input shaft turns once. In other words, the Gear ratio is the ratio between the number of teeth on two gears that are meshed together, or two sprockets connected with a common roller chain, or the circumferences of two pulleys connected with a drive belt. More Information

### V Speeds - Aircraft Velocities Explained! - Pilotstories

Simple as that: As soon as the Primary Flight Display (PFD) shows a positive rate of climb. The pilot not flying calls “positive rate”. Thereupon, the pilot flying orders “gear up”, what is then executed by the pilot monitoring. More Information

### Understanding 'Pounds of Buoyancy' of ... - H2O Rescue Gear

What does that mean?" A buoyant apparatus is anything that can float and hold up weight. For instance, if you had a Type I PFD that is required to have 22 pounds of buoyancy, it would be capable of supporting 22 pounds of dense material such as lead, iron, gold, granite, etc. More Information

### What does the coronavirus percent-positive rate mean? - CNN

When the percent positive rate in your area is 58%, that does not mean that 58% of the population has Covid-19. It mostly means that 58% of the population who got a test actually had Covid-19. Not ... More Information

### How to Read a Pump Curve: Complete Guide

Net Positive Suction Head (NPSH) in centrifugal and positive displacement pumps; For example, if you know the flow rate your application requires, you find the gallons per minute (or hour) rate along the bottom horizontal line of the curve and then draw a line up to the head/PSI you require. More Information

### Reciprocating positive displacement pumps

– Flow rate up to 100,000 m³/h – Temperature range from -130 °C to 300 °C – Viscosity up to 1,000 mPa·s; individual solutions are also possible 1.2.2 Rotary positive displacement pumps In positive displacement pumps, the mechanical energy of a displacer in a closed space More Information

### What is V1-Rotate

They usually say "positive climb" followed by "gear up", depending wether or not the plane has a retractable landing gear. So now that you know what V1 means and why I've chosen V1 as a domain name, I hope you'll enjoy your stay at 'V1-Rotate.com'. More Information