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Centre Of Gravity – Defintion, Examples, Experiment
Centre Of Gravity – Defintion, Examples, Experiment
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Center of Gravity
The center-of-gravity (CG) is the point at which an aircraft would balance if it were possible to suspend it at that point. It is the mass center of the aircraft, or the theoretical point at which the entire weight of the aircraft is assumed to be concentrated. Its distance from the reference datum is determined by dividing the total moment by the total weight of the aircraft. The center-of-gravity point affects the stability of the aircraft. To ensure the aircraft is safe to fly, the center-of-gravity must fall within specified limits established by the manufacturer
Center of gravity is calculated as follows:
•Determine the weights and arms of all mass within the aircraft.
•Multiply weights by arms for all mass to calculate moments.
•Add the moments of all mass together.
•Divide the total moment by the total weight of the aircraft to give an overall arm.
The arm that results from this calculation must be within the arm limits for the center of gravity that are dictated by the manufacturer. If it is not, weight in the aircraft must be removed, added (rarely), or redistributed until the center of gravity falls within the prescribed limits.
For the sake of simplicity, center of gravity calculations are usually performed along only a single line from the zero point of the reference datum, usually the line that represents the roll axis of the aircraft (to calculate fore-aft balance). In complex situations, more than one line may be separately calculated, e.g., one calculation for fore-aft balance and one calculation for left-right balance.
Weight is calculated simply by adding up all weight in the aircraft. This weight must be within the allowable weight limits for the aircraft.
The weight and moment of fixed portions of the aircraft (engines, wings, etc.) does not change and is provided by the manufacturer. The manufacturer also provides information facilitating the calculation of moments for fuel loads. Other removable weight must be properly accounted for in the calculation by the operator.
In larger aircraft, weight and balance is often expressed as a percentage of mean aerodynamic chord, or MAC. For example, assume that by using the calculation method above, the center of gravity (CG) was found to be 76 inches aft of the aircraft’s datum and the leading edge of the MAC is 62 inches aft of the datum. Therefore, the CG lies 14 inches aft of the leading edge of the MAC. If the MAC is 80 inches in length, the percentage of MAC is found by calculating what percentage 14 is of 80. In this case, one could say that the CG is 17.5% of MAC. If the allowable limits were 15% to 35%, the aircraft would be properly loaded.
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Overview
Recently, the United Arab Emirates created a new visa on arrival policy. It is highly regarded as a systematised version of entry for any kind of tourist and the visitor who comes from India as well. The purpose and intention of this was solely to boost tourism of UAE and make access even more easier for Indian people and nationals.
Important Points and Features of this Policy
The new policy provides a visa on arrival for 60 days with multiple entries for Indian passport holders. These are not pre-arranged visas, making it easier for Indians to travel.
Eligibility Criteria
To be eligible for a visa on arrival, an Indian traveller must meet all the following criteria:
- Valid Passport: A passport valid for at least six months.
- Return Ticket: There must be a confirmed return or onward ticket.
- Adequate Funds: The government may request proof of adequate funds for the period of the stay.
Travel Planning
The new visa policy offers a lot more ease and friendly conditions, but the traveller needs to keep in mind the following:
COVID-19 Guidelines: The current health and safety regulations, including requirements for vaccination and testing, should be researched prior to travelling.
Travel Insurance: Travel insurance is also essential since it provides the much-needed leeway in the case of unexpected events that may surface.
Conclusion
The new visa on arrival by the UAE for its Indian nationals is a pioneering step taken to encourage more relaxed travelling and tourism. This article is a continuation of Times Bull in as much as eligibility criteria as well as other travel information that are to be gained before visiting the country is concerned.
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Can those on a visiting visa renew their UAE Driving licence?
Can those on a visiting visa renew their UAE licence?
Dubai: Many people have doubts about whether they can renew their UAE license after returning home after staying in Dubai for many years and after a while on a visiting visa. But Ashish Mehta, the founder and managing partner of Ashish Mehta and Associates, cleared the doubts in this regard. He answered this doubt of many people in Khaleej Times.
Your UAE driving license is issued by the Dubai Roads and Transport Authority when you reside in the UAE. But by law, the person must be a resident of the UAE to renew an expired UAE driving license of an expatriate above the age of 21.
Moreover, when applying for renewal of UAE driving license one must submit his original valid UAE Resident Identity Card, eye examination by an institution approved by the local authority and the relevant renewal fee to the RTA.
Also, if a person’s UAE driver’s license has not been renewed for more than ten years, he may be required to undergo a validation test to open a training file.
Along with this one has to pay application fee, handbook manual fee, RTA test fee, penalty for not renewing driving license on time, renewal fee and renewal fee to RTA for renewal of expired UAE driving license.
However, a non-resident cannot get a license. Application will not be accepted without UAE Resident Identity Card. Meanwhile, those who came on residence visa and not on visiting visa can apply.
For further clarifications on this matter, you may contact RTA
Courtesy: khaleej Times
India
MyAadhaar: A User-Friendly Website For Aadhaar Services
MyAadhaar: A User-Friendly Website For Aadhaar Services
The myAadhaar website is a one-stop shop for all your Aadhaar-related services. You can use the website to download your Aadhaar card, update your Aadhaar details, and order a PVC Aadhaar card. You can also use the website to find the nearest Aadhaar Seva Kendra and book an appointment.
The myAadhaar website is easy to use and navigate. The homepage has a clear and concise layout, and all the important links are easy to find. The website is also available in multiple languages, making it accessible to a wider range of users.
One of the best things about the myAadhaar website is that it is secure. All your personal information is encrypted and protected by a password. You can also use the website to generate a 16-digit Virtual ID (VID), which can be used in place of your Aadhaar number for online transactions.
Overall, the myAadhaar website is a user-friendly and secure platform for accessing your Aadhaar services. If you need to update your Aadhaar details, order a PVC Aadhaar card, or find the nearest Aadhaar Seva Kendra, the myAadhaar website is the best place to do it.
Here are some of the features of the myAadhaar website:
- Download your Aadhaar card
- Update your Aadhaar details
- Order a PVC Aadhaar card
- Find the nearest Aadhaar Seva Kendra
- Book an appointment at an Aadhaar Seva Kendra
- Generate a 16-digit Virtual ID (VID)
- Validate the status of your Aadhaar
- Submit feedback
Here are some of the benefits of using the myAadhaar website:
- Easy to use and navigate
- Available in multiple languages
- Secure
- Convenient
- Saves time and effort
If you need to access your Aadhaar services, I recommend using the myAadhaar website. It is a user-friendly and secure platform that makes it easy to get the services you need.
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