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10 things you must know about Solar Impulse 2

10 things you must know about Solar Impulse 2

1. Flying Capacity : Solar Impulse is the only airplane of perpetual endurance, able to fly day and night on solar power, without a drop of fuel. Solar Impulse 2 will climb to 8,500 meters (5.28 miles) during the day, where it can reach its maximum speed and store more solar energy for the night. As dusk arrives, the plane will descend to an altitude of 1,500 meters (0.9 miles) where its speed slows and it’s easier to remain aloft.

2. Size : This revolutionary single-seater aircraft made of carbon fiber has a 72 meter wingspan (larger than that of the Boeing 747-8I) for a weight of just 2,300 Kg, equivalent to that of a car.

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Structure : build the entire structure proportionately 10 times lighter than that of the best glider. Every gram added had to be deducted somewhere else, to make room for enough batteries on board, and provide a cockpit in which a pilot can live for a week. In the end, it is of the weight of a small van: 2’300kg!

3. Battery : The 17,000 solar cells built into the wing supply four electric motors (17.5 CV each) with renewable energy.During the day, the solar cells recharge lithium batteries weighing 633 Kg (2077 lbs.) which allow the aircraft to fly at night and therefore to have virtually unlimited autonomy

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4. Motors : Four brushless, sensorless motors, each generating 17.4 hp (13.5 k), mounted below the wings, and fitted with a reduction gear limiting the rotation speed of a 4 m diameter, two-bladed propeller to 525 rev / min. The entire system is 94% efficient, setting a record for energy efficiency

5. Speed : Solar Impulse can fly at the same speed than a car, between 36 km/h (20 Kts) and 140 km/h (77 Kts).

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(At sea level: minimum speed of 45 km/h (20 Kts) and maximum speed of 90 km/h (49 Kts). At maximum altitude: from 57 km/h (31,5 Kts) to 140 km/h (77 Kts).)

6. Robustness :

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The upper wing surface is covered by a skin consisting of encapsulated solar cells, and the lower surface by a high-strength, flexible skin. 140 carbon-fiber ribs spaced at 50 cm intervals give the wing its aerodynamic cross-section, and also maintain its rigidity.

7. Simulation Training :

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long-duration round-the-world flights by training them on virtual missions in the flight simulator. The idea is to test their ability to endure three days and nights alone in a cockpit of less than 9ft x 5ft x 3ft at an altitude between 3,000ft and 27,000ft. André Borschberg came through the first 72-hour simulation in 2012 with flying colors.

8.World Record 

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Solar Impulse with Bertrand Piccard, broke the world records of distance and duration for solar aviation, as well as the world record for the longest solo flight ever (117 hours and 52 minutes — around 7,200 km, 4,474 miles).

  • Flight time: 117:52 hours\
  • Maximum altitude: 8,634 m (28,000 ft)
  • Average speed: 61.19 km/h, 38 mi/hr
  • Flight plan distance: 7,212 km, 4,481 mi

9. Solar Impulse 2 Project Plan: 

  • 12 years of feasibility study, concept, design and construction
  • 50 engineers and technicians
  • 80 technological partners
  • more than 100 advisers and suppliers
  • 1 prototype (Solar Impulse 1, registered as HB-SIA)
  • 1 final airplane
    (Solar Impulse 2, registered as HB-SIB)

10. Pilot food & Exercise: 

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The pilot’s daily intake is 2.4 kg (5.2 lbs) of food, 2.5 liter (84.5 oz, 0.66 US gallon, almost 3 US quarts) of water, and 1 liter (33.8 oz, 0.26 US gallon, 1 US quart) of sports drink per day. His meals include a breakfast, a lunch prepared to be as similar as possible to homemade meals, and snacks including dried fruits and chocolate.During a typical 24-hour flight cycle, the pilot rests 8 times, averaging between 5 and 20 minutes per session. Borschberg also performed yoga 30 to 45 minutes a day to stay fit and prevent any potential negative effects of immobility.

You wanna like to meet the Si2 team?  click here  

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He is an aviation journalist and the founder of Jetline Marvel. Dawal gained a comprehensive understanding of the commercial aviation industry.  He has worked in a range of roles for more than 9 years in the aviation and aerospace industry. He has written more than 1700 articles in the aerospace industry. When he was 19 years old, he received a national award for his general innovations and holds the patent. He completed two postgraduate degrees simultaneously, one in Aerospace and the other in Management. Additionally, he authored nearly six textbooks on aviation and aerospace tailored for students in various educational institutions. jetlinem4(at)gmail.com

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Airlines

US DOT says Airlines must now pay automatic refunds for cancelled flights

US DOT says Airlines must now pay automatic refunds for cancelled flights

The U.S. Department of Transportation (DOT) has released a final regulation requiring airlines to quickly reimburse passengers with automatic cash refunds when owed, according to a statement made by the Biden-Harris Administration.

Under the new regulation, passengers will find it easier to get refunds when airlines dramatically alter or cancel flights, cause severe delays for checked baggage, or don’t supply the additional services they paid for.

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According to a statement from the Biden-Harris Administration, the U.S. Department of Transportation (DOT) has published a final rule mandating airlines to promptly compensate customers with automatic cash refunds when they are eligible. The new rule would make it simpler for customers to receive refunds from airlines in cases when they drastically change or cancel flights, cause significant delays for checked luggage, or fail to provide the extra services they charged for.

Under the latest rule from the USDOT, passengers are guaranteed refunds in several scenarios:

  1. Canceled or Significantly Changed Flights: Passengers are entitled to refunds if their flight is canceled or significantly altered, including changes in departure or arrival times exceeding 3 hours domestically or 6 hours internationally, departures or arrivals from different airports, increased connections, downgrades in service class, or changes less accommodating to passengers with disabilities.
  2. Delayed Baggage Return: Passengers filing mishandled baggage reports can claim a refund for checked bag fees if their luggage is not returned within specific timeframes after flight arrival.
  3. Unprovided Extra Services: If airlines fail to deliver paid extra services like Wi-Fi, seat selection, or inflight entertainment, passengers can request refunds for those fees.

The final rule streamlines the refund process, ensuring it is:

  • Automatic: Refunds are issued automatically without requiring passengers to request them.
  • Prompt: Airlines must refund credit card purchases within seven business days and other payment methods within 20 calendar days.
  • In Original Form of Payment: Refunds are provided in the original payment method used for purchase.
  • Full Amount: Passengers receive full refunds minus the value of any portion of transportation already used, including government and airline fees.

Suggest banning family seating junk fees and ensuring that parents can travel with their kids at no additional cost. No airline promised to ensure fee-free family seating prior to efforts from President Biden and Secretary Buttigieg last year. Family seating is now guaranteed free of charge on four airlines, and the Department is working on a plan to eliminate family seating junk fees.

Propose to make passenger compensation and amenities mandatory so that travelers are taken care of when airlines cause flight delays or cancellations. 

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Airlines

The Nine Freedoms of the Air – Jetline Marvel

The Nine Freedoms of the Air - Jetline Marvel

Most of us travel from one city to another city via road we need to get permission to that specific city if it is in another country like a visa or Road access permission to use its property for revenue purposes to carry passengers and Cargo. Similarly, In the airline Industry, it is also important that the Company have permission to fly and access that country whether it’s for stoppage flying above them, or Operating the passengers within that country This is called Freedom of the Air.

Some countries together they agree with certain conditions to access their Aerospace for to access for the airline to travel above their nation. If the bilateral is done for Their own countries’ airlines or other countries’ airlines. In this chapter, we understand how this thing is carried out. What all the condition has to look into that.  

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The Freedoms of the Air are international commercial aviation agreements (traffic rights) that grant a country’s airline(s) the privilege to enter and land in another country’s airspace. They were formulated in 1944 at an international gathering held in Chicago (known as the Chicago Convention) to establish uniformity in world air commerce. There are generally considered to be nine freedoms of the air.

Most nations of the world exchange first and second freedoms through the International Air Services Transit Agreement. The other freedoms,chase freedom airline miles when available, are usually established between countries in bilateral or multilateral air services agreements. The third and fourth freedoms are always granted together. The eighth and ninth freedoms (cabotage) have been exchanged only in limited instances

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First Freedom:

The basic permission granted to an airline from one country (A) to fly through the airspace of another country (B)

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The Nine Freedoms of the Air - Jetline Marvel

Second Freedom:

The permission for a commercial airplane from country (A) to land and refuel (often called a technical stop) in another country (B).

The Nine Freedoms of the Air - Jetline Marvel

Third Freedom :

The privilege for an airline to transport paying (Revenue) passengers from its home country (A) to another country (B).

The Nine Freedoms of the Air - Jetline Marvel

Fourth Freedom

The rights for an airline to transport paying (Revenue )passengers from another country (B) to the airline’s home country (A).

The Nine Freedoms of the Air - Jetline Marvel

Fifth Freedom

Fifth Freedom (also known as beyond rights): The rights for an airline to transport passengers from its home country (A) to a destination (B), then pick up and carry passengers to other international destinations (C).

The Nine Freedoms of the Air - Jetline Marvel

Sixth Freedom:

Sixth Freedom (Combination of Third & Fourth Freedoms) The right for an airline to carry passengers or cargo between two foreign countries (B and C), provided the aircraft touches down in the airline’s home country (A).

The Nine Freedoms of the Air - Jetline Marvel

Seventh Freedom:

The authorization for an airline to operate flights that start in a foreign country (B), skip its home country (A), and transport passengers to another international destination (C).

The Nine Freedoms of the Air - Jetline Marvel

Eighth Freedom Air

The rights for an airline to transport passengers from one location within a country’s territory (B) to another point within the same country on a flight originating in the airline’s home country (A). This right is commonly referred to as cabotage and is notably scarce outside of Europe.

The Nine Freedoms of the Air - Jetline Marvel

Ninth Freedom Air

The entitlement for an airline from a specific country (A) to begin a flight in a foreign country (B) and transport passengers from one location to another within that foreign country. This concept, also referred to as stand-alone cabotage, distinguishes itself from the traditional aviation definition of cabotage by not directly involving the airline’s home country.

The Nine Freedoms of the Air - Jetline Marvel
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Aviation

Air India’s B747 Makes Its Final Journey, Waving Farewell to Fans

Air India's B747 Makes Its Final Journey, Waving Farewell to Fans

In a poignant moment marking the end of an era in aviation history, Air India’s iconic Boeing 747 aircraft, affectionately known as the ‘Queen of the Skies,’ embarked on its ultimate journey from Mumbai’s international airport.

The departure, bound for Plainfield, USA, where it will undergo dismantling and part-stripping under the ownership of American AerSale, signals the closure of a storied chapter for the airline.

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Once revered for transporting dignitaries ranging from prime ministers to presidents, the Boeing 747 has etched itself into aviation lore. Yet, as airlines worldwide pivot towards more contemporary and cost-effective aircraft, Air India’s decision to bid farewell to its remaining Boeing 747s reflects the pragmatic realities of today’s aviation landscape.

The sale of these majestic planes to AerSale represents a strategic move by Tata Group, Air India’s new custodian, towards optimizing operational efficiency and embracing modern industry standards. Out of the four aircraft sold, two will be repurposed into freighters, while the remaining pair will be meticulously disassembled to salvage valuable components.

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The final flight from Mumbai witnessed a touching tribute as pilots performed a traditional ‘Wing Wave,’ symbolizing the conclusion of the Boeing 747‘s distinguished service with Air India. This poignant gesture encapsulates the deep sentiment attached to the aircraft’s departure and its significant contribution to the airline’s legacy.

As the Boeing 747 embarks on its journey to Plainfield, USA, nostalgia permeates the air, evoking memories of its maiden flight on March 22, 1971. Over five decades, Air India operated a total of 25 Boeing 747s, each leaving an indelible mark on the annals of aviation history.

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