Recent News

Defence, Recent News

Acquisition of MQ-9B drones: Speculative reports uncalled for

Delhi, 25th June 2023: The Defence Acquisition Council (DAC), on June 15, 2023, accorded the Acceptance of Necessity (AoN) for acquisition of 31 MQ-9B (16 Sky Guardian and 15 Sea Guardian) High Altitude Long Endurance (HALE) Remotely Piloted Aircraft Systems (RPAS) for Tri-Services from the USA through Foreign Military Sale (FMS) route. The AoN included the number of UAVs to be procured along with associated equipment. The AoN noted the estimated cost of 3,072 million US dollars provided by the US Government. However, price will be negotiated once policy approval of the US Government is received. The Ministry of Defence (MoD) will compare the acquisition cost with the best price offered by General Atomics (GA) to other countries. The procurement is in progress and would be completed as per the laid down procedure. Under the FMS route, a Letter of Request (LOR) would be sent to the US Government where Tri-services requirements, details of equipment and terms of the procurement would be included. Based on LOR, the US Government and MoD will finalise the Letter of Offer and Acceptance (LOA) where details of equipment and terms of the procurement would be negotiated and finalised in accordance with the FMS program and the price and terms offered by the US Government and GA to other countries. Meanwhile, some speculative reports emerged in sections of social media referring to the price and other terms of purchase. These are uncalled for, have ulterior motives and aimed at derailing the due acquisition process. Price and other terms & conditions of the purchase are yet to be finalised and subject to negotiations. In this regard, all are requested not to spread fake news/misinformation which can have serious impact on the morale of the Armed Forces and adversely impact the acquisition process.

Airports, Recent News

Bengaluru Int Airport introduces BLR Pulse app to elevate the airport experience.

Bengaluru, June 26, 2023: Passengers flying through Kempegowda International Airport Bengaluru (BLR Airport) will now have a new way of experiencing the airport with the launch of ‘BLR Pulse’ – a personalised digital travel buddy to cater to their needs. Bangalore International Airport Limited (BIAL) — the operator of BLR Airport, in collaboration with GrayMatter Software Services, has created ‘BLR Pulse’, an omnichannel platform. This app alleviates common pre-travel apprehensions like long security queues, wait times, etc. It allows passengers to navigate within the terminal buildings and take control of their journey at departures and arrivals by providing essential information about the Airport in real-time. The interactive chatbot feature in the app enables a self-sufficient mode of finding answers to various questions, which will be further curated over time. BLR Pulse offers real-time updates on various passenger processing touchpoints, including entry gates, check-in counters and security check areas, while delivering flight status updates directly to passengers’ mobile or email inboxes. In addition, the ‘WayFinder’ feature allows passengers to find their way through the Airport easily. Passengers can book a transit hotel for their short-term stay or complete their last-minute flight check-ins. Speaking about the new offering, Hari Marar, MD & CEO of Bangalore International Airport Ltd (BIAL), said, “Travelling through BLR Airport gets more seamless with the BLR Pulse app. The objective is to help passengers plan their travel on the go even before they reach the Airport. We value our passengers’ time and needs, and hence this app comes as a one-tap solution. Through BLR Pulse, we are connecting the physical and digital worlds to create a ‘Phygital’ environment that will provide passengers and visitors with a unique interactive experience. Passenger experience is at the core of our business, and every product that we launch is to enhance their comfort and support their needs through every aspect of their journey through the Airport.” “As a young company providing innovative products for airports, we are honored to partner with BIAL to create BLR Pulse,” said Vikas Gupta, CEO of GrayMatter Software Services. “With the growing trend of airports becoming digital marketplaces, offering a digital travel companion to showcase the vast array of services available and hyper-personalize user experience will undoubtedly benefit both Airports and their passengers.” BLR Pulse will be a single-source solution for passengers, enabling them to: • Keep track of flight timings and deliver flight status notifications • Get real-time info on airport queues at various touchpoints • Reserve a table at restaurants, order food, pick it up at the store or have it delivered to the gate • Identify and claim lost items • High-speed WiFi that reconnects passengers automatically the next time they arrive • Chatbot that helps clarify queries through the journey. • Last-minute check-ins to save time. • Review ground transportation services options or details on parking • Benefit from relevant offers from retail stores and F&B outlets Throughout this year, BLR Pulse plans to introduce several exciting features to make the airport experience more enjoyable for passengers. These features will allow them to conveniently pre-order their favourite retail or duty-free products, reserve a cab, and easily book flights, rooms at the transit hotel, lounges, parking spots, etc. The app’s omnichannel operations management system will use real-time information about their location, time, and purpose to provide personalized recommendations that engage and influence passengers. BLR Pulse utilises indoor positioning, passenger flow data, travel document management, IoT, and data insights to integrate systems and services seamlessly. The app is built around a single-cart capability that enables a single payment for all purchases across varied categories, powered by a unified payment gateway.

Recent News

Uber Rolls out on-demand EV rides with ‘Uber Green’ at Mumbai Int. Airport

Mumbai,21.06.2023: Uber announced the launch of its flagship EV product, Uber Green with Chhatrapati Shivaji Maharaj International Airport (CSMIA) being the first location in Mumbai to offer the service. Accelerating sustainable mobility in India, Uber now offers on-demand electric vehicle (EV) rides with Uber Green, allowing riders to enjoy eco-friendly transportation options with a simple tap on the app. Uber Green will be currently available for passengers requesting a green ride to and from the Mumbai Airport. The new service will be available at a dedicated pick-up zone at Terminal 2 at Mumbai International Airport, and across various parts of Mumbai, ensuring that a wider range of passengers can contribute to reducing carbon emissions and promoting sustainable mobility throughout the city. Commenting on the launch, Spokesperson, Uber India and South Asia, said, “Building on our strong association with Adani Airports and our shared commitment to sustainability, we are thrilled to introduce Uber Green in Mumbai starting from The Mumbai International Airport. Sustainability shouldn’t be complicated; it should be effortless. With Uber Green, riders can make a small change that collectively leads to a significant environmental impact, one ride at a time. By offering on-demand electric rides, we aim to provide a convenient and zero-emission transportation option for our riders in Mumbai, taking a major step forward in our electrification journey.” Spokesperson Chhatrapati Shivaji Maharaj International Airport, said, “We are delighted to partner with Uber in launching ‘Uber Green’ at Mumbai’s Chhatrapati Shivaji Maharaj International Airport (CSMIA). Over the years, Mumbai Airport has made resilient efforts in contributing to making aviation sustainability a reality and is committed to achieving operations Net Zero Carbon Emission. The airport recently achieved the Highest-Level 4+ “Transition” of Airport Carbon Accreditation (ACA) program of Airport Council International (ACI), making it only the 3rd airport to achieve the esteemed certification in the Asia-Pacific region. By providing passengers with the option of on-demand EV rides, we are collectively taking significant strides towards sustainable transportation and carbon emission reduction in the city. This launch aligns with our vision of promoting eco-friendly mobility and reinforces our commitment to creating a more sustainable and environmentally conscious Mumbai.”

Recent News

Deutsche Aircraft delivers D328TM to German Aerospace Centre (DLR) as next flying test lab for climate-friendly regional transport

Paris Ar Show, 20.06.2023: Deutsche Aircraft has won the public tender with the German Aerospace Centre (DLR) for the step-by-step conversion of a Dornier 328 Turboprop into a flying testbed. The procurement, conversion and use as a flying testbed is part of the UpLift project for research into technologies for the use of hydrogen in aviation. By converting the D328, a classic regional aircraft, into a flying testbed, a bridge will be built between research and practice. DLR will act as the project manager for UpLift. Deutsche Aircraft is one of the project partners and will contribute its expertise as an aircraft manufacturer. The plan is to test pioneering propulsion, fuel and system technologies under real flight conditions in order to accelerate research and development. The funding for 2023 to 2025 is part of the German Federal Ministry for Economic Affairs and Climate Protection (BMWK) aviation research program LuFo Klima, which is how the German government is supporting the aviation industry on its way to CO2 neutrality and climate compatibility. German OEM for the future of German aviation The D328, EASA’s large aircraft class (“CS25”), provides the ideal platform for demonstrating new components and systems under test since it has a wide stand-up cabin which allows for various modular options. Aside from the space, the turboprop boasts a 30,000-foot flight ceiling, an upgradeable flight deck, the option to convert to 100% SAF, and strong field performance. The overall high performance and robustness of the aircraft, the expandable cockpit and, last but not least, the possibility of testing SAF (sustainable aviation fuel) and, in the future, hydrogen or other sustainable energy sources in flight, make the D328 the perfect tool for the research project. Future system technologies, fuel cells, fuel systems and their integration will play an important role here. Furthermore, the OEM Deutsche Aircraft brings in the technological expertise and know-how to support DLR’s research activities in UpLift. Deutsche Aircraft is also a partner to science and industry in other LuFo projects, working together to pave the way to climate-compatible aviation. Those relationships are an important component of the German aviation ecosystem, also in terms of developing chances for future aviators. Dr. oec. Jasmin Eberharter, Head of Research and Technology programs at Deutsche Aircraft, emphasizes: “The path towards climate-neutral flights is a joint effort between the whole aviation ecosystem. With UpLift, aviation experts have a significant opportunity to join forces across science and industry, further contributing and accelerating sustainable aviation.” Prof. Dr.-Ing. Anke Kaysser-Pyzalla, Chairwoman of the DLR Executive Board, says, “The new D328 UpLift research aircraft will perfectly complement DLR’s research fleet as a flying test laboratory for hydrogen technologies and pave the way for a new generation of climate-compatible aircraft in the regional aircraft class. This new fleet member, in close partnership with the aviation industry, the air transport industry as well as SMEs and start-ups, gives DLR the opportunity to test disruptive approaches in the development of new propulsion systems including hybrid-electric concepts based on hydrogen technologies and novel fuels up to the flight test stage.” The D328 is particularly suitable for assessing innovative propulsion technologies in flight due to its specific design characteristics. In addition, the D328 is used worldwide for regional commercial flights with usual propulsion technologies, providing a wealth of reference values for the evaluation of new technologies. Dave Jackson, CEO of Deutsche Aircraft, emphasized what this agreement meant for the future developments: “The UpLift Programme and the D328 as a test platform is an important step towards paving the way for the future of the aviation industry. The D328 as a flying testbed platform will be crucial in laying out the groundwork for needed technological advancements.” Nico Neumann, COO of Deutsche Aircraft, is proud to have a D328 in DLR’s fleet. He states that: “We are fully committed to support as an OEM the integration of emerging technologies, to move aviation and technologies towards climate neutral flights.”

Recent News

Eve Air Mobility and Nordic Aviation Capital Sign LoI for up to 30 eVTOLs

Paris Air Show, 20.06.2023: Eve Air Mobility has signed a Letter of Intent (LOI) with Nordic Aviation Capital to promote the electric vertical take-off and landing (eVTOL) aircraft through optimized leasing strategies. The LOI establishes that Eve will have the opportunity to utilize NAC’s global presence and asset management knowledge while NAC will acquire 15 firm plus 15 optional eVTOLs that will be leased to fleet operators, supporting the development and scaling of innovative transportation operations. As the third leasing company added to Eve’s customer list, NAC plays a key role in the development, expansion and success of the eVTOL and Urban Air Mobility (UAM) industry by providing financing, risk management and industry expertise in additional markets across the world. The partnership also allows Eve and NAC to diversify portfolios, encourage environmental conservation and technological advancement, and expand eVTOL leasing options. With the UAM industry focused on electric aircraft, successful collaboration emphasizes the development of environmentally friendly aviation technologies and propulsion systems for a more sustainable future. “This partnership with Nordic Aviation Capital offers the world greater convenience and access to the latest and most advanced air travel solutions,” said Andre Stein, co-CEO of Eve. “By leveraging leading technology and providing exceptional customer experiences, fleet operations will enable the growth and development of the urban air mobility network. With the support of NAC, creating strategic partnerships will continue to allow Eve to improve the network and accessibility of urban air mobility.” Norman C.T. Liu, President & CEO of NAC, said: “We are pleased to have signed this LOI with Eve. This is an important step in our ESG strategy, and we look forward to partnering with Eve to bring these innovative and sustainable solutions to market.” From design to user experience, reliability and usability, Eve is committed to integrating cutting-edge technology into the UAM industry. Eve takes a comprehensive approach to its eVTOL project, Services and Operations Solutions and Urban Air Traffic Management (Urban ATM) to guarantee air commuters a safe and sustainable transportation alternative. Determined to make UAM a reality over the next two years, Eve is backed by Embraer, with renowned aircraft engineering expertise and a record of successful aircraft construction and certification. Eve is looking toward the future by enhancing its products and services to cultivate the success and innovation of air transportation.

Recent News

The ALFURSAN frequent flyer program of SAUDIA

Riyadh,20.06.2023: SAUDIA, the national flag carrier of the Kingdom of Saudi Arabia, offers its guests a rewarding frequent flyer program through ALFURSAN. Guests benefit from numerous exclusive travel benefits and rewards that make every journey more enjoyable. Members can redeem Reward Tickets and flight upgrades to make their travels more enjoyable, while Silver and Gold Tier members gain exclusive worldwide lounge access along with a range of other Tier status benefits. Through SAUDIA’s membership in the prestigious SkyTeam alliance, ALFURSAN members can also earn Miles with global airline partners. Membership Tier ALFURSAN loyalty program prides itself on rewarding our most frequent flyers with access to exclusive benefits. All members start with Blue Tier, gaining privileges such as exclusive partner offers, access to Reward Miles, and priority waitlisting, among other benefits. By simply flying with SAUDIA or SkyTeam partners, you can upgrade your membership to Silver, and Gold Tier. Each level comes with its own set of unique benefits and privileges, on top of what you earned in the previous Tier, giving you even more reasons to fly with us. As a Silver or Gold member you will have access to the ALFURSAN lounge, additional baggage on flights, and can earn more Reward Miles, helping you redeem your next holiday faster. ALFURSAN Miles Program Enjoy more from your membership with ALFURSAN Miles. You can earn and redeem both Reward and Tier Miles in the air on SAUDIA and SkyTeam flights, and earn Reward Miles on the ground by engaging in our fantastic partner offers, making it easier than ever to elevate your travel experience. As you fly with SAUDIA and SkyTeam airlines, you will earn Tier Miles based on the distance traveled and the fare class of your ticket, helping you upgrade and enjoy more from your membership. ALFURSAN members will earn Reward Miles by flying, as well as on the ground every day, by using an ALFURSAN Credit Card, or engaging with our partners and their incredible offers. Reward Miles can be redeemed for a Reward Ticket and flight upgrades, helping you travel sooner, and in style. Family Program ALFURSAN program offers an added advantage that enables you to pool your Miles by adding your family members to your membership. You can nominate up to 8 members of your family to associate with your membership record (including spouse, children aged 2 years and above, parents, adopted children and home workers under main member individual sponsorship). Each family member will receive a separate membership number so that all members of the family can enjoy the benefits of ALFURSAN program. ALFURSAN Lounges Lounge access is exclusive to guests flying in First Class and Business Class, as well as to ALFURSAN members with Gold or Silver status. First-class amenities can be enjoyed in the ALFURSAN Lounges – culinary delights, peaceful relaxation oases or private showers. Eligible guests not only have access to the ALFURSAN Lounges, but also to lounges at more than 750 lounges worldwide.

Recent News

Etihad starts flights to Portugal as Inaugural Flight Lands in Lisbon

Abu Dhabi,19.06.2023: Etihad Airways, the national airline of the UAE, touched down for the first time in Lisbon on Sunday, marking the launch of regular services between Abu Dhabi and the Portuguese capital.The inaugural flight, EY63, was celebrated at Abu Dhabi Airport before take-off with His Excellency Fernando d’Orey de Brito e Cunha Figueirinhas, Ambassador of the Republic of Portugal to the UAE and Chris Hedlin, Etihad’s Vice President Network Planning. On arrival in Lisbon, Etihad’s captains waved UAE and Portuguese flags from the cockpit to celebrate the new air link. The new service will be operated on Tuesdays, Wednesdays and Sundays using a state-of-the-art Boeing 787-9 Dreamliner aircraft, offering 28 seats in Business and 262 seats in Economy, entertainment systems, in-seat power, and in-flight Wi-Fi connectivity. Antonoaldo Neves, Chief Executive Officer, Etihad Airways, said: “As we continue to expand our global network, we’re thrilled to be flying for the first time to Lisbon. We look forward to welcoming guests to visit the historic city of Lisbon while also connecting the people of Portugal with the UAE and destinations across the Middle East, Asia and Australia.” Initially announced as a seasonal route, Etihad Airways has extended the service through to the winter season to make it a year-round operation, as a result of strong travel demand. Lisbon was recently voted as the “Leading City Break Destination” and “Leading Seaside Metropolitan Destination” at the 2022 European edition of the World Travel Awards, proving its appeal to holidaymakers. Lisbon is Europe’s second oldest capital city and offers visitors a rich history, picturesque beaches, breathtaking architecture and a vibrant nightlife. The inaugural flight to Lisbon coincides with the launch of Etihad’s summer season flights to the Greek island of Mykonos which commenced on 16 June and Málaga on 18 June.

Recent News

Curtiss-Wright to Provide Flight Test Instrumentation Solution to Support Airbus Eurofighter Typhoon Program

Paris air show , 19.06.2023: Curtiss-Wright’s Defense Solutions division, a leading supplier of flight test instrumentation (FTI) solutions engineered to succeed announced that it was selected by Airbus to provide a system solution for use during flight tests of one of the Eurofighter Typhoon instrumented production aircraft (IPA). The Eurofighter Typhoon IPA aircraft are fitted with telemetry instruments to support dedicated flight testing and systems development. Under the contract, Curtiss-Wright will provide Airbus Defence and Space GmbH with data acquisition and encoding units (DAU) designed to capture critical test flight data, including the Axon® and KAM-500 DAU product families, and NSW-12GTH Ethernet switch. The Curtiss-Wright FTI technology will collect data from the Eurofighter Typhoon structure, engines, and various systems for use in the aircraft’s development and certification.

Recent News

Israel MoD leads delegation to Paris Air Show following record-breaking defense exports in 2022

Paris Air Show, 19.06.2023: The Israel Ministry of Defense’s International Defense Cooperation Directorate (SIBAT) will inaugurate the Israeli national pavilion at the highly esteemed 2023 Paris Air Show together with 17 Israeli defense industries. This event comes following a record-breaking year for Israeli defense exports, which reached an unprecedented peak amounting to over $12.5 billion dollars in 2022, compared to $11.3 billion in 2021. Israeli defense exports have doubled in less than a decade and increased by 50% in 3 years. The Israeli delegation is led by Minister of Defense Yoav Gallant, IMoD Director General Maj. Gen. (Res.) Eyal Zamir, Director of SIBAT Brig. Gen. (Res.) Yair Kulas, along with senior representatives from the Israeli defense establishment. The leaders will engage in discussions and foster collaborations with global counterparts to further advance Israeli defense industries and strengthen official partnerships. Renowned as the world’s largest air and aerospace defense exhibition, the Paris Air Show attracts a diverse range of exhibitors, official delegations, professionals, and audiences. Occurring biennially, this year’s event will witness the participation of approximately 150,000 professionals and over 2,500 defense industries, all showcasing their cutting-edge technological solutions in the aerospace, civilian, and defense sectors. Director of SIBAT, Brig. Gen. (Res.) Yair Kulas: “Defense industrial cooperation stands as a vital cornerstone of our strategic defense alliances with partners worldwide. Israel’s defense establishment and industries have long been at the forefront of pioneering defense technology and solutions, earning international recognition and trust in our technological capabilities. We are honored to participate in this esteemed exhibition and look forward to further fruitful collaborations with our counterparts.” Israeli defense industries will present an impressive array of technological solutions at the national pavilion including air defense systems, unmanned aerial systems, radar and laser technologies, missile warning systems, and advanced command and control solutions. Notable technological solutions will include air defense systems, unmanned aerial systems, radar, laser, and missile warning systems, command and control solutions and more. Israeli defense industries participating in the national pavilion include: Aeronautics, Ashot Ashkelon Industries, Bet Shemesh Engines, Bird Aerosystems, Bluebird Aero Systems, Copterpix, Creomagic, CTI-INTL Solutions, Elbit Systems, Enercon Technologies, Israel Aerospace Industries, Rafael Advanced Defense Systems, SpearUAV, Steadicopter, Thermal Beacon, Tomer – A Government Owned Company, and UVISION Air.

Civil Aviation, Recent News

India’s Domestics Pax marks annual growth of 36.10% and monthly growth of 15.24%

16th June 2023, New Delhi: The Civil Aviation sector in the country has witnessed an impressive growth, with the number of passengers carried by Domestic airlines growing substantially. Based on the traffic data provided by different Domestic airlines, the passenger count reached an impressive milestone of 636.07 lakhs during January-May 2023, reflecting a significant annual growth rate of 36.10%, compared to the corresponding period in the preceding year of Jan-May 2022, during which the passenger count was 467.37 lakhs. In the month of May 2022, passenger count was 114.67 lakh, which in May 2023 rose to 132.41 lakh, registering a Month-on-Month growth of 15.24%. This consistent growth is a testament to the collective efforts of airlines, airports, and the Ministry of Civil Aviation in fostering a safe, efficient, and customer-centric aviation ecosystem. The overall passenger number in May 2023 increased by 3.26 lakhs (2.52%) as compared to April 23. The notable increase in the volume of passengers demonstrates the strength and durability of India’s aviation sector, showcasing the continuous endeavours to improve connectivity and offer convenient travel choices to our country’s citizens. The higher load factor of 636.07 lakhs passengers during January – May 2023 suggests a rising demand for air transportation, underscoring the favourable direction of the aviation industry. Also, the number of complaints decreased in May 2023 vis-à-vis May 2019. In May 2019, a total of 746 passenger related complaints had been received by the scheduled domestic airlines. Whereas, in May 2023, a total of 556 passenger related complaints had been received by the scheduled domestic airlines. According to Jyotiraditya M. Scindia, Union Minister of Civil Aviation and Steel, “The collaborative efforts of all stakeholders have played a crucial role in propelling the growth of the aviation sector and establishing India as a prominent global aviation hub. The consistent expansion of the domestic airline industry and the birth of regional airlines are strengthening our economy, connecting people throughout the nation and ensuring last mile connectivity through the UDAN Scheme. The Ministry remains committed to fostering a favourable environment for the aviation industry to flourish and promote sustainable growth while ensuring the highest standards of safety, efficiency, and passenger satisfaction.” This accomplishment is an outcome of the careful and thorough planning, operational effectiveness, and proactive actions undertaken by the industry. Following the COVID-19 pandemic, airlines have shown resilience by providing smooth and hassle-free travel experiences for passengers, along with improved air services.

FOREWORD

Dear Reader’s,

 

The current edition of Aviation World has covered many areas of Aerospace & Defence based on the latest development in the sector. The front cover highlights three different images, first for the Union Civil Aviation Minister ….. who is leading from the front to steer Indian Civil Aviation sector to witness one of the most interesting phases. He is also facing most tumultuous timing due to the ongoing financial stress in the Aviation sector due to ATF rising cost and long airspace restrictions resulting in mounting losses for Indian carriers. Despite of all the ground level challenges,the minister is addressing new things on regular basis which keeps the sector motivated. We have featured many such developmental works in this edition done under his guidance which will be interesting to read.

Our lead story on “ The West War” is another important feature which covers the ground level reality of the challenges faced by the Aviation sector. Its though time ahead and we believe it will pass soon .

There are features on Regional connectivity and MoCA revised rules on the UDAN 2.0 and how its going to transform the flying experience within India.

In this edition, we have covered topics on MRO,Various Policy changes,Sea Plane Operations by SkyHop Aviation, TATA-Airbus joint project on C295 military aircraft under Make In India which is expected to roll out soon and many other interesting contents which will be good to read.

We are covering Farnborough International Airshow 2026 from 20-24July 2026 in London and our next edition will be based on the same event.For features, you may contact our team on priority basis.

 

Happy Reading!

NEWSLETTER

Aviation World Magazine is India’s premier aviation magazine and has been actively supporting the development of the Indian and global civil aviation sector. We started our journey in year 2015 and its been 12 years now and the response and acceptance is really encouraging. Thanks to all our associates and writers who remained with us in our progressive journey.

We have started 2026 on a very positive note and we look forward to increase our footprints to more locations and induct many more new companies in our campaign.. Do write to us at : editor@aviationworld.in

Disclaimer

The contents published in this website are news covering Aviation, Aerospace and Defence sector. The objective is to provide news in informative form to keep our readers updated of the latest development. We also publish content featured in our print publication Aviation World.We try our best to avoid any factual errors or image displayed here but we ensure immediate corrections to any such thing brought to our notice that might have been published inadvertently. All images and contents are sourced from the relevant organisations media team.

Copyright ©2014 – 2026. AVIATION WORLD. All rights reserved.

Scroll to Top