Vertical Reliability
Horizontal Performance

World leader in hybrid unmanned aircraft systems and solutions.

VTOL Experts

100+ Clients

13+ Countries

10+ Years Experience


What is VTOL ?

Deploy Rapidly
Transition Forward
Reach Beyond.

'Vertical Take-off and Landing' - The ability for an unmanned aircraft to launch without the need for a runway or other bulky and costly hardware, rapidly and reliably. 

With brushless electric motors for vertical lift, and an efficient fuel powered combustion engine for forward flight, VTOL aircraft offer significant advantages over conventional designs.


What We Do

We design, manufacture, source and supply industry leading unmanned aircraft systems for the most demanding operations around the world. Expert, experienced consulting and technical guidance, sales, training, support and beyond.


ALTI offers a single point of contact for anything and everything VTOL, along with a comprehensive selection of multi-rotor, fixed wing and hybrid solutions, payloads and communication.


From civil to military, commercial to industrial, talk to our team for a solution to fit your exact requirements. 


Why Choose Us

10+ Years Unmanned Aircraft Experience 

We've been around for a while, we know all the players and provide a high level of expertise and skill.

13+ Countries and Counting

We have been shipping aircraft world wide since 2012.

Client Specific Solutions

We work closely with our clients to build and provide exactly what they need for their operations.

Technical Consulting

Our experienced and technical sales team is here to assist and advise.

Training & Support

Custom Development

Custom payloads, propulsion, communications solutions and more.

Our training & support team and pilots have thousands of hours of flights logged and will ensure you stay airborne. 


Aircraft Solutions












L2 / 1.3kg / 90min / 15km

M3 / 2kg / 3hrs / 50km

TRANSITION / 1kg / 8hrs / 50km

E35 / 3kg / 3hrs / 50km

M4 / 3kg / 4hrs / 100km

REACH / 5kg / 10+hrs / 150km

M6 / 5kg / 10hrs / 150km

Maximum performance specifications

P8 / 7.5Kg / 5Hrs / 15km

D3 / 2.5Kg / 55Min / 15km

 Aircraft / Payload / Endurance / Range




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Industries & Applications


Clients & Partners

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What is the name of the book ?

1 January

Who is the author of the book ?

Subhro Jyoti Chatterjee (Myself)

Who is the publisher of the book ?

Bankim Kumar Chatterjee Publishers (BKC Publishers)

What is the actual price of the book ?

The book is actually priced at Rs. 5000.

  • The book is presently being offered at a discounted price of Rs. 4000.

What does the book deal with ?

The book "1 January" deals with various relevant things that are associated with our day to day life. Among various other things, the book deals with many things which have not been disclosed by anybody till date or are not known to many. The book enhances a persons' general knowledge base and also makes a person up-to-date on various aspects. (The answer is provided based on a general basis, keeping in mind about the cover page)

Who can read the book ?

The book "1 January", can be read by persons of all ages, however there are many areas in the book, where a person above the age of fourteen would have the complete or partial grasp on the subject matters to have a better understanding. Discover for yourself.

Why the cover of the book is so ?

The cover of the book is so, because, any book a person reads or desires to read, has the capability to affect him in various ways. Persons who don't want to get affected of such things should avoid reading the book.

What is the ISBN of the book ?

The ISBN of the book is 978-81-943322-0-6.

Where can I get the book from ?

Presently one can buy the book from Amazon India, Flipkart and at the address mentioned (On specified dates for purchasing from address). Address : B - 49 Gostotala New Scheme Garia Kolkata - 700084 Interested persons can also see the book at National Library of India.

  • Check the website, for specific dates of availability and then fill the form (See Book Online at the top). One can book it 5 days prior from the date of sale and last booking will be accepted 2 days prior from the date of sale.
  • In case, if anyone who desires to purchase the book from the above mentioned address, finds that there is nobody present at the spot on specified date, then feel free to ring the door bell to enquire.
  • Since the address is of a residential area, don't create chaos, for not getting the book or for any other reason.
  • Bring proper change for buying the book from above mentioned address.

What is the condition of the book ?

The book "1 January" is a newly published book. It is a hard cover book, with good page and print quality (Minor issues may be present which may be around 0.5 %)

What if somebody wants to return the book after buying ?

The book once sold is not returnable, in case a person buys it from the above mentioned address. One can check the book before buying.

Who can buy the book ?

Presently the book is available in India only.

What are the various distinguishable features of the book ?

The various distinguishable features of the book are as follows

  • This book is a new approach towards writing. Readers could instantly notice the difference once they read it.
  • Some distinguishable features reagarding the book have not been disclosed here deliberately, and it is left for the readers to find it out for themselves.
  • This book is a collector's item.
  • Cover - Hard cover
  • Dimension (L x B x H) - 22.9 x 29.2 x 8.9 (cm)
  • Weight - 4.3 kg (Approx)

What if somebody don't read the book ?

Buying or reading a book is totally a person's personal choice.

When would I be able to know the next date of availability ?

Check the dates, under the heading "Opening Hours", for dates of availability.

Who created the infinity ?

I didn't. It's good.

What if somebody is unable to buy the book in some of the processes mentioned?

In case one finds it difficult to book, then feel free to write to us or meet us during the specified hours mentioned, on specified days.