Detonation Space offering is now closed and is no longer accepting investments.

Revolutionary Combustion Engines


Detonation Space is developing rotating detonation engines which are thermodynamically 30% more efficient than conventional combustion-type engines. We believe that with the help of Detonation Space’s patent pending engine technology, drones will have longer flight times, planes will be able to accommodate more passengers, rockets will be able to go farther or carry more payloads.
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This Reg CF offering is made available through StartEngine Capital, LLC. This investment is speculative, illiquid, and involves a high degree of risk, including the possible loss of your entire investment.
Detonation Space

Reasons to Invest

The Problem

Conventional Engine Tech is Outdated

Modern vehicles operate using combustion engines - a technology that hasn’t changed much since its development in the 19th century (source). Combustion engine technology limits efficiency of spaceships, aircrafts, and drones.

This causes some problems obviously,  as current tech is:

Heavy: Space rockets are quite heavy and bulky when evaluated in terms of the payload they carry, due to the fact that conventional rocket engines are quite inefficient. Only 5% of the total weight of space rockets is payload! Most of the remaining weight is fuel. (source, source, source, source)

Expensive: Aerospace firms spend most of their resources on engines (source).

Limiting: The high fuel consumption limits space exploration, carrying more passengers, going further, and longer flight times (source).

The Solution

Meet Detonation Space: Lighter, More Efficient Tech

Detonation Space works on new generation propulsion technology rotating detonation engines. 

What We Do:

We are developing rotating detonation engines which are thermodynamically 30% more efficient than conventional combustion  engines with aerospike nozzles (Source, Source). 


*Rendering of Detonation Space engine. Images are computer-generated demo versions. Product is not currently available on the market.

What We Achieve: 

We have carried out numerical works and some partial experimental tests of the Lundet-7 engine, which can produce 7 kN thrust and continue to develop it.

At the End:

In 2022, we plan to perform the flight test using the rotating detonation engine for the first time in the world.

And, we increase payload capacity by:

  • Decreasing engine sizes

  • Decreasing cost per KG of weight

While reducing both the weight and size of aircraft engines, we also increase their efficiency. By removing the high pressure compressors and turbines from the engine, we are developing simpler and more efficient engines. Thanks to our detonation combustion model, we plan to provide a 30% increase in efficiency, reduce fuel costs in passenger planes and increase passenger capacity. The reduction in the weight of the engines and the increase in efficiency enable faster and cheaper flights.

The Market

A Spacious Market

The total market is huge to say the least (source). Our technology is providing a more efficient alternative to combustion engines. Current combustion engine market is estimated to grow by 4.6% per year between 2020-2027, reaching 226 million units by 2027.

Detonation Space engine is currently crafted for use in rockets. But our objective is to also serve aircraft, helicopter, and drone markets with our updated engines. We provide market specifics below.

Here’s more on what our market space looks like (source):

Total TAM Size = 100.7 Billion USD

SAM Size  =  1.11 Billion USD 

SOM Size  =  204  Million USD

* Source 1, Source 2Source 3Source 4

We unlock supersonic flights

Not only are we bringing existing technologies to the next level by updating engine dynamics, but we believe we are also helping to unlock a completely new mode of transportation for humanity - hypersonic flights. Some time ago crossing the globe on a plane in just a few short hours could only be seen on the pages of a science-fiction novel or on our movie screens. Today it is becoming our reality. Hypersonic flights. One of the major challenges for implementation of hypersonic flights is a suitable engine. The prototype Lundet-7 engine developed by Detonation Space is intended to be technologically suitable for hypersonic jets and planes, and will give a major push to the development of above-the-speed-of-sound flights.

Our Traction

We’ve Taken Off

And we’ve come a long way. Here’s where we’ve been, and where we’re going. 

Accepted to the SCALE Aerospace Accelerator Program

We are very excited to announce that Detonation Space has been accepted into Starburst's Aerospace Accelerator Program run with University of California Los Angeles! We are very happy that being a part of this community will take our work to a higher level.

Starburst is a highly networked accelerator program that enables aerospace startups to commercialize their technologies and increase the availability of their products, brings startups together with investors and institutions, and tries to reveal innovative technologies.

What We Do

We Make Next Generation Engines

We go the distance by manufacturing engines for both the aerospace and the aviation industry. In addition, we offer services for the implementation of these engines in the products of the company we sell to.

We plan to produce engines with different thrust values and present them to aerospace and aviation companies in the market - inspiring them to use our lighter, more efficient engine.

Here’s some of our engine’s specs:


*Rendering of Detonation Space engine. Images are computer-generated demo versions. Product is not currently available on the market.

The Business Model

Better Engines: Better Profit 

The total cost of a rocket engine in a rocket is about $20 million, depending on how many are used (source).  Our strategy here is to sell engines between $20-30 million - as we believe they are more advanced, and higher quality than most on the market.

Based on the advantages of our engine, we expect that companies would have reduced fuel expenditures and see value in spending fewer resources on development of their own engines and instead purchasing Detonation Space engines.

Our target market is companies that manufacture rockets, aircrafts, helicopters, drones, and missiles. Detonation Space will make money by selling engines, supporting equipment, and providing on-demand engineering and maintenance service.

How We Are Different

Pioneers in Detonation Technology

The detonation engine technology we use in the rocket engine industry attracts the attention of academic circles today. NASA, US Navy, and leading academic institutions are pushing this technology (Source, Source).

We believe no product is produced for the industry yet, and so far, the studies in general have been carried out for only academic purposes. 

There are a few companies in the sector that only produce rocket engines, but these companies produce deflagration mode engines. So they are thermodynamically stuck at the limits. 

Additionally, only some universities work in detonation technology. At this point, we are ahead of the game in detonation engine technology: both with our academic studies and experiences in the experimental field.

The Vision

We Want to Make an Impact  

Our vision is to be a company that proves itself - using detonation engines to achieve 3% dominance in the market within the next five years. 

We are planning to establish a test facility in the near future, and among our clients, we see companies producing rockets, aircrafts, helicopters, drones, and missiles.

Here’s where we are going:


Meet the Team Behind the Launch

As the co-founder of the company, Umit Yelken completed part of his master's thesis at the von Karman Institute for Fluid Dynamics - working in the field of detonation. 

This led him to successfully applying a detonation model to a rotating detonation engine with his numerical studies. And with that, he has 8 years of experimental experience on rocket engines, as well as awards in some rocket competitions in the United States and Scotland.

Now, our team is made up of mechanical and material engineers, business development experts, and academics alike who have what it takes to make this technology successful.  

With high levels of experience in research, production, and testing with commercial companies in this field - we have the team to thrive. 

Why Invest

Together, We Can Launch into Opportunity 

It is an indisputable fact that the space and aviation industry will grow rapidly in the future, and we set out to take the most important step of this growth. 

It is time to abandon the technology of the 20th century and look towards the future with Detonation Space. 

In the aerospace and aviation industries at the moment, most big players implement a vertical integration model, where they produce all the parts of a rocket in house. This requires huge R&D expenses and a long development cycle.

On the other hand, if we look at the aircraft industry - companies like Boeing and United Airlines do not produce engines themselves. They purchase engines from companies that specialize in engine development instead. 

This allows them to outsource the technically-heavy process to concentrate on their main mission: transporting goods and people from one destination to another. Thus, they remain competitive in the market.

We believe the same will happen in the space industry, and this will only create huge demand for engine and other equipment producers. 

By starting now, we are preparing to meet that demand and serve the market. We invite our investors to walk with us on this path.

Quick Insert


8605 Santa Monica Blvd
West Hollywood, CA 90069

Detonation Space is developing rotating detonation engines which are thermodynamically 30% more efficient than conventional combustion-type engines. We believe that with the help of Detonation Space’s patent pending engine technology, drones will have longer flight times, planes will be able to accommodate more passengers, rockets will be able to go farther or carry more payloads.


Umit Yelken
Umit Yelken
CEO & Director

• PhD Candidate in Mechanical Engineering, MSc in Aeronautics Engineering

• 9 years of experience on rocket engines and 6 years of experience on detonation engines.

• 2 issued patent applications, awards in rocket competitions

Emre Taskin

Emre Taskin

Design Engineer

• Master's Degree In Electronic Communications Engineering

• Competent In Conceptual Designs Of Satellite Communication Systems

• Experience In Mechanical Design, Manufacture And Testing Of Detonation Engines

• 2 Patent Applications 

Assoc. Prof. Alper Yontar

Assoc. Prof. Alper Yontar


• Associated Professor at University

• Post-doctoral degree in Mechanical & Aerospace Engineering from Princeton University

• He was a visiting PhD student at MIT.

• 13 years Experience on R&D of Combustion Engines

• Areas of Expertise; laser ignition, plasma ignition, combustion, CFD and fuel additivies

• More than 20 academic studies on the area of ​​expertise


Detonation Space
Jun 15, 2023
Convertible Notes
Non-Voting Common Stock



Detonation Space Inc.

Corporate Address


8605 Santa Monica Blvd, West Hollywood, CA 90069

Offering Minimum



Offering Maximum



Minimum Investment Amount

(per investor)




Offering Type


Convertible Promissory Notes

Type of Equity Converted Into


Common Stock

Conversion Trigger



Maturity Date


June 15, 2023

Valuation Cap



Discount Rate



Annual Interest Rate



What is a Convertible Note?

A convertible note offers you the right to receive Common Stock in Detonation Space Inc.. The amount of Common Stock you will receive in the future will be determined at the next equity round in which the Company raises at least $10,000,000.00 in a qualified equity financing. The highest conversion price per security is set based on a $15,000,000.00  Valuation Cap or if less, then you will receive a 20.0% discount on the price the new investors are paying.  You also receive 5.0% interest per year added to your investment.  When the maturity date is reached, if the note has not converted then you are entitled to receive Common Stock equal to your investment and interest back at a price per security determined by dividing the Valuation Cap by the aggregate number of outstanding equity securities of the Company as of immediately prior (on a fully diluted basis).

Annual Interest Rate subject to adjustment of 10% bonus for StartEngine shareholders. See 10% Bonus below.

Investment Incentives*

Tier 1 perk - ($500+ Stickers w/ Company Logo)

Tier 2 perk - ($1,000+ Cup w/ Company Logo)

Tier 3 perk - ($5,000+ T-Shirt and Cup w/ Company Logo)

Tier 4 perk - ($10,000+ 3D Printed Mini Model Rocket w/ Company Logo + 5% Bonus on the Convertible Note Interest Rate)

Tier 5 perk - ($25,000+ 3D Printed Mini Model Rocket w/ Company Logo + Invitation for Lundet-7 Ignition Test + 10% Bonus on the Convertible Note Interest Rate)

Tier 6 perk - ($50,000+ 3D Printed Mini Model Rocket w/ Company Logo + Invitation for Lundet-7 and Lundet-40 Ignition Tests + 15% Bonus on the Convertible Note Interest Rate)

*All perks occur when the offering is completed.

The 10% Bonus for StartEngine Shareholders

The Company will offer a 10% additional bonus for all investments that are committed by investors that are eligible for the StartEngine Crowdfunding Inc. OWNer's bonus.

Eligible StartEngine shareholders will receive a 10% increase in the annual interest rate on Convertible Promissory Notes in this Offering. This means your annual interest rate will be 5.5% instead of 5%.

This 10% Bonus is only valid during the investors eligibility period. Investors eligible for this bonus will also have priority if they are on a waitlist to invest and the company surpasses its maximum funding goal. They will have the first opportunity to invest should room in the offering become available if prior investments are cancelled or fail.

Investors will only receive a single bonus, which will be the highest bonus rate they are eligible for.

Irregular Use of Proceeds

The Company might incur Irregular Use of Proceeds that may include but are not limited to the following over $10,000: Salary payments made to one’s self, a friend or relative.



Notice of Funds Disbursement

[The following is an automated notice from the StartEngine team].


As you might know, Detonation Space has exceeded its minimum funding goal. When a company reaches its minimum on StartEngine, it's about to begin withdrawing funds. If you invested in Detonation Space be on the lookout for an email that describes more about the disbursement process.

This campaign will continue to accept investments until its indicated closing date.

Thanks for funding the future.



Detonation engines are urgently needed! Firms like General Electric receive significant funding($500M) to develop a detonation engine.

Pratt & Whitney and GE received a $500 million grant from the US Air Force Research Laboratory to develop detonation propulsion, according to the Łukasiewicz Institute of Aviation.


This is important news. Prominent university labs are working on developing this technology. Still, the high funding of GE and other large companies in this way indicates that there is an urgent need for this technology. Detonation engines play a crucial role in meeting the needs of both the aviation industry and the aerospace industry to go one step further!

Studies on detonation engines are ongoing in many parts of the world. One of them is Poland. Poland had also tested a low-thrust detonation engine.

Big companies are working on detonation engines by receiving extensive funding. One of those who do this work is General Electric. Below I present the information about detonation engines on the website of General Electric.


As Detonation Space, we have come a long way. We have done many tests. We continue on our path to perform our first flight test. Detonation Space's first engine, the Lundet-7 engine, is a significant step towards meeting the market's needs. It is an engine designed following both thrust and ease of use requirements.

Invest in Detonation Space to be a part of Detonation Space's adventure in this technology. Let's create the space technology of the future together!


We increase the efficiency by changing the combustion dynamics, not mechanically.

Dear followers,

Detonation Space develops products in a very different way than other engine developing companies. We would like to present a very short information about this.

The combustion speed in both rocket engines and aircraft engines is at subsonic speeds. They act according to a certain thermodynamic cycle.

Detonation Space's engine technology is using the ZND detonation thermodynamic cycle created by Y. B. Zel'dovich, John von Neumann, and Werner Döring. The burning rate is supersonic. So what advantages does this offer?

  • It can increase efficiency up to 30%.
  • It can be ensured that the same work can be done by using smaller and lightweight engines.
  • It can eliminate the need for pressurization tanks or turbopumps that must be carried to pressurize the fuel or oxidizer in rocket engines.

As a result of these

  • Access to space becomes easier.
  • Costs go down.
  • It is possible to create faster vehicles.

We encourage you to invest in being a part of such technology and facilitating access to space.

- Detonation Space Team


Call to Our Followers

Dear Detonation Space followers,

We invite you to sign up for our e-mail list to keep you informed about Detonation Space and the latest developments about space tech. You can sign up for the e-mail list using the link below.


Best regards

Detonation Space Team


We did an engine test using hydrogen! It gives water as chemical output.

We continue to validate our analyzes using different fuel types. We conducted our first test at high flow using hydrogen as a fuel. It's completely clean technology. No emissions.

We run a lot of tests, but this test was really quite a special one. We tested our hydrogen system for the first time. The results are quite promising. The propulsion technology of the future is just that! Higher specific thrust, lighter engines, resulting in easier access to space.

Our success is your success. Detonation Space, which has made it a target to commercialize detonation engines continues to run towards bigger goals with you, its investors.

Best regards

- Detonation Space Team


Notice of Material Change in Offering

[The following is an automated notice from the StartEngine team].

Hello! Recently, a change was made to the Detonation Space offering. Here's an excerpt describing the specifics of the change:

Detonation Space is extending their campaign for 90 days.

When live offerings undergo changes like these on StartEngine, the SEC requires that certain investments be reconfirmed. If your investment requires reconfirmation, you will be contacted by StartEngine via email with further instructions.


Great news! We are extending our campaign period.

After our correspondence with StartEngine, we decided to extend our campaign period for 90 days! We state that we have the right to close our campaign earlier at any time, and we invite you to invest in this innovative technology before it's too late.

Have a great week with you!

- Detonation Space Team


Detonation Space has released a new press release

Read our new press release about the importance of our work. Don't miss the opportunity to invest in a company working on such amazing technology in the aerospace industry!



200 investors! We've reached $147k and it's climbing!

We are happy to reach our 200th investor. With your support, we will take our technology to a higher level!


19 DAYS LEFT TO INVEST! Summary of the latest developments

Reminder: 19 days left to invest in Detonation Space!

Here are some developments for you:

  • We continue the tests of the Lundet-7 engine. You can watch the test video from this link.
  • We get pretty good connections in the Starburst SCALE Aerospace Accelerator program. We started to meet with the officials of the big space companies day by day!
  • We have completed our pre-detonator tests. Our pre-detonator is working in accordance with our calculations. You can watch the test video here.
  • We continue to grow and we learn about the needs of space companies by communicating with their officials and engineers.

Investments from this campaign will help us grow our team and build a large testing facility. We are moving forward to be an innovative and great space technology company!


Multiple investments in an offering cannot be combined to qualify for a larger campaign perk. Get rewarded for investing more into Detonation Space.


StartEngine Owner’s Bonus

This offering is eligible for the StartEngine Owner’s 10% Bonus program. For details on this program, please see the Offering Summary section below.


Tier 1 perk

($500+ Stickers w/ Company Logo)


Tier 2 perk

($1,000+ Cup w/ Company Logo)


Tier 3 perk

($5,000+ T-Shirt and Cup w/ Company Logo)


Tier 4 perk

($10,000+ 3D Printed Mini Model Rocket w/ Company Logo + 5% Bonus on the Convertible Note Interest Rate)


Tier 5 perk

($25,000+ 3D Printed Mini Model Rocket w/ Company Logo + Invitation for Lundet-7 Ignition Test + 10% Bonus on the Convertible Note Interest Rate)


Tier 6 perk

($50,000+ 3D Printed Mini Model Rocket w/ Company Logo + Invitation for Lundet-7 and Lundet-40 Ignition Tests + 15% Bonus on the Convertible Note Interest Rate)




Cancel anytime before 48 hours before a rolling close or the offering end date.


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