1. Scope

These Terms & Conditions apply to:

• all visitors of the CHECKSIX website;
• registered users;
• subscribers;
• customers purchasing digital or physical products;
• all services provided through the CHECKSIX Digital Publishing Platform.

These Terms apply unless mandatory statutory provisions require otherwise.

2. About CHECKSIX

CHECKSIX is an independent international publisher specialising in military aviation.

Our publications combine professional aviation photography with carefully researched editorial reporting for an international readership.

Our mission is to document military aviation responsibly, accurately and respectfully while maintaining complete editorial independence.

3. Definitions

For the purposes of these Terms:

Website means the official CHECKSIX website and all associated web pages.

Journal means any digital publication, magazine issue, special edition or editorial publication published by CHECKSIX.

Subscriber means a registered user holding an active subscription granting access to subscriber-only content.

Customer means any person purchasing products or services through the CHECKSIX online store.

Account means a registered user profile created to access subscriber services or online purchases.

Digital Products include downloadable PDF editions and any future digital publications made available through the CHECKSIX platform.

Physical Products include printed publications, calendars, merchandise, patches, badges or any other physical products that may become available in the future.

4. Eligibility

By using this website or purchasing products, you confirm that:

• you are legally capable of entering into binding agreements under applicable law;
• the information you provide is accurate and complete;
• you will keep your account information up to date where necessary.

CHECKSIX reserves the right to refuse access to services where false or misleading information has been provided.

5. Website Use

You may use this website solely for lawful purposes.

You agree not to:

• interfere with the operation or security of the website;
• attempt to gain unauthorised access to restricted areas;
• upload malicious software or harmful code;
• misuse subscriber services;
• use automated tools to extract or reproduce website content without permission.

CHECKSIX reserves the right to suspend or block access where misuse is suspected.

6. User Accounts

Certain services require the creation of a personal account.

You are responsible for:

• maintaining the confidentiality of your login credentials;
• safeguarding your password;
• ensuring that access to your account remains secure;
• notifying CHECKSIX immediately of any unauthorised use of your account.

You remain responsible for all activities carried out through your account unless unauthorised use results from circumstances beyond your control.

7. Subscriber Accounts

Subscribers receive access to digital publications and subscriber-exclusive services according to their active subscription.

Subscriber access is personal and non-transferable.

Sharing login credentials with third parties is not permitted.

CHECKSIX reserves the right to suspend subscriber accounts where misuse, unauthorised access or repeated violations of these Terms are identified.

8. Availability of Services

We strive to ensure continuous availability of the CHECKSIX Digital Publishing Platform.

However, temporary interruptions may occur due to:

• scheduled maintenance;
• technical upgrades;
• security measures;
• circumstances beyond our reasonable control.

We cannot guarantee uninterrupted availability at all times but will make every reasonable effort to minimise service interruptions.

9. Changes to Services

CHECKSIX continually develops its digital publishing platform.

We therefore reserve the right to:

• improve website functionality;
• modify subscriber services;
• introduce new features;
• discontinue obsolete services;
• expand our product portfolio.

Such changes will always respect existing contractual rights unless legal or technical reasons require otherwise.

10. Communication

By creating an account or placing an order, you agree that CHECKSIX may communicate with you regarding:

• your account;
• your subscription;
• purchases;
• invoices;
• technical updates;
• security notices;
• new digital editions related to your subscription.

These communications are considered part of the contractual relationship and do not constitute unrelated marketing communications.

11. Acceptance of these Terms

Continued use of the CHECKSIX Digital Publishing Platform constitutes acceptance of these Terms & Conditions.

If you do not agree with these Terms, you should discontinue use of the website and associated services

12. Orders

Orders may be placed through the CHECKSIX online store.

By completing the checkout process, you submit a binding offer to purchase the selected product or subscription.

An order confirmation sent by email confirms receipt of your order but does not necessarily constitute acceptance of the contract.

A contract is concluded once payment has been successfully processed and access to the purchased product or service has been granted.

CHECKSIX reserves the right to decline orders where legally justified or where fraudulent or abusive activity is suspected.

13. Prices

All prices displayed on the CHECKSIX website are shown in the applicable currency and include statutory VAT where required by law.

Any applicable taxes are displayed during the checkout process before the order is completed.

CHECKSIX reserves the right to adjust prices for future purchases at any time.

Price changes do not affect orders or subscriptions that have already been concluded unless explicitly stated.

14. Payment

Payments are processed through secure third-party payment providers.

Currently available payment methods include:

• Stripe
• PayPal

Additional payment methods may be introduced in the future.

CHECKSIX does not store complete payment card information on its own servers.

Payment processing is subject to the respective payment provider’s terms and privacy policies.

15. Digital Publications

CHECKSIX publishes independent editorial works in digital format.

Digital publications currently include downloadable PDF editions of the CHECKSIX Journal and may in the future include additional digital editorial products.

Each publication represents a complete editorial work consisting of written reports, photography, layout, graphics and associated intellectual property.

Digital publications are intended for the personal use of the purchaser or authorised subscriber only.

16. Digital Delivery

Unless otherwise stated, purchased digital products become available immediately after successful payment.

Digital products are provided through:

• subscriber access;
• customer account;
• secure download;
• other authorised digital delivery methods.

Customers are responsible for maintaining access to their registered email address and user account.

Where technical problems occur, CHECKSIX will make reasonable efforts to restore access within an appropriate period.

17. Subscriber Access

Subscribers receive access to publications according to the subscription model selected at the time of purchase.

Subscriber benefits may include:

• access to current issues;
• archive access where applicable;
• exclusive subscriber content;
• subscriber notifications.

The exact scope of subscriber services is determined by the respective subscription plan.

CHECKSIX reserves the right to improve or expand subscriber services without reducing existing contractual rights.

18. Licence of Use

The purchase of a digital publication grants the customer a personal, non-exclusive, non-transferable licence to use the purchased publication.

Unless expressly permitted by applicable law, customers may not:

• reproduce publications;
• distribute publications;
• upload publications to file-sharing platforms;
• publish publications online;
• modify or create derivative works based on the publication;
• make publications publicly available.

Ownership of all intellectual property remains with CHECKSIX and the respective rights holders.

19. Download Availability

CHECKSIX endeavours to ensure that purchased digital publications remain available through customer or subscriber accounts.

However, customers are encouraged to download and securely store purchased publications after purchase.

CHECKSIX cannot guarantee permanent online availability where circumstances beyond its reasonable control require changes to technical infrastructure or publishing systems.

Nothing in this provision limits statutory customer rights.

20. Future Physical Products

The CHECKSIX online store may in the future offer physical products, including but not limited to:

• printed publications;
• calendars;
• books;
• branded merchandise;
• patches;
• badges;
• apparel;
• collector’s editions.

Where physical products are offered, additional delivery conditions, shipping information and return policies may apply.

These additional provisions shall become part of these Terms where applicable.

21. Availability of Products

All products are offered subject to availability.

CHECKSIX reserves the right to discontinue products, replace editions or introduce revised publications where editorial or technical considerations require.

Where products become unavailable after an order has been placed, customers will be informed without undue delay and any payments received for unavailable products will be refunded where required.

22. Subscription Changes

Subscription models may evolve over time as CHECKSIX expands its publishing services.

Any material changes affecting existing subscribers will be communicated in advance.

Existing contractual rights will be respected unless changes are required by law.

23. Promotional Offers

From time to time, CHECKSIX may offer promotional prices, introductory offers or limited-time subscription campaigns.

Such offers apply only under the specific conditions stated at the time of publication and do not establish a permanent entitlement to discounted pricing.

24. Refunds

Refunds for digital products are governed by applicable consumer protection law and by the CHECKSIX Refund Policy, where applicable.

Customers are encouraged to review the Refund Policy before completing their purchase.

25. Intellectual Property

Unless otherwise stated, all content published by CHECKSIX is protected by applicable copyright, trademark and intellectual property laws.

This includes, but is not limited to:

• editorial articles;
• reports;
• photography;
• graphics;
• illustrations;
• layouts;
• magazine designs;
• logos;
• trademarks;
• downloadable publications;
• website content.

The purchase of a publication or subscription does not transfer ownership of any intellectual property rights.

All rights remain with CHECKSIX and the respective authors, photographers or other rights holders.

26. Copyright and Use of Content

No part of any CHECKSIX publication may be copied, reproduced, distributed, translated, published, uploaded, transmitted or otherwise exploited without prior written permission, except where expressly permitted by applicable law.

This applies equally to:

• complete publications;
• individual articles;
• photographs;
• graphics;
• cover artwork;
• page layouts;
• excerpts exceeding applicable copyright exceptions.

Proper citation of CHECKSIX as a source does not replace the requirement to obtain permission where permission is legally required.

27. Editorial Independence

CHECKSIX is an independent international military aviation journal.

Editorial decisions are made independently and in accordance with professional journalistic principles.

The publication of reports, interviews, photography or editorial features does not imply endorsement by military organisations, government authorities, manufacturers or any other institution referenced within the publication.

Likewise, editorial independence is maintained regardless of advertising relationships, partnerships or media accreditations.

28. Accuracy of Information

CHECKSIX is committed to publishing carefully researched and professionally prepared editorial content.

Despite thorough editorial review, errors may occasionally occur.

Information published by CHECKSIX reflects the knowledge available at the time of publication.

Readers should be aware that military aviation, regulations, operational procedures and technical information may evolve over time.

CHECKSIX does not guarantee that all published information will remain current indefinitely.

Where significant factual errors are identified, appropriate corrections may be published where necessary.

29. Third-Party Content

CHECKSIX may occasionally reference external organisations, manufacturers, museums, military units, governmental institutions or other third parties.

Such references are provided for editorial purposes only.

Unless explicitly stated, these organisations neither sponsor nor endorse CHECKSIX or its editorial opinions.

External websites linked from CHECKSIX remain the responsibility of their respective operators.

30. User Conduct

Users agree not to:

• misuse subscriber services;
• infringe intellectual property rights;
• interfere with website security;
• attempt unauthorised access to restricted areas;
• upload malicious software;
• use automated systems to reproduce or harvest website content without permission.

CHECKSIX reserves the right to suspend or terminate access where these Terms are violated.

31. Limitation of Liability

CHECKSIX provides its website, publications and services with the greatest possible care.

However, to the extent permitted by applicable law, CHECKSIX shall not be liable for:

• temporary interruptions of website availability;
• technical failures beyond reasonable control;
• inaccuracies resulting from third-party information;
• compatibility issues arising from individual hardware or software configurations;
• indirect or consequential damages arising from the use of the website or publications.

Nothing in these Terms excludes liability where such exclusion is prohibited by law, including liability for intentional misconduct, gross negligence, fraud or personal injury.

32. Force Majeure

CHECKSIX shall not be responsible for delays or failures resulting from events beyond its reasonable control, including but not limited to:

• natural disasters;
• war;
• governmental measures;
• cyberattacks;
• widespread internet failures;
• power outages;
• labour disputes;
• technical failures affecting third-party service providers.

During such events, contractual obligations shall be suspended for the duration of the disruption where legally permissible.

33. Amendments to these Terms

CHECKSIX may update these Terms & Conditions where necessary to reflect:

• legal requirements;
• technical developments;
• new publishing services;
• changes to subscriber services;
• improvements to the Digital Publishing Platform.

The most recent version will always be available on our website.

Material changes affecting existing contractual relationships will be communicated where required by law.

34. Governing Law

These Terms & Conditions shall be governed by the laws of the Federal Republic of Germany.

Where mandatory consumer protection provisions of another jurisdiction apply, such mandatory provisions remain unaffected.

35. Severability

Should any provision of these Terms & Conditions become invalid or unenforceable, the remaining provisions shall remain in full force and effect.

The invalid provision shall be replaced, where legally permissible, by a valid provision reflecting the original commercial intent as closely as possible.

36. Questions & Contact

Questions regarding these Terms & Conditions may be directed to:

CHECKSIX – The International Military Aviation Journal
Editorial Office
Robert Kysela
Burggaillenreuth 116
91320 Ebermannstadt
Germany

Email: chiefeditor@checksix-journal.com

Final Statement

At CHECKSIX, professionalism extends beyond our editorial work.

These Terms & Conditions are intended not only to define the legal framework governing our services but also to reflect the values upon which our journal has been built:

Integrity.

Reliability.

Editorial Independence.

Respect for Intellectual Property.

Commitment to Excellence.

Thank you for being part of the CHECKSIX community.