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The Demon was originally designed around the Westinghouse J40 turbojet, but the engine proved seriously underpowered and unreliable, contributing to multiple accidents and threatening the entire programme. McDonnell redesigned the aircraft around the Allison J71, producing the improved F3H-2 series. Although the J71 made the Demon more practical, the aircraft remained subsonic in level flight and could exceed Mach 1 only in a dive.
The Demon was armed with four 20 mm cannon, although the upper pair was sometimes removed to reduce weight. Missile-capable variants carried AIM-7 Sparrow and AIM-9 Sidewinder air-to-air missiles, while later F3H-2 aircraft could also carry bombs and rockets for limited strike missions. Its radar, stability and missile armament made it an important step in the Navy’s transition from gun-armed day fighters to all-weather missile interception.
The Demon served exclusively with the United States Navy, equipping 23 fighter squadrons between 1956 and 1964. It never saw combat, although squadrons deployed aboard carriers in the Mediterranean and Western Pacific during periods of Cold War tension. Approximately 520 Demons were built before the final aircraft retired in 1964.
The F3H was replaced by the faster and more capable F-4 Phantom II. The Phantom’s development grew partly from McDonnell’s proposed F3H-G “Super Demon”, giving the Demon a direct place in the design history of one of the most successful naval fighters ever built.
Embark on a historical journey with our captivating warbird-themed caps! Each cap is made to order and features high-quality designs applied using DTG (Direct to Garment) printing — a method that delivers crisp detail and lasting colour directly onto the fabric. Inspired by legendary military aircraft and aviators, these caps are perfect for warbird enthusiasts, air show fans, or anyone who appreciates aviation history. Add a touch of style and historical significance to your everyday wardrobe.
✈ Made to order.
✈ 6 embroidered eyelets providing an ideal level of ventilation.
✈ Stretch band the perfect fit and absolute comfort.
✈ Stylish silver under-visor.
✈ Made from 63% polyester, 34% cotton, 3% spandex twill.
Production & Shipping times can be found here.
This product is made to order, with production beginning once your order has been received. We are, therefore, not able to cancel or amend an order once it has been placed. This includes changes to the shipping address, size, design, or any other specifications. Please review your order details carefully before finalising your purchase.
Please note there can be subtle variations in colour and minor movement of the product during production that may cause a design element not to be the exact same colour or in the exact position as it appears onscreen. More details can be found on our FAQ page. By producing items on demand rather than in large quantities, we actively contribute to minimising overproduction and waste. We genuinely appreciate your mindful purchasing choices, which support this more sustainable approach. Thank you for your understanding and support!
This product is shipped from either Australia, Canada, the United Kingdom, the United States, Latvia or Spain.
Original blank products sourced from Vietnam or Bangladesh.
EU GPSR-related product information:
Age restrictions: For adults
EU Warranty: 2 years
Other compliance information: Meets the lead and phthalates level requirements.
In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.
Our Refund policy including details on Replacements and Size Guanratees can be found here.

Flex fit , embroidered lettering and good shipping time. That's all you need from a hat and I Love Hangar delivered!
Great quality, very comfortable. Looks amazing
A really well made hat that fits nicely!
