News

Watch Boom Supersonic Test Its XB-1 Jet in a Wind Tunnel

Daniel Nelson
An admittedly under-informed flight booker, Daniel arrived at TPG in May 2017 still convinced that Spirit Airlines was an viable travel option. But after just one summer at the frequent flyer's front lines, he's changed for the better.

June 23, 2017 • 1 min read

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When Boom Supersonic unveiled the design of its upcoming XB-1 jet at the Paris Air Show, it created quite a buzz in the aviation world. And for good reason: when the jet takes its first test flight next year it will inch ever closer to restoring commercial supersonic flight.

It's taken a long time to get this far, and the Boom team has been hard at work on the XB-1 — and it filmed some of the tests it ran on a scale model of the aircraft earlier this year, seen in the video below. Watch as the XB-1 (albeit a much, much smaller version) gets put through the wringer in a wind tunnel. It might not be quite as thrilling as rocketing through through the air at Mach 2, but it'll get you excited for the supersonic future.

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American Express® Gold Card

TPG editor's rating

Pros + cons

Pros

Valuable dining and food-related credits
Flexible rewards with airline and hotel transfer partners
Multiple travel and purchase protections
No foreign transaction fees
Access to Amex Offers for additional savings (enrollment required)

Cons

Not as useful for those living outside the U.S.
Some may have trouble using Uber and other dining credits

More details

You may be eligible for as high as 100,000 Membership Rewards® Points after you spend $8,000 in eligible purchases on your new Card in your first 6 months of Card Membership. Welcome offers vary and you may not be eligible for an offer. Apply to know if you’re approved and find out your exact welcome offer amount – all with no credit score impact. If you’re approved and choose to accept the Card, your score may be impacted.
Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
Earn 5X Membership Rewards® points on prepaid hotel stays booked through AmexTravel.com or the Amex Travel App™.
Earn 3X Membership Rewards® points on flights booked through AmexTravel.com, the Amex Travel App™, or purchased directly from airlines.
Earn 2X Membership Rewards® points on prepaid car rentals booked through AmexTravel.com or the Amex Travel App™ and cruises booked and paid through AmexTravel.com.
Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.
Pay It® lets you tap in the American Express® App to quickly pay for small purchase amounts throughout the month and still earn rewards the way you usually do. Plan It® gives you the option to split up big purchases into equal monthly payments with a fixed fee. You’ll know upfront exactly how much you’ll pay.
$120 Dining Credit: Earn up to a total of $10 in statement credits monthly when you pay with the Gold Card at Grubhub (including Seamless), Buffalo Wild Wings, Five Guys, The Cheesecake Factory, and Wonder. This can be an annual savings of up to $120. Enrollment required.
$100 Resy Credit: Get up to $100 in statement credits each calendar year at over 10,000 qualifying U.S. Resy restaurants after you pay for eligible purchases with the American Express® Gold Card. That’s up to $50 in statement credits semi-annually. Enrollment required.
$84 Dunkin' Credit: Earn up to $7 in monthly statement credits after you pay with the American Express® Gold Card at U.S. Dunkin’ locations. Enrollment required.
$120 Uber Cash on Gold: Enjoy up to $120 in Uber Cash annually with your Gold Card. Just add your Card to your Uber account and you'll get $10 in Uber Cash each month to use on orders and rides in the U.S. when you select an Amex Card for your transaction.
Enjoy complimentary Hertz Five Star® Status benefits like skipping the counter at select locations, adding an additional driver at no additional cost*, and vehicle upgrades**. Benefit enrollment and Hertz Gold+ registration are required. *Additional drivers must meet standard rental qualifications and must be a spouse or domestic partner to qualify as complimentary. Other additional drivers subject to fees. **Benefits are subject to availability and vary by location. Additional Hertz program Terms and Conditions including age restrictions apply.
Book two nights or more with The Hotel Collection through AmexTravel.com or the Amex Travel App™ and receive a $100* credit towards eligible charges at over 1,400 upscale hotels worldwide. *Eligible charges vary by property.
Book your travel through the Amex Travel App™ with added peace of mind – backed by American Express® service and support. Only for American Express® Card Members.
Whenever you need us, we're here. Our Member Services team will ensure you are taken care of. From lost Card replacement to statement questions, we are available to help 24/7.
No Foreign Transaction Fees.
Annual Fee is $325.
Terms Apply.

Pros

Valuable dining and food-related credits
Flexible rewards with airline and hotel transfer partners
Multiple travel and purchase protections
No foreign transaction fees
Access to Amex Offers for additional savings (enrollment required)

Cons

Not as useful for those living outside the U.S.
Some may have trouble using Uber and other dining credits

You may be eligible for as high as 100,000 Membership Rewards® Points after you spend $8,000 in eligible purchases on your new Card in your first 6 months of Card Membership. Welcome offers vary and you may not be eligible for an offer. Apply to know if you’re approved and find out your exact welcome offer amount – all with no credit score impact. If you’re approved and choose to accept the Card, your score may be impacted.
Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
Earn 5X Membership Rewards® points on prepaid hotel stays booked through AmexTravel.com or the Amex Travel App™.
Earn 3X Membership Rewards® points on flights booked through AmexTravel.com, the Amex Travel App™, or purchased directly from airlines.
Earn 2X Membership Rewards® points on prepaid car rentals booked through AmexTravel.com or the Amex Travel App™ and cruises booked and paid through AmexTravel.com.
Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.
Pay It® lets you tap in the American Express® App to quickly pay for small purchase amounts throughout the month and still earn rewards the way you usually do. Plan It® gives you the option to split up big purchases into equal monthly payments with a fixed fee. You’ll know upfront exactly how much you’ll pay.
$120 Dining Credit: Earn up to a total of $10 in statement credits monthly when you pay with the Gold Card at Grubhub (including Seamless), Buffalo Wild Wings, Five Guys, The Cheesecake Factory, and Wonder. This can be an annual savings of up to $120. Enrollment required.
$100 Resy Credit: Get up to $100 in statement credits each calendar year at over 10,000 qualifying U.S. Resy restaurants after you pay for eligible purchases with the American Express® Gold Card. That’s up to $50 in statement credits semi-annually. Enrollment required.
$84 Dunkin' Credit: Earn up to $7 in monthly statement credits after you pay with the American Express® Gold Card at U.S. Dunkin’ locations. Enrollment required.
$120 Uber Cash on Gold: Enjoy up to $120 in Uber Cash annually with your Gold Card. Just add your Card to your Uber account and you'll get $10 in Uber Cash each month to use on orders and rides in the U.S. when you select an Amex Card for your transaction.
Enjoy complimentary Hertz Five Star® Status benefits like skipping the counter at select locations, adding an additional driver at no additional cost*, and vehicle upgrades**. Benefit enrollment and Hertz Gold+ registration are required. *Additional drivers must meet standard rental qualifications and must be a spouse or domestic partner to qualify as complimentary. Other additional drivers subject to fees. **Benefits are subject to availability and vary by location. Additional Hertz program Terms and Conditions including age restrictions apply.
Book two nights or more with The Hotel Collection through AmexTravel.com or the Amex Travel App™ and receive a $100* credit towards eligible charges at over 1,400 upscale hotels worldwide. *Eligible charges vary by property.
Book your travel through the Amex Travel App™ with added peace of mind – backed by American Express® service and support. Only for American Express® Card Members.
Whenever you need us, we're here. Our Member Services team will ensure you are taken care of. From lost Card replacement to statement questions, we are available to help 24/7.
No Foreign Transaction Fees.
Annual Fee is $325.
Terms Apply.

Comments

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Rewards rate
Rate	Category
4X	Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
4X	Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
5X	Earn 5X Membership Rewards® points on prepaid hotel stays booked through AmexTravel.com or the Amex Travel App™.
3X	Earn 3X Membership Rewards® points on flights booked through AmexTravel.com, the Amex Travel App™, or purchased directly from airlines.
2X	Earn 2X Membership Rewards® points on prepaid car rentals booked through AmexTravel.com or the Amex Travel App™ and cruises booked and paid through AmexTravel.com.
1X	Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.

Rewards rate
Rate	Category
4X	Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
4X	Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
5X	Earn 5X Membership Rewards® points on prepaid hotel stays booked through AmexTravel.com or the Amex Travel App™.
3X	Earn 3X Membership Rewards® points on flights booked through AmexTravel.com, the Amex Travel App™, or purchased directly from airlines.
2X	Earn 2X Membership Rewards® points on prepaid car rentals booked through AmexTravel.com or the Amex Travel App™ and cruises booked and paid through AmexTravel.com.
1X	Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.

Rewards rate
Rate	Category
4X	Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
4X	Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
5X	Earn 5X Membership Rewards® points on prepaid hotel stays booked through AmexTravel.com or the Amex Travel App™.
3X	Earn 3X Membership Rewards® points on flights booked through AmexTravel.com, the Amex Travel App™, or purchased directly from airlines.
2X	Earn 2X Membership Rewards® points on prepaid car rentals booked through AmexTravel.com or the Amex Travel App™ and cruises booked and paid through AmexTravel.com.
1X	Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.

Rewards rate
Rate	Category
4X	Earn 4X Membership Rewards® points per dollar spent on purchases at restaurants worldwide, on up to $50,000 in purchases per calendar year, then 1X points for the rest of the year.
4X	Earn 4X Membership Rewards® points per dollar spent at US supermarkets, on up to $25,000 in purchases per calendar year, then 1X points for the rest of the year.
5X	Earn 5X Membership Rewards® points on prepaid hotel stays booked through AmexTravel.com or the Amex Travel App™.
3X	Earn 3X Membership Rewards® points on flights booked through AmexTravel.com, the Amex Travel App™, or purchased directly from airlines.
2X	Earn 2X Membership Rewards® points on prepaid car rentals booked through AmexTravel.com or the Amex Travel App™ and cruises booked and paid through AmexTravel.com.
1X	Earn 1X Membership Rewards® point per dollar spent on all other eligible purchases.

Comments

Comments

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TPG featured card

TPG featured card

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

Comments

TPG featured card

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

American Express® Gold Card

Pros + cons

Pros

Cons

More details

Pros

Cons

Rewards rate

Intro offer

Annual fee

Regular APR

Recommended credit

Rewards rate

Intro offer

Annual fee

Regular APR

Recommended credit

Rewards rate

Intro offer

Annual fee