Parts manuals don’t say it all

Parts manuals are good for figuring out what a component of an airplane does, but there is no chapter in the manual that lists what each hole is used for! We were perplexed by the 5/32nd holes seen on each side of the P-51 Mustang’s .50-caliber machine guns. Just what did they do? It turns out that are used to boresight the fighter’s guns. Each pair of holes helps correctly orient a boresight fixture, which spans the front of the gun and holds a steel rod inserted into the gun’s barrel. This tool helps armorers shift the gun’s aim up, down, left or right to make all of the fighter’s bullets converge at a single point in space out in front of the aircraft.

More in Life

How did 300 feathers get stuck in that old utility pole?

Artful adornment in Everett is the creation of a retired Pulitzer Prize-winning photographer.

‘Found’: Author and climber a 20-year veteran of mountain rescue

In her second book, Bree Loewen shares her experiences of volunteering with Seattle Mountain Rescue.

Herb Alpert aims to uplift the world in two recent albums

The Tijuana Brass bandleader releases a Christmas record and an album of covers.

Prioritizing permanence and putting down roots

Adapted from a recent online discussion. Dear Carolyn: I’m at a loss… Continue reading

Foo Fighters bounce back with new album ‘Concrete and Gold’

Foo Fighters, “Concrete and Gold”: Can you hate the Foo Fighters? Not… Continue reading

How to shop in the street markets of France

It’s the best way to connect with the nation’s farmers and artisans.

Stock your winter bookshelf with these animal and nature reads

Four new books cover outdoors topics from butterflies to wolves.

Newfangled cooker isn’t for those with tried and true methods

Columnist Jennifer Bardsley recently succumbed to peer pressure and purchased an Instant Pot.

Now is the time to assess your student’s back-to-school plan

Take a good look at how your kids are managing their new routine, class, teacher(s) and homework.

Most Read