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The Collaborative International Dictionary
Bolter

Bolter \Bolt"er\, n. One who bolts; esp.:

  1. A horse which starts suddenly aside.

  2. A man who breaks away from his party.

Bolter

Bolter \Bolt"er\, n.

  1. One who sifts flour or meal.

  2. An instrument or machine for separating bran from flour, or the coarser part of meal from the finer; a sieve.

Bolter

Bolter \Bolt"er\, n. A kind of fishing line. See Boulter.

Wiktionary
bolter

n. 1 A person or thing that bolts, or runs suddenly. 2 (context botany horticulture English) A plant that grows larger and more rapidly than usual. 3 (context flour milling English) A machine or mechanism that automatically sifts milled flour. 4 A person who sifts flour or meal. 5 (context petroleum refining English) A filter mechanism. 6 (context Australia sports English) An obscure athlete who wins an upset victory.

Wikipedia
Bolter

Bolter may refer to:

  • Bolter (aviation), a term in naval aviation when a pilot misses the arrestor cable on an aircraft carrier and performs a go-around
  • Bolter (politics), a party member who does not support the regular nominee of his or her party in American politics
  • Flour bolter, or sifter
  • Bolter or Boltgun is a fictional large .75 calibre or higher Gyrojet hand-held or vehicle-mounted weapon in the Warhammer 40K setting, with the term "bolter" primarily denoing assault rifle versions
  • The Bolter, a 2008 biography by Frances Osborne about Idina Sackville
  • "The Bolter", the narrator's mother in The Pursuit of Love and Love in a Cold Climate by Nancy Mitford
  • Surprise selections for an international sport,especially for first call-up which may lead to their international debut, a term most notably used in Australia and New Zealand for All Blacks
Bolter (politics)

In American politics, bolters are party members who do not support the regular nominee of their party. The "bolt" may occur at the party convention as in 1912 when Theodore Roosevelt and his followers withdrew from the Republican Party (see Progressive party) or it may occur after the convention or primary has been held.

Source: Dictionary of American History by James Truslow Adams, New York: Charles Scribner's Sons, 1940

Bolter (aeronautics)

In naval aviation, a bolter occurs when an aircraft attempting an arrested landing on the flight deck of an aircraft carrier touches down, but fails to catch an arrestor cable and come to a stop. Bolter aircraft accelerate at full throttle and become airborne in order to go-around and re-attempt the landing.

Prior to the development of the angled flight deck, aircraft carrier landing areas ran along the axis of the ship. If an aircraft failed to catch an arrestor cable on the aft (rear) of the ship, it would still need to be stopped prior to hitting aircraft spotted (parked or taxiing) on the forward half of the deck. With aircraft spotted on the forward half of the flight deck, there was not enough room for an aircraft to become airborne again after missing the arrestor wires. Bringing an aircraft that failed to engage an arrestor cable to a stop was accomplished with either a wire "barrier", rigged amidships and raised to catch the aircraft's landing gear, or a net "barricade" that would engage the aircraft's wings. Either method often resulted in damage to the aircraft and required time to disengage. The introduction of jet aircraft for carrier operations in the early 1950s, with their greater mass and higher approach speeds, exacerbated the problem.

The British-developed angled flight deck solved the problem of aircraft that failed to engage an arrestor wire, and created the routine option for aircraft to "bolter". By angling the landing area off the ship's axis, thus "removing" obstructions forward of the landing area, aircraft that failed to arrest – that bolter – simply accelerate down the landing area and become airborne again. Bolter aircraft then climb back to landing pattern altitude and sequence in with other landing aircraft to re-attempt the landing. These bolter aircraft are said to be in the "bolter pattern".

The British first described aircraft that failed to arrest as bolters. When an aircraft bolters on a United States Navy carrier, the Landing Signal Officer (LSO) often transmits "bolter, bolter, bolter" over the radio. United States Navy LSOs 'grade' each carrier landing attempt on a scale of 0-5. Assuming the approach was safe and at least "average", a bolter is graded as 2.5. For unsafe or below average approaches that result in bolter, a grade of 2 is assigned.

Usage examples of "bolter".

Someone had hit his cover with something heavy, a rocket perhaps or a very heavy bolter shell.

One time they landed late in the afternoon, and yet were foolishly sent off, Bolter in charge.

He had long since got his confidence back after the double bolter, and four months of flying had made his decisions crisper.

I have listened to them conferring together and proving beyond a shadow of doubt that the arrival of Bolter at the winning-post in advance of all others is as sure a thing as the arrival of the sun over the horizon in the morning.

LSO call the bolter for 101 over the radio, knew that Bayerly would have been directed out and around for another pass.

Each time an aviator pulled a bolter, it shook his confidence in himself and in his aircraft that much more.

His hand slammed the throttle full forward and his engines thundered with renewed life and power, ready to take him off the deck again in a touch-and-go bolter if his tail hook failed to connect.

One day, after swapping horses many miles from home, he found himself driving a terrified bolter that he only just managed to stop on the edge of a big embankment.

When the wind blows outside, dust still clouds up from the meal bin through the chute into the tattered bolter that hangs crooked in its frame.

He could see that the turret-mounted bolters were already swivelling to bear on him.

As he said it, for the first time since his bolters the night before, Tombstone pictured himself going up again, pictured himself once more bringing the HUD pipper into line with an enemy MiG.

If he boltered for any reason, he and Flap were going to have to swim for it.

The next plane was the Phantom that boltered, and this time he was steadier.

Yet the steeper glide slope fooled him and he was fast all the way, flattened out at the ramp and boltered again.

Rain was ruining the visibility, the sea was freshening, and one of the F-4's had already boltered twice.