flying blind

fly blind

1. To fly an airplane in extremely low visibility, relying on the plane's instruments instead. The huge plume of ash sent into the air by the volcano forced the pilots to fly blind.
2. By extension, to do something based on guesswork, intuition, or without any help or instructions. Since this is our first attempt at developing an app, we'll be flying blind as we figure out how to get things working correctly. I've never filed my own taxes before, so I'm sort of flying blind.
See also: blind, fly
Farlex Dictionary of Idioms.

flying blind

Proceeding by guesswork, groping one’s way. The term originated during World War I and alluded to poor visibility. Later it was extended to other enterprises, as in, “My predecessor quit without leaving any instructions, so for this first department meeting I’m flying blind.” See also by the seat of one's pants.
See also: blind, flying
The Dictionary of Clichés by Christine Ammer
See also:
  • fly blind
  • be flying blind
  • send someone or something up
  • send up
  • dead-stick landing
  • landing
  • snow down
  • CAVOK
  • angle of attack
  • tight squeeze
References in periodicals archive
In footage from failed United Airlines flight 4390, the pilot is heard telling passengers he had "lost two screens" and was running the risk of "flying blind" if they had continued on their journey.
There is so little reliable, consistent information on police shootings in Texas that the public, lawmakers and police officials are largely flying blind.
When you're flying in a cloud, it's like flying blind."
FLYING BLIND: ONE MAN'S ADVENTURES BATTLING BUCKTHORN, MAKING PEACE WITH AUTHORITY, AND CREATING A HOME FOR ENDANGERED BATS comes from a college professor and novelist who was approached by a biologist to track endangered Indiana bats on his 150-acre Vermont farm.
* Flying blind. While many large companies are aggressively pursuing globalization of their products and brands, the large majority are "flying blind" without the ability to see what's happening globally or make adjustments, according to new research from The Hackett Group.
Kenneth's mother, who met his English dad Ron when he was posted to Cowdenbeath with the Royal Engineers during World War II, has been very much on his mind with the upcoming release of his latest film Flying Blind.
Flying Blind is the first feature film by young Polish director Katarzyna Klimkiewicz, whose short film, Hanoi-Warsaw, won the 2010 European Film Award for Best Short.
Still, it's disappointing that "Flying Blind" retreats into some decidedly blinkered notions of femme behavior.
The Ulsterman, 71, whose most celebrated work Flying Blind was heralded as a "sensational piece of writing" by his friend and contemporary Bleasdale, died at his Liverpool home yesterday morning.
The writer, whose most celebrated work Flying Blind was heralded as a "sensational piece of writing" by his friend and contemporary Bleasdale, died at his Liverpool home yesterday morning.
Flying Blind begins poorly but improves toward the end.
Preliminary reports from flight recorder data indicate that smoke in the cockpit obscured the visibility of pilots who were overheard to be flying blind; the aircraft eventually crashed killing both pilots.
I would like to comment on your "Flying Blind no Longer" article in the November 2005 issue of Communications News.
You are flying blind if this important equipment is not giving you useful data.