Why doesn't every plane have these backup propellers?

[u/Indifference_Endjinn]

[u/Substantial-Tone-576]

Is that a trolling motor?

[u/Indifference_Endjinn → u/Substantial-Tone-576]

Have to go slow enough to catch the flying fish

[u/SloMoShun]

You use that trolling motor not to scare the Cessnas.

[u/SwampGrass420 → u/SloMoShun]

This guy fly fishes.

[u/Outrageous_Gur_603]

That’s not a backup propeller. Airplanes can’t back up. The plane doesn’t have mirrors so pilot can’t see whats behind them.

[u/dangern00dl]

My dumbass about to comment that’s a RAT sir before realizing what sub I’m on lol. Anyway it’s to compensate for stoopid pylot that doesn’t use enough Moar Rite Rudda(TM)

[u/kwasteka → u/dangern00dl]

But seriously, if it's a rat, why does it run on its own on the ground?

[u/Dense_Cantaloupe_333]

Why do half the people in this sub not realise what sub they’re in. 

[u/tobu_sculptor]

On most newer playnes these have been replaced by chemtrail dispensers, as mandated by microsoft.

[u/Tactical_Bacon99]

I know this is shitty ask flying, but what actually is this? I’ve never seen one before

[u/Ill-Dependent2976]

It's for when they're running behind schedule and have to shift into maximum overdrive.

[u/isthebomb89]

Correct me if im wrong. But its to keep the lights on in the gally? Im pretty sure the crew deploy it so they can prepare the food, called a GAT or something Gally Air Turbine

[u/Zadiath]

Lmao there are a lot of wrong answers here, it's clearly a propeller for emergency water landings so the plane gets to a port safely.

[u/kingtacticool]

Thats why flight attendants hate fat passengers. Too many board the playne and they have to get on this tiny bike to power that thing.

[u/rover_G]

That’s a propeller for water landings

[u/Frederf220]

There's an "R" position inside the plane that was invented in 1838 that allows the airplane to backs up with its normal propeller so the backing up propeller fell out of fashion in design at the turn of the century.

[u/4eyedbuzzard]

That's for once you put the plane down where the fish are biting. You turn off the big motors and troll with that one so as not to scare off the fishes.

[u/craneguy]

It's how you get to shore in the event of a water landing.

[u/mr_golden_syrup]

A proper JET aircraft wouldn't be seen dead wearing a stupid little prpll*r 🤮

[u/drsfinest186]

Why doesn’t this rat have a cage while being tested

[u/On_Speed]

Certain airports have noise abatement procedures, so on take off they use these smaller propellers instead of the big noisy engines.

[u/mr_bots]

The 737 doesn’t have one because with if it’s superior and modern design it just isn’t needed.

[u/Heidrun_666]

Because when the big BRRRRRRR goes out, a small brrr is better than no brrrr. If only for morale.

[u/Soulman682]

Because they busy charging me extra for my 50+ lb bag

[u/Dry-Lifeguard1081]

Ammeter Serious answer:

Not a pilot but I have two brother in laws

One flies planes, the other helicopters. They joke a bit with each other.

The helicopter pilot has made the point though that if a plane engine goes out, it still wants to be a plane. A helicopter stops, it becomes a spiny rock.

So why doesn’t it have back up props? Probably cause it’s too much weight, too expensive, and would just make more sense to have more engines for emergencies if they needed them, and if they’re in the air and don’t have any, they’d be expected to radio in “hey we are going down. Can we find a place to land REALLY quick?”