how to start a jet engine dry-run

WT3333 dry engine run

Category:

Science & Technology

Tags:

• aviation
• space
• wt333
• canberra

[Helicopterpilot16]

I've always looked for this! how does the stater work? is it compressed air or somthing?

[timbutdim426]

In a way, its a 250bhp cordite cartridge which burns for about 2 or 3 seconds. This drives a trurbine at the front of the engine and is geared to the main turbine shaft.

[justforever96]

So is that different than an APU turbine? The Harrier has a little mini-turbine engine over the main engine, and uses that to start to engines. I always assumed that it just used regular jet fuel, but I wouldn't know. In fact, I think the F-15 and F/A-18 have that too; it also powers systems while on the line, so they don't need to run power cables to it.

[timbutdim426]

Yea it is different, i work on the apache helicopter. That has an apu for starting the main engines. They both supply air for starting, but in different ways. The apu is itself started from a large hydraulic accumulator. The apu has a air bleed which is then used to turn the main engine over when selected, and also runs the main hyd's and elec's until the engines are up and running. The canberra has the tripple breach start, which is a part of the engine itself. Push button enjoy the ride!

[justforever96]

Is this a Canberra? You say that the air comes from a bleed in the APU turbine; do you mean comp. bleed air, or exhaust gas? Would they both work? I've never heard of a "triple breach". Something to do with the three plumes of smoke that come from around the engine on startup? That would be smoke from the cordite charge? You said below something about a "turbine at the front of the engine". Is that a different turbine? When you spin up an engine, is the force put to the comp. or to the turbine?

[timbutdim426]

Check out google, pictures and moving diagrams of how it all works ;)

[FlingwingGolfer]

ha ha you sure got a big fright, i can see it in the camera shake!

[attackangle]

Is it crazy to want to watch this video at least twice a day?

[Tjita1]

Holy crap, I almost shat myself! There are easier ways of doing that, you know. You don't have to scare the living crap out of people to start a jet engine...

[antidiz]

Goddamn, i'm just watching this and almost dirtied my diapers..

[masso172]

i'd pass out

[Chuckjagermeister]

AVPIN. 

[XTwina]

Can anybodey tell, what sice such a cartidge and such a starter is?

[AgentJayZ]

Wow, never seen an Avon start that way. Very cool.

We start our avons with either the electric starter, or a modified air turbine starter.

We don't feed the fuel until the engine reaches about 1400 rpm, and the main rotor weighs over a thousand pounds.

Here, it sounds like about that speed is reached in about two seconds, so this video shows some very impressive acceleration.

I woud love to see this in person!

[stealhty1]

do you have to keep replacing the starter cartridge every on start

[Quokka57]

Mmmmmm....."Cartridge Start"..... NOICE 

Q:)

[JetA1863]

haha I always love a good cartridge start! They're so rare to see, especially recorded!