Slightly confused reg. start-up

[Fred00]

I've just started to get into this bird and I have a couple of questions regarding the start-up procedure.

 

1) Ignition/ventilation switch: What does this do and what does the different positions do (Vent/left/right).

 

2) Fuel shut-off valve switch: Manual says to set it in either closed (left) or open (right) position. But what does it do and when is the position of this switch important?

[Zeus67]

I've just started to get into this bird and I have a couple of questions regarding the start-up procedure.

 

1) Ignition/ventilation switch: What does this do and what does the different positions do (Vent/left/right).

This switch controls which jet starter igniter is going to be used.

VENT = Simulate engine start, for maintenance only.

G = Use left igniter.

D = Use right igniter.

 

By default it starts with the G position.

 

 

2) Fuel shut-off valve switch: Manual says to set it in either closed (left) or open (right) position. But what does it do and when is the position of this switch important?

 

As it name implies it cuts fuel supply to the engine. When the cover is up and the switch is to the left, the engine does not receive fuel. When the switch is to the right or the cover is down, which means that the switch is to the right, the engine is receiving fuel.

 

That is the best simple explanation I can give. :smartass:

[Frederf]

I always thought it was weird and perhaps physically impossible that the fuel cutoff switch guard was able to fit its window over the tip of the switch in both switch positions.

[Zeus67]

I always thought it was weird and perhaps physically impossible that the fuel cutoff switch guard was able to fit its window over the tip of the switch in both switch positions.

 

It does and our modeler did a good job. Unfortunately the switch location made it very hard to code the switch/cover movements.

[Fred00]

Ah, then it all makes sense. Thanks for the quick reply! :)