Sudz or other HTC folks, a few notes on Bf109 shell ejection details

[butch2k]

From the Armament manual it is quite clear that this intake is used for cooling the solenoid. Exhaust is supposed to take place at the top of the wing at the aileron junction. Yet i have seen severe case of powder stains on hte underside so i suspect the airflow inside was not that simple...

[Karnak]

Originally posted by Octavius
So where did they go?  Rattle around in some container near the gun?

In the case of the one Mosquito Mk VI cut away drawing that I have there is a compartment at the bottom of the nose cone that holds the spent .303 cartridges.  The numbered label on the circular hatch on the bottom is labled "Cover to used cartridge-case chamber".

In the case of the Mosquito's nose guns it makes sense really.  If there were ejection slots on the nose cone that would be a greatly disproportionate ammount of drage given the shape.  Such ports would have been obliquely open to high air pressure from the Mosquito's forward movement.  Maybe even enough to prevent the spent cartridges from falling out.

[Pyro]

Originally posted by Karnak
In the case of the Mosquito's nose guns it makes sense really.  If there were ejection slots on the nose cone that would be a greatly disproportionate ammount of drage given the shape.  Such ports would have been obliquely open to high air pressure from the Mosquito's forward movement.  Maybe even enough to prevent the spent cartridges from falling out.

I would suspect the primary difficulty of ejecting those cases would be interference with the cannon installation.  If they just dumped them straight down, they'd pretty much pop out right in front of the cannon muzzles.

[Tilt]

Texts and cut away views show that cannon shells and belt fragments were ducted away and ejected below the fuselage thru two tubes.

I struggle to identify the exact orifices however.



The two directly behind the wheel wells are "covered" and too far out board IMO.

The two slots either side of the centre tank access hatch are the most likely IMO but are not shown on a couple of other belly views I have.

The two covered circles behind the  tank access hatch are the same as the two covers further out on the wings. I think these give access to aileron and flap actuators.


Will spent shells have any mass? could they cause damage to ac flying into them?

[Karnak]

Originally posted by Pyro
I would suspect the primary difficulty of ejecting those cases would be interference with the cannon installation.  If they just dumped them straight down, they'd pretty much pop out right in front of the cannon muzzles.

That's almost certainly it.  I hadn't thought of that.

[Orka]

Those ejection shells ( E-3 ... ) were coming from original E-1 set up, mean  MG17. IMHO.

greets

[Wotan]

Hallo Orka...

How have you been? How is Supongo?

!S

Wotan

[Pyro]

Anybody have ejection details on the 110G's 20mm's?

[Waffle]

not sure if this help - or if you are able to discern anything about the 110s.

[GRUNHERZ]

For Bf110:

30mm eject out of lower sides of nose cone.

Fuselage 20mm eject from 2 holes in center of wing about 1 foot back from the wing leading edge.

20mm gunpod has shell ejection through 2  rectangular ports for its guns.

The pod covers the fusekage ejection holes so the gunpod has a third larger built in ejection port between its 2 ports to channel the spent cases from the fuselage cannon.  

I[]I  <--- Kind of like that, but the bigger port sits maybe 1/3 its length ahead of the 2 smaller ones.

[Waffle]

Images below show what looks to be staggered ejection chutes, which follow the centerline of the blast chutes (openings in front)




Image below show the side ejection chutes




This shows possibly the chutes from the underside - side by side for the g model

[Pyro]

My specific confusion is what happens when the ventral gun pack is carried.  It appears to me that the gun pack would cover up the ejection ports of the standard 20mm's.

Edit- Woops I missed Grun's info.  Thanks a bunch everybody for the pics and info.

[Waffle]

Pyro - not sure if this is correct, but in the cutaway drawing of the different armaments (Picture 5, the gun pod) - on the left hand side of the left canon, through the pod skin cutaway - looks to be that you could possibly see a ejection chute - not sure though...lol