Exhaust turn red al full power on Mk.IX?

[Silver_Dragon]

On a video of a Spitfire AB910 (Mk Vb) on test, the exhaust turn red at full power.

https://www.facebook.com/royalairforce/videos/1641759469454659/

 

We have the similar effect on the Mk.IX? :thumbup:

[MAD-MM]

On a video of a Spitfire AB910 (Mk Vb) on test, the exhaust turn red at full power.

https://www.facebook.com/royalairforce/videos/1641759469454659/

 

We have the similar effect on the Mk.IX? :thumbup:

 

 

You did see this future also many V-12 Engines they run on Test stand, did they also glowing in Flight with Airstream for cooling? On Ground you wouldnt see this effect while probaly the Plane at full power make nose tipp over?

[Yo-Yo]

On a video of a Spitfire AB910 (Mk Vb) on test, the exhaust turn red at full power.

https://www.facebook.com/royalairforce/videos/1641759469454659/

 

We have the similar effect on the Mk.IX? :thumbup:

 

If your eye had the same IR sensitivity as camera sensor you would see it too :) but I never saw neither flame nor red metal glow except it is deep twilight.

[Alicatt]

You should have seen the exhaust manifold on my Vauxhall Viva 2.3 after a hard run, it glowed a bright red, same as the manifolds on my supercharged Mustang engine, they glow red after a good run too and the turbo on my old Escort RS Turbo yep it glowed too :) but you could only see that in the twilight or darkness.

 

I have read reports that the flame and the glow of the exhausts on night fighters and their prey did give them away and why that some night fighters had different designed exhausts and shields to keep them from being spotted at night.

 

Cameras have an IR filter to cut back their sensitivity, some have a combined UV and IR cut filters depending on the specification of the sensor. Modern CCTV cameras and camcorders have filters that can be removed at the press of a button to enhance their low light performance. That has been a feature that I have been using in CCTV for almost 30years now :)

[Yo-Yo]

You should have seen the exhaust manifold on my Vauxhall Viva 2.3 after a hard run, it glowed a bright red, same as the manifolds on my supercharged Mustang engine, they glow red after a good run too and the turbo on my old Escort RS Turbo yep it glowed too :) but you could only see that in the twilight or darkness.

 

I have read reports that the flame and the glow of the exhausts on night fighters and their prey did give them away and why that some night fighters had different designed exhausts and shields to keep them from being spotted at night.

 

Cameras have an IR filter to cut back their sensitivity, some have a combined UV and IR cut filters depending on the specification of the sensor. Modern CCTV cameras and camcorders have filters that can be removed at the press of a button to enhance their low light performance. That has been a feature that I have been using in CCTV for almost 30years now :)

 

Just point any camera in your gadget to the IR LED (any remote control is good for this test) - and you will see "the flames" and "the glow" :).

 

At least my phone camera sees it perfectly as rose-violet spot.

 

By the way, I have seen HUNDREDS of start-ups and runs including TO rating from 1-2 m distance including cloudy and foggy daytime and dawn - no flames, except overpriming firing :) and sporadic shots of late combustion.

[NineLine]

But almost all start ups have some amount of smoke though ;)

 

And we need flames for those times we overprime...

[Davee]

In another currently available SIM that is based upon the BOB, you can see the exhaust glowing but more importantly, you can see the exhaust flame change colour from orange to blue (clear in daylight) when the engine is running properly. (mixture)

 

Also, you can see the flame dancing between the different exhaust ports in the correct firing order. That to me is really emmersive especially in the evening/night missions.

[NineLine]

In another currently available SIM that is based upon the BOB, you can see the exhaust glowing but more importantly, you can see the exhaust flame change colour from orange to blue (clear in daylight) when the engine is running properly. (mixture)

 

Also, you can see the flame dancing between the different exhaust ports in the correct firing order. That to me is really emmersive especially in the evening/night missions.

 

You can see exhaust ports firing in correct order in current ED modules now as far as I know.

[Art-J]

We can? If this i the case, cool. Never paid much attention to it, 'cause I thought it was just some random animation thrown in.

 

While we're at it, I'd like to remind the 190 doesn't have this effect implemented.

[NineLine]

We can? If this i the case, cool. Never paid much attention to it, 'cause I thought it was just some random animation thrown in.

 

While we're at it, I'd like to remind the 190 doesn't have this effect implemented.

 

I dont think Yo-Yo likes random effects when it comes to his engines :)

[MiloMorai]

There is a reason for being named Spitfire.

[Krupi]

I hope R. J. Mitchell doesn't read that! :D

[Davee]

You can see exhaust ports firing in correct order in current ED modules now as far as I know.

 

:thumbup:

 

Just to add, when the engine received damage, the exhaust ports involved skipped the firing order or belched smoke. The damage model of the engine is linked to the graphics engine. Leaning out of the cockpit is a markII eyeball confirmation of the issue.

Edited November 29, 2016 by Catseye

[Friedrich-4B]

A couple of pages from the Merlin 60-70-80 series servicing manual: GENERAL NOTES states that

Exhaust flames will only be observed when an engine is running without an exhaust system or when stub pipes are fitted....CORRECT MIXTURE STRENGTH. A short light blue flame which may be almost invisible in strong light.

 

 

 

The ground crew would light their cigarettes in the flames...:smoke:

Edited November 29, 2016 by Friedrich-4/B

[Harry.R]

There is a reason for being named Spitfire.

 

Yes, an overprime or hot start can do this. Always a bit of a shock for the new Spitfire pilot and ground crew..more for the pilot who will get ribbed by the groundcrew at the next beer call. TE311 is a Mk LF Mk XVIe, but over primes can happen on all the flights aircraft...to the unlucky!

[Alicatt]

Just point any camera in your gadget to the IR LED (any remote control is good for this test) - and you will see "the flames" and "the glow" :).

 

At least my phone camera sees it perfectly as rose-violet spot.

 

Cameras were my profession, I ran a team that advised on what type of cameras and where to put them, part of my job was pre-production field testing CCTV cameras (beta testing in software terms). Latterly before I retired I worked for a camera manufacturer.

 

The old Newvicon tube cameras were extremely IR sensitive and could see heat and flame from fires that you could put your hand on. :)

 

Most cameras today have filters over the sensor to lower their sensitivity to IR and UV light or you would get very weird pictures. Police and forensic science use modified cameras that have had the filters removed and with special lenses to bring out details that are invisible to the naked eye, Fuji made some very nice modified Nikon cameras specially for this role.

[Cripple]

But almost all start ups have some amount of smoke though ;)

 

And we need flames for those times we overprime...

 

Amen! :)

 

 

 

I've got a pic somewhere of a Spit with exhaust shields fitted - I'll try and dig it out. Anyone know if they were fitted to avoid ruining the pilot's night vision, or to avoid giving away one's position at night?

 

(The Spit had a short run as a night fighter. They removed the landing lamps pretty early on IIRC.)

[Harry.R]

It sounds a bit like the ones fitted to Lancasters, if so then it's used as a flame cover and designed to make visual recognition harder at night for the enemy night fighters.

[Friedrich-4B]

It sounds a bit like the ones fitted to Lancasters, if so then it's used as a flame cover and designed to make visual recognition harder at night for the enemy night fighters.

 

The exhaust shields were alloy strips that were secured to both sides of the fuel tank cover. They were supposed to stop the pilot being blinded by the exhaust flames at night and were mainly fitted to some Spitfire Is and IIs, but some Vs also used them.

 

[MiloMorai]

Amen! :)

 

I've got a pic somewhere of a Spit with exhaust shields fitted - I'll try and dig it out. Anyone know if they were fitted to avoid ruining the pilot's night vision, or to avoid giving away one's position at night?

 

(The Spit had a short run as a night fighter. They removed the landing lamps pretty early on IIRC.)

 

Exhaust shields don't do anything to stop giving away the a/c's position.

[Harry.R]

Ah, never seen those before..not quite what I was imagining which are the tube type covers that 'cover' the exhausts stacks and reduce the chances of being spotted by night fighters.

http://s69.photobucket.com/user/galgos1/media/spinnerandshrouds_zpsf7564d38.jpg.html

 

 

The exhaust shields were alloy strips that were secured to both sides of the fuel tank cover. They were supposed to stop the pilot being blinded by the exhaust flames at night and were mainly fitted to some Spitfire Is and IIs, but some Vs also used them.

 

Edited December 3, 2016 by Harry.R