What are these windows/portholes on the English Electric Canberra bomber?
up vote
6
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This may be an obvious question, but I don't know, which is why I'm asking here. I've searched "Canberra canopy porthole" and "window", but didn't get any information. There is a porthole of sorts on the left side of the canopy of this bomber, I'm wondering what it's for.
Photo source.
Here is a view from inside the cockpit:
Photo source.
There also appears to be a similar thing on the bottom of the nose of the aircraft, offset to its right. The following is a screenshot from a video game, as I wasn't to find a photo of this.
I'm tempted to say that this second one is to do with bomb sighting, however if it weren't there, the bomber would have just as good a view, wouldn't they?
military feature-identification
asked Nov 8 at 17:03
Zebrafish
1535
add a comment |
up vote
6
down vote
favorite
This may be an obvious question, but I don't know, which is why I'm asking here. I've searched "Canberra canopy porthole" and "window", but didn't get any information. There is a porthole of sorts on the left side of the canopy of this bomber, I'm wondering what it's for.
Photo source.
Here is a view from inside the cockpit:
Photo source.
There also appears to be a similar thing on the bottom of the nose of the aircraft, offset to its right. The following is a screenshot from a video game, as I wasn't to find a photo of this.
I'm tempted to say that this second one is to do with bomb sighting, however if it weren't there, the bomber would have just as good a view, wouldn't they?
military feature-identification
asked Nov 8 at 17:03
Zebrafish
1535
2
A blown, spherically shaped plexiglass dome will never have the optical qualities of a flat piece of glass, especially with the production technology of the late Forties. So yes, the nose cone window is for bomb aiming.
– Peter Kämpf
Nov 8 at 18:44
You beat me to it w/ your comment Peter-- was in process of adding to my answer
– quiet flyer
Nov 8 at 18:49
add a comment |
up vote
6
down vote
favorite
up vote
6
down vote
favorite
This may be an obvious question, but I don't know, which is why I'm asking here. I've searched "Canberra canopy porthole" and "window", but didn't get any information. There is a porthole of sorts on the left side of the canopy of this bomber, I'm wondering what it's for.
Photo source.
Here is a view from inside the cockpit:
Photo source.
There also appears to be a similar thing on the bottom of the nose of the aircraft, offset to its right. The following is a screenshot from a video game, as I wasn't to find a photo of this.
I'm tempted to say that this second one is to do with bomb sighting, however if it weren't there, the bomber would have just as good a view, wouldn't they?
military feature-identification
asked Nov 8 at 17:03
Zebrafish
1535
This may be an obvious question, but I don't know, which is why I'm asking here. I've searched "Canberra canopy porthole" and "window", but didn't get any information. There is a porthole of sorts on the left side of the canopy of this bomber, I'm wondering what it's for.
Photo source.
Here is a view from inside the cockpit:
Photo source.
There also appears to be a similar thing on the bottom of the nose of the aircraft, offset to its right. The following is a screenshot from a video game, as I wasn't to find a photo of this.
I'm tempted to say that this second one is to do with bomb sighting, however if it weren't there, the bomber would have just as good a view, wouldn't they?
military feature-identification
military feature-identification
asked Nov 8 at 17:03
Zebrafish
1535
asked Nov 8 at 17:03
Zebrafish
1535
edited Nov 9 at 2:45
asked Nov 8 at 17:03
Zebrafish
1535
asked Nov 8 at 17:03
Zebrafish
1535
asked Nov 8 at 17:03
Zebrafish
1535
1535
2
A blown, spherically shaped plexiglass dome will never have the optical qualities of a flat piece of glass, especially with the production technology of the late Forties. So yes, the nose cone window is for bomb aiming.
– Peter Kämpf
Nov 8 at 18:44
You beat me to it w/ your comment Peter-- was in process of adding to my answer
– quiet flyer
Nov 8 at 18:49
add a comment |
2
A blown, spherically shaped plexiglass dome will never have the optical qualities of a flat piece of glass, especially with the production technology of the late Forties. So yes, the nose cone window is for bomb aiming.
– Peter Kämpf
Nov 8 at 18:44
You beat me to it w/ your comment Peter-- was in process of adding to my answer
– quiet flyer
Nov 8 at 18:49
2
2
A blown, spherically shaped plexiglass dome will never have the optical qualities of a flat piece of glass, especially with the production technology of the late Forties. So yes, the nose cone window is for bomb aiming.
– Peter Kämpf
Nov 8 at 18:44
A blown, spherically shaped plexiglass dome will never have the optical qualities of a flat piece of glass, especially with the production technology of the late Forties. So yes, the nose cone window is for bomb aiming.
– Peter Kämpf
Nov 8 at 18:44
You beat me to it w/ your comment Peter-- was in process of adding to my answer
– quiet flyer
Nov 8 at 18:49
You beat me to it w/ your comment Peter-- was in process of adding to my answer
– quiet flyer
Nov 8 at 18:49
add a comment |
2 Answers
2
active
oldest
votes
up vote
9
down vote
It's called a "Direct Vision" (DV) window. The canopies are sealed shut, so the small DV window is provided as a way to open a small hole if required. For example, to communicate on the ground or in the event of icing or other canopy issues.
Edit: I wasn't able to find a formal source, but this page is fairly authoritative:
http://alverstokeaviation.blogspot.com/2016/08/english-electric-canberra-technical-tour.html
answered Nov 8 at 17:21
Dan
4,56511642
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
1
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
add a comment |
up vote
7
down vote
Re the upper "porthole"-- it sure looks like a heated panel for clear vision in extreme icing. Note the resemblance to a "hot plate" in King Air etc. It is undoubtedly glass and can be heated by a heating element (note the wires) to much higher temperatures than the perspex canopy could tolerate. Note that there is one on each side, and this aircraft has side-by-side seating in the cockpit. As has been noted in another answer, it appears to have a hinge and a thumbscrew latch, so it could be opened if needed (e.g., a/c is heavily iced up and electrical power has been lost or can't keep up with the icing-- or just to talk to someone on the ground.)
Your question also references the flat panel on the transparency on the lower part of the nose. It is not clear from the photos whether this is heated or not; it's almost certain that this larger flat panel could NOT be opened. However you'll note that it is very common for aircraft to include a flat glass panel for aiming a bombsight or as a window for a camera in the case of a reconnaissance aircraft. The curved perspex of the rest of the transparency will always have some optical distortion. Note that until fairly recently, many fighter aircraft had a flat windscreen in front of the pilot. Again part of the reason for this was to prevent optical distortion as the pilot looked through the gunsight. If this weren't an issue, the thick armored flat glass of the windscreen could have been "faired" more smoothly by an additional curved piece of perspex in front of it, but this was only rarely done.
answered Nov 8 at 17:18
quiet flyer
1,313324
1
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
4
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
|
show 5 more comments
2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
9
down vote
It's called a "Direct Vision" (DV) window. The canopies are sealed shut, so the small DV window is provided as a way to open a small hole if required. For example, to communicate on the ground or in the event of icing or other canopy issues.
Edit: I wasn't able to find a formal source, but this page is fairly authoritative:
http://alverstokeaviation.blogspot.com/2016/08/english-electric-canberra-technical-tour.html
answered Nov 8 at 17:21
Dan
4,56511642
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
1
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
add a comment |
up vote
9
down vote
It's called a "Direct Vision" (DV) window. The canopies are sealed shut, so the small DV window is provided as a way to open a small hole if required. For example, to communicate on the ground or in the event of icing or other canopy issues.
Edit: I wasn't able to find a formal source, but this page is fairly authoritative:
http://alverstokeaviation.blogspot.com/2016/08/english-electric-canberra-technical-tour.html
answered Nov 8 at 17:21
Dan
4,56511642
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
1
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
add a comment |
up vote
9
down vote
up vote
9
down vote
It's called a "Direct Vision" (DV) window. The canopies are sealed shut, so the small DV window is provided as a way to open a small hole if required. For example, to communicate on the ground or in the event of icing or other canopy issues.
Edit: I wasn't able to find a formal source, but this page is fairly authoritative:
http://alverstokeaviation.blogspot.com/2016/08/english-electric-canberra-technical-tour.html
answered Nov 8 at 17:21
Dan
4,56511642
It's called a "Direct Vision" (DV) window. The canopies are sealed shut, so the small DV window is provided as a way to open a small hole if required. For example, to communicate on the ground or in the event of icing or other canopy issues.
Edit: I wasn't able to find a formal source, but this page is fairly authoritative:
http://alverstokeaviation.blogspot.com/2016/08/english-electric-canberra-technical-tour.html
answered Nov 8 at 17:21
Dan
4,56511642
edited Nov 8 at 17:27
answered Nov 8 at 17:21
Dan
4,56511642
answered Nov 8 at 17:21
Dan
4,56511642
answered Nov 8 at 17:21
Dan
4,56511642
4,56511642
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
1
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
add a comment |
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
1
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Note the wires going to it-- it is heated, don't you think? If it opens, can you identify where the handle or latch is? So perhaps it is heated AND it can be opened?
– quiet flyer
Nov 8 at 17:22
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
Is this both the case for the canopy one and the one on the lower nose? Would you open the port/window completely? If so I'd imagine enormous amounts of wind entering the cabin. @quietflyer Yes, I did notice the wires. Not sure what they're for.
– Zebrafish
Nov 8 at 17:24
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
@quietflyer It certainly makes sense to be heated. It looks pretty clear that the bottom is hinged (7 O Clock our image), with a secured (thumbscrew) handle at the top (1 O Clock)
– Dan
Nov 8 at 17:25
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
I'm thinking that part of the reason it exists, is so it can be heated more strongly than the plexiglass could be. In other words it is glass and can take the direct heat of a heating element that would melt the plexiglass. This answer could be improved by incorporating that idea.
– quiet flyer
Nov 8 at 17:27
1
1
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
That's a very interesting link. In that model the bottom flat window seems to be for bomb sighting. It is also centred, as opposed to the offset ones to the side in my images.
– Zebrafish
Nov 8 at 17:33
add a comment |
up vote
7
down vote
Re the upper "porthole"-- it sure looks like a heated panel for clear vision in extreme icing. Note the resemblance to a "hot plate" in King Air etc. It is undoubtedly glass and can be heated by a heating element (note the wires) to much higher temperatures than the perspex canopy could tolerate. Note that there is one on each side, and this aircraft has side-by-side seating in the cockpit. As has been noted in another answer, it appears to have a hinge and a thumbscrew latch, so it could be opened if needed (e.g., a/c is heavily iced up and electrical power has been lost or can't keep up with the icing-- or just to talk to someone on the ground.)
Your question also references the flat panel on the transparency on the lower part of the nose. It is not clear from the photos whether this is heated or not; it's almost certain that this larger flat panel could NOT be opened. However you'll note that it is very common for aircraft to include a flat glass panel for aiming a bombsight or as a window for a camera in the case of a reconnaissance aircraft. The curved perspex of the rest of the transparency will always have some optical distortion. Note that until fairly recently, many fighter aircraft had a flat windscreen in front of the pilot. Again part of the reason for this was to prevent optical distortion as the pilot looked through the gunsight. If this weren't an issue, the thick armored flat glass of the windscreen could have been "faired" more smoothly by an additional curved piece of perspex in front of it, but this was only rarely done.
answered Nov 8 at 17:18
quiet flyer
1,313324
1
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
4
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
|
show 5 more comments
up vote
7
down vote
Re the upper "porthole"-- it sure looks like a heated panel for clear vision in extreme icing. Note the resemblance to a "hot plate" in King Air etc. It is undoubtedly glass and can be heated by a heating element (note the wires) to much higher temperatures than the perspex canopy could tolerate. Note that there is one on each side, and this aircraft has side-by-side seating in the cockpit. As has been noted in another answer, it appears to have a hinge and a thumbscrew latch, so it could be opened if needed (e.g., a/c is heavily iced up and electrical power has been lost or can't keep up with the icing-- or just to talk to someone on the ground.)
Your question also references the flat panel on the transparency on the lower part of the nose. It is not clear from the photos whether this is heated or not; it's almost certain that this larger flat panel could NOT be opened. However you'll note that it is very common for aircraft to include a flat glass panel for aiming a bombsight or as a window for a camera in the case of a reconnaissance aircraft. The curved perspex of the rest of the transparency will always have some optical distortion. Note that until fairly recently, many fighter aircraft had a flat windscreen in front of the pilot. Again part of the reason for this was to prevent optical distortion as the pilot looked through the gunsight. If this weren't an issue, the thick armored flat glass of the windscreen could have been "faired" more smoothly by an additional curved piece of perspex in front of it, but this was only rarely done.
answered Nov 8 at 17:18
quiet flyer
1,313324
1
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
4
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
|
show 5 more comments
up vote
7
down vote
up vote
7
down vote
Re the upper "porthole"-- it sure looks like a heated panel for clear vision in extreme icing. Note the resemblance to a "hot plate" in King Air etc. It is undoubtedly glass and can be heated by a heating element (note the wires) to much higher temperatures than the perspex canopy could tolerate. Note that there is one on each side, and this aircraft has side-by-side seating in the cockpit. As has been noted in another answer, it appears to have a hinge and a thumbscrew latch, so it could be opened if needed (e.g., a/c is heavily iced up and electrical power has been lost or can't keep up with the icing-- or just to talk to someone on the ground.)
Your question also references the flat panel on the transparency on the lower part of the nose. It is not clear from the photos whether this is heated or not; it's almost certain that this larger flat panel could NOT be opened. However you'll note that it is very common for aircraft to include a flat glass panel for aiming a bombsight or as a window for a camera in the case of a reconnaissance aircraft. The curved perspex of the rest of the transparency will always have some optical distortion. Note that until fairly recently, many fighter aircraft had a flat windscreen in front of the pilot. Again part of the reason for this was to prevent optical distortion as the pilot looked through the gunsight. If this weren't an issue, the thick armored flat glass of the windscreen could have been "faired" more smoothly by an additional curved piece of perspex in front of it, but this was only rarely done.
answered Nov 8 at 17:18
quiet flyer
1,313324
Re the upper "porthole"-- it sure looks like a heated panel for clear vision in extreme icing. Note the resemblance to a "hot plate" in King Air etc. It is undoubtedly glass and can be heated by a heating element (note the wires) to much higher temperatures than the perspex canopy could tolerate. Note that there is one on each side, and this aircraft has side-by-side seating in the cockpit. As has been noted in another answer, it appears to have a hinge and a thumbscrew latch, so it could be opened if needed (e.g., a/c is heavily iced up and electrical power has been lost or can't keep up with the icing-- or just to talk to someone on the ground.)
Your question also references the flat panel on the transparency on the lower part of the nose. It is not clear from the photos whether this is heated or not; it's almost certain that this larger flat panel could NOT be opened. However you'll note that it is very common for aircraft to include a flat glass panel for aiming a bombsight or as a window for a camera in the case of a reconnaissance aircraft. The curved perspex of the rest of the transparency will always have some optical distortion. Note that until fairly recently, many fighter aircraft had a flat windscreen in front of the pilot. Again part of the reason for this was to prevent optical distortion as the pilot looked through the gunsight. If this weren't an issue, the thick armored flat glass of the windscreen could have been "faired" more smoothly by an additional curved piece of perspex in front of it, but this was only rarely done.
answered Nov 8 at 17:18
quiet flyer
1,313324
edited Nov 8 at 19:25
answered Nov 8 at 17:18
quiet flyer
1,313324
answered Nov 8 at 17:18
quiet flyer
1,313324
answered Nov 8 at 17:18
quiet flyer
1,313324
1,313324
1
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
4
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
|
show 5 more comments
1
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
4
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
1
1
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
I'm not a Downvoter, however, "Probably a (guess)" is a very poor answer.
– abelenky
Nov 8 at 17:32
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
Well, I don't think so. Anyone who's seen a "hot plate" in a King Air etc would note the strong resemblance but it's only appropriate to note that one doesn't actually know this for a fact.
– quiet flyer
Nov 8 at 17:34
4
4
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
If we are waiting for a design engineer or pilot to provide a definitive answer we might be waiting a long time. A credible, well reasoned educated guess goes a long way towards generating useful discussion and enhancing understanding.
– Michael Hall
Nov 8 at 17:46
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
Was starting to type the additional info as saw your comment Peter
– quiet flyer
Nov 8 at 18:57
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
This is a good answer now. It also answered another question that was in my mind, why do fighter aircraft have a flat glass front portion on the canopy given that it sacrifices aerodynamics. I think maybe because it's usually thick bulletproof glass, but the view distortion reason seems true also.
– Zebrafish
Nov 8 at 19:20
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show 5 more comments
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2
A blown, spherically shaped plexiglass dome will never have the optical qualities of a flat piece of glass, especially with the production technology of the late Forties. So yes, the nose cone window is for bomb aiming.
– Peter Kämpf
Nov 8 at 18:44
You beat me to it w/ your comment Peter-- was in process of adding to my answer
– quiet flyer
Nov 8 at 18:49