Risky IL-76 Take-off Captured on Video
In light of reporting the BOTH a TODA and a TORA, I will conjecture that the TO may have been perfectly OK...depending upon what was the limiting case AEO/OEI and the size of the TODA [remembering that this is a quad---for first segment considerations of the OEI case] ----and also observing that Vlof was achieved by the end of the runway then
--either---
1. the margin on the AEO case was contained within the clearway
2. the OEI case was predicated on a clearway---but at the end of the TODA ---but how much of the APRT boundaries were declared a clearway?
we simply don't have enough information to conclude anything regarding the legalities of that TO other than that it looked interesting!
--either---
1. the margin on the AEO case was contained within the clearway
2. the OEI case was predicated on a clearway---but at the end of the TODA ---but how much of the APRT boundaries were declared a clearway?
we simply don't have enough information to conclude anything regarding the legalities of that TO other than that it looked interesting!
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you guys need to drop the whole russian 3rd world country poor ops. Thats just BS. Only a fool would say russia is a 3rd world country.
anyways check this out
http://video.google.com/videoplay?do...arch&plindex=1
anyways check this out
http://video.google.com/videoplay?do...arch&plindex=1
"So if it took all the runway on four engines to accelerate to Vlof, would it have been able to do the same had it lost one engine at V1?"
Best foot forward: Sometimes the all engine acceleration is more limiting due to the greater distance traveled with all four donks turning, also the all engin speeds [V3 and V4] are greater perhaps creating further distance or climb gradient limitations---
Best foot forward: Sometimes the all engine acceleration is more limiting due to the greater distance traveled with all four donks turning, also the all engin speeds [V3 and V4] are greater perhaps creating further distance or climb gradient limitations---
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I'm unsure about what exactly the whole 3rd world thing actually means but one thing is for sure; a huge proportion of the russian population are very poor indeed. It's a country where bribery gets you by, the press are tightly controlled by the government (a few journalists with a habbit of publishing embarassing stories have a funny habit of getting bumped off), and democracy is virtually a sham.
I'm unsure what implications all this has on Russian aviation but it can't be positive thats for sure.
I'm unsure what implications all this has on Russian aviation but it can't be positive thats for sure.
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There are a few Russian comments in this video , which one of the others linked me to... I did like the first high speed pass, but the Go-arounds??????
http://www.youtube.com/watch?v=MCF04ixE5ks
Unsure of the aircraft or airline though... Maybe someone can help?
So, back to the original thread, Am I right that, by looking at the climb performance (marginal). The pilot could have calculated correctly, as he only had to achieve only half of the air distance to 35' by the end of the runway, muliplied by 1.15(may have forgotton this) ((unsure of the 1.15 for this type))
Looked pretty exciting either way!!!
http://www.youtube.com/watch?v=MCF04ixE5ks
Unsure of the aircraft or airline though... Maybe someone can help?
So, back to the original thread, Am I right that, by looking at the climb performance (marginal). The pilot could have calculated correctly, as he only had to achieve only half of the air distance to 35' by the end of the runway, muliplied by 1.15(may have forgotton this) ((unsure of the 1.15 for this type))
Looked pretty exciting either way!!!
Last edited by CAR256; 19th Feb 2008 at 23:00. Reason: additional comment...
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Originally Posted by CAR256
Unsure of the aircraft or airline though... Maybe someone can help?
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Thanks Minorite... I thought that it was some sort of Airbus..
Looking at the video again, you can see that the wing does not go close to the ground I originally thought... It was still very low.
Looking at the video again, you can see that the wing does not go close to the ground I originally thought... It was still very low.
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Thanks Minorite... I thought that it was some sort of Airbus..
Looking at the video again, you can see that the wing does not go close to the ground I originally thought... It was still very low.
Looking at the video again, you can see that the wing does not go close to the ground I originally thought... It was still very low.
Do a Hover - it avoids G
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I am a little surprised that nobody seems to have considered that the crew deliberately did not rotate until the end of the runway - from what I know of one or two Russian pilots that would have appealed to their sense of humour.
If they actually were running out of runway and dragged it off in desperation at the end I would have expected a faster rotation to a higher nose attitude.
There are wind up merchants out there in real life not just on the internet.
If they actually were running out of runway and dragged it off in desperation at the end I would have expected a faster rotation to a higher nose attitude.
There are wind up merchants out there in real life not just on the internet.
Sometimes the all engine acceleration is more limiting due to the greater distance traveled with all four donks turning, also the all engin speeds [V3 and V4] are greater perhaps creating further distance or climb gradient limitations---
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Isn't the all engine case sometimes more limiting as you have to add a safety factor to it? (As the all engine case is so likely, and the OEI case very unlikely)
The engine out case can just be the net performance if I remember correctly (and I probably can't).
i.e.
4 engine TOD required = 1000m
3 engine TOD required = 1100m
1,000m x 1.15 = 1150m, more limiting than the engine out case.
The engine out case can just be the net performance if I remember correctly (and I probably can't).
i.e.
4 engine TOD required = 1000m
3 engine TOD required = 1100m
1,000m x 1.15 = 1150m, more limiting than the engine out case.
Fullwings, If I dig out my old 707 AFM perhaps I can find A few cases where AEO limits TOD instead of OEI as this phenomenon was a common occurrence in older type
Jb5000,the TOD listed in the AFM already accounts for the 15% margin on the most limiting case
so, if TODR =1000m then TOD =1000m and the TODA must be at least 1000
Jb5000,the TOD listed in the AFM already accounts for the 15% margin on the most limiting case
so, if TODR =1000m then TOD =1000m and the TODA must be at least 1000
Last edited by Pugilistic Animus; 20th Feb 2008 at 21:13. Reason: to remove some tech errors and clarify
I have watched a couple of IL76s take-off from Amman(Marka) - runway 24looks like a ski slope - and the video has pretty much the same profile. The only difference at Marka is about 8 miles of dense housing in front of and beneath you.....