View source for Mangalore strip

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=Mangalore strip=

[http://epaper.timesofindia.com/Default/welcome.asp?skin=pastissues2&QS=skin%3Dpastissues2%26enter%3DLowLevel The Times of India] 
 
''' ‘Mangalore strip has natural constraints’ '''
 
Prashanth G N | TNN 

Bangalore: A pilot of a private airline with 36 years of military and commercial aircraft flying experience has said that gorges and valleys around Mangalore airport are a ‘‘natural disadvantage to aircraft in emergency, especially during speedy landings and take-offs’’. The airstrip is ‘‘adequate only for normal landings and take-offs’’. 

The pilot, requesting anonymity, has a history of 100 landings at the Bajpe airport. He told TOI that the Mangalore airstrip ‘‘reduces a pilot’s margin of error’’ and doesn’t offer adequate leeway/stopway to an overshooting aircraft as the strip ends in a gorge/valley. 

‘‘While 8,000ft is certainly adequate for normal landing and take-off for ATRs and even Boeing 737s and A320s, if the aircraft has overshot the runway at around 4,000ft, chances of it coming to a stop are naturally slim with a gorge ahead. Even hard braking after overshooting may not help as the speed is high and the aircraft is sliding towards the edge. In a flat terrain like Bangalore airport, which has 13,000ft runway and flat lands well beyond the airstrip, even if you are half-way down the runway, you can stop. That chance is not available with a table-top runway.’’ 

On what terrain he would ideally prefer to operate from, the pilot said: ‘‘Obviously I would opt for a flat terrain that will stretch a long way. If you are at high speed and in an emergency, damage on a tabletop airport would be more.’’
 
But the crucial difference is, a table top airport doesn’t have extra flat land available on all sides, including at both ends of the airstrip. There is simply no chance of survival if you are going down after overshooting. A flat terrain theoretically offers higher chance of survival, especially in a scenario like the Air India Express flight.’’

=Mangalore II=

[http://epaper.timesofindia.com/Default/welcome.asp?skin=pastissues2&QS=skin%3Dpastissues2%26enter%3DLowLevel The Times of India]

How safer Padubidri lost to treacherous Bajpe airport 
Prashanth G N | TNN 

Bangalore: Why was Mangalore airport located at Bajpe, a cliff for all practical purposes, and not at Padubidri, where large tracts of flat land were available? Plans for a thermal plant at Padubidri, distance between Mangalore and Padubidri and sustained industry pressure to retain Bajpe derailed what could have been a safer airport. That’s what Mangalore-based activists seeking relocation for the airport from the late 1980s when the airport was conceived told TOI.
 
While the hilly terrain of Bajpe is located 16 km from Mangalore, Padubidri is about 35 km from Mangalore. ‘‘Padubidri has vast tracts of flat land and is ideal for an airport. We suggested this location in but it wasn’t considered. Instead land was notified for two thermal plants,’’ says Arthur J Perera, Mangalore-based social activist.
 
Activists also point to a sustained campaign from the mid-1980s in Mangalore to have the airport at Bajpe. They say real estate prices were expected to rocket around Bajpe if the airport was sanctioned ‘‘which is what eventually happened’’.

=Mangalore III=

[http://epaper.timesofindia.com/Default/welcome.asp?skin=pastissues2&QS=skin%3Dpastissues2%26enter%3DLowLevel The Times of India]

Short, narrow Bajpe runway fraught with risks: Experts 
Prashant G N | TNN 

Bangalore: Is the Mangalore airport inherently flawed? Should the airport be relocated owing to natural risks? Aerospace experts say flat terrain should be the first choice for an airport and table-top runways only in an “absolute no-choice situation”. 

Consider a few factors why the airport could be inherently flawed: the runway does not have adequate stopway in case of an emergency — there is a stopway alright but not long enough to protect the aircraft in case of overshooting or an engine problem, or any other technical glitch during landing or take-off. The stopway is about 500ft after the runway length of 8,000ft — which means the pilot gets about 8,500ft max. The entire strip of land on which the runway rests is 9,000ft, after which is a deep drop into a gorge. 

“In case of overshooting, the runway cannot be extended beyond 9,000ft simply because there is no land at all. So 500ft of stopway would be too little for an aircraft to rescue itself while landing at high speed,” say aero experts. A strip longer than 8,000ft is not possible at Bajpe. Second, the runway width does not fulfil regulations. From its centrepoint, the runway should be 150metres wide on either side, which adds up to 300 metres, while the strip at Bajpe is 100metres each. The width is recommended by International Civil Aviation Organisation document, said to be the “Bible for runway construction”.
 
In an emergency situation, an aircraft would fall into the deep gorge on either side of the runway if it slips while landing. The airport also does not have an exit that in an emergency would help passengers rush out, or allow rescue teams. Mangalore-based Arthur J Perera, who has been campaigning for relocation of the airport, contends world airport regulations say an airport should have a minimum of 600 acres.