It has recently come to my attention that real life takeoff times / length is much longer compared to the length of time that it takes aircraft to takeoff in Infinite Flight. To be absolutely clear, this is not a feature request so please do not request for me to change the topic location. This is a report into whether IF should have an overhaul of timing of takeoff. I will conclude, in the conclusion, if this should happen or not and will take comments into account and can change this decision.
This report will be made of a couple of components, a bit like a school science report:
~ Within the introduction will be what the topic will be about
~ The data will include real life data from Airbus and Boeing, including videos from amatuer videographers and will be compared to IF videos from me.
~ The conclusion will deduce whether FDS might need to replan IF’s takeoff length.
Many airline pilots say that takeoff times vary depending on the altitude on the airport, temperature, weight of the aircraft and any deviation in the runway. This is conclusively true and the amount of time and length (ft) does vary depending on these variables. A retired airline Pilot, John Cox, said in a “USA Today” interview; “a twin-engine jet will have an average takeoff run of 30 – 35 seconds” he also said “It will vary depending on the altitude of the airport, the weight of the airplane and the outside temperature. The lift-off speed (VR) will also vary depending on the weight.” John Cox added that, “It is not uncommon for the ground run of a four-engine jet at heavy weights to exceed 50 seconds; this is due to the thrust-to-weight ratio being less.” These quotes obviously explain to us that 4 engine aircraft have a longer takeoff time, clearly due to being heavier and holding a much larger capacity of people, fuel and cargo,
If we were to have such a day that was perfect at an airport with 0 feet of altitude and with a runway that was completely level, we would be able to discover whether an overhaul is needed. Yes, fortunately we can have perfect weather conditions - 15°c, 0 winds and at visibility of 50km - in IF, however, this is not possible with the unpredictability of Earths climate and weather accord. Winds can change in seconds and I’m sure I will never be able to find this “perfect” day on YouTube showing specific aircraft that I will report on.
To the best of my 14 year old ability, I will create a fair test; using the required controlled, dependent and independent variables but this will not be University/College level. And, to be honest, I don’t think anybody could properly or perfectly discover the exact outcome.
In this test I will be concluding on twin and quad engine jets. However, I will be mainly including Long Haul Jets, including;
Let me know if there are any more longer ranged aircraft that you would like me to include
Now, onto the main part.
Now, we will be looking at the highlighted line, simply because it has the required weather conditions for my testing: sea level, 15°c, flaps 0.
Seen in this picture, as the weight becomes heavier, it has a longer takeoff field length. At MTW (766,000lb) the aircraft needs a longer runway length but at a airport at -4.8 degrees the air is so thin it wouldn’t need as much length, only speed.
From 1’18 to 2’18 the 777-200lr is taking off. This takeoff takes a full minute, there wouldn’t be - in any situation - where it would take a minute for an aircraft to takeoff in Infinite Flight.
Shown in this video that I have taken myself the takeoff of a MTOW 777-200lr takes 50 seconds. The video above from an amateur videographer shows that it takes up to 1 minute for it to full takeoff. I would think that for safety reasons that flight wouldn’t be at MTOW, making my point even clearer; the 777-200lr’s takeoff time should be longer.
YSSY’s 16R - 34L is 13030ft long. In this picture, however, the plane hasn’t even used 3/4 of the amount. At MTOW, the aircraft should probably use as much as that. It has used up to 8000ft. From the PDF file from earlier, it shows that it needs up to 10,000ft with those conditions and at MTOW.