scientists do not ask questions.
I am simply asking questions because I do not know the answers.
If you know the answer to the questions then share it with us.
Some people resort to name calling here and that does not bring any answers, so I must continue to ask questions.

You write about scientific method:

principles and procedures for the systematic pursuit of knowledge involving the recognition and formulation of a problem, the collection of data through observation and experiment, and the formulation and testing of hypotheses

http://home.att.net/~tangents/data/rlgdef.htm

The problem is that many people in very responsible positions claim to have seen UFO's.
In this case the UFO implies; a craft that has not been shown or explained to the general public.
The craft may be a terrestrial construct or extraterrestrial construct, in other words if terrestrial construct, then it must be a very secret project.

There are many observations and experiments conducted by many people in the effort to answer such a question.

The observations indicate that there are some types of aircraft flying around that go through the air at speeds that can not be duplicated with known aircraft, these same craft are also able to make very sudden accelerations, stops, hovering, and high speed changes in flight directions.
The high speed direction changes are said to be such that humans could not survive inside such craft due to the very high G forces involved.

My hypothesis is two fold.
1) There are such craft and they are of extra terrestrial construct.
2) We can construct craft that emulate many of the flight characteristics of these UFOs.

My experiments and observations, conducted over the last 50 years, indicate that such craft can be constructed by using presently available methods.

I'd like to discuss the experiments and observations further except for two reasons.
1) The incredible resistance to new ideas from many people.
2) The incredible mentality of very many people on both sides of a war.

The mentality that I am referring to is displayed in these video clips.
I do not endorse killing, and I wish there was a way to prevent people from wanting to kill each other.

I suspect that IF better methods of air transportation were available to people, they would use it for the purpose of ending life.

Sorry, I do not have video depicting the mentality from the opposing or enemy perspective but I suspect that it is similar.

unfavourable mentality one.

unfavourable mentality two.

Caution very graphic.

P.S. I will be away from the computer for some time, lets argue when I come back.