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R e :   E r n a g e   -   D e c e m b e r   1 1 ,   1 9 8 9   
 Received : 10/27/07  Estimates of size and distance - 1   Roger PAQUAY   

According to your web site, when the craft turned and moved in the direction of the witnesses, it was at a distance of 1 km (0.62 mile or 3,280 feet), a distance that can be measured on the scaled map. It is precisely that distance of 1 km which is interesting. In fact, I decided to verify the details of the case in VOB1 [the first tome of Vague d'OVNI sur la Belgique, published by SOBEPS in 1991]. On page 91, the witness is quoted as stating that the spotlight he observed when the craft approached had a diameter twice the diameter of the full moon. At that moment, only one big light was seen. This is very interesting as the apparent diameter of the moon is 30 minutes of arc, meaning that the spotlight was viewed under an angle of 1 degree of arc. Considering the distance, the spotlight would have measured 18 m (59 feet !!!), whereas the witness estimates that the three white lights that were seen at the bottom of the craft immediately thereafter were only 10 m (33 feet) apart.

Demonstration: tan 1° = 0.018; distance 1,000 m. In a right-angled triangle with a 1° angle we have: tan 1° = diameter spotlight/distance, or 0.018 = diameter spotlight / 1,000 or diameter spotlight = 0.018 x 1,000 = 18 m !!! A manifest exaggeration.

Waremme, Belgium

[Roger PAQUAY is a Belgian physicist and retired honorary director of a technical school. Mr. PAQUAY is currently drafting a book on the Belgian UFO wave in which estimates given by witnesses and investigators will be analysed mathematically.]

Our reply :

A spotlight of 18 m (59 feet) diameter does indeed seem huge, and although an object with an estimated size of 25 to 45 m could, at least theoretically, carry a lamp of such dimensions, the sketch Mr. A.A. made of the object seems to suggest a much smaller overall size. On this sketch, which we inserted in the lower half of our map of the sighting location, the mass behind the lights is represented by an irregular line drawn around the triangle formed by the three white lights. When we compare the size of this irregular shape with that of the equilateral triangle with sides of 10 m, the overall size of the object could not have been much bigger than 20 m.

In the light of Mr. PAQUAY's calculations, it would be interesting to know if (1) the irregular shape on the above-mentioned sketch can be considered a more or less accurate representation of the overall size of the object (assuming that, at some time during the sighting, the object blocked out part of the background giving the witnesses a clue as to its actual dimensions), and if (2) the spotlight Mr. A.A. and his wife observed, appeared bigger or smaller than the isosceles triangle formed by the three white lights.


 Received : 04/20/08  Helicopter noise - 1   Martin SHOUGH   

In this case, an Army officer, Lt. Col. AMOND [now retired], and his wife, stopped their car on what Wim [VAN UTRECHT] describes as a "lonely road" and wound down the window with "ears pricked" to try and detect any sound from an object of evidently large angular size showing details of lit "panels" or windows as well as various other separate lights which circled apparently nearby for up to 8 minutes.....  read more 

 Received : 05/13/08  Helicopter noise - 2   Martin SHOUGH   

It is correct that an inversion will refract sound towards the surface, and the recommendation to avoid flying in an inversion makes sense therefore. But the inference that flying above the top of an inversion will have the inverse effect of abnormally refracting sound upward is unwarranted I think.....  read more 

 Received : 05/17/08  Helicopter noise - 3   Martin SHOUGH   

Re the Ernage case in particular and silent helicopters in general, I looked a bit further into the sound propagation question and helicopter noise sources. Perhaps this will help us decide the merits of the theory. Anyway I've collected some information for future reference - and just because it's interesting.....  read more 

 Received : 05/26/08  Estimates of size and distance - 2   Martin SHOUGH   

I'd like to point out that Mr. PAQUAY treats Lt. Col. AMOND's "2x moon diameter" light as relating to the angular size of a light source, when clearly this should be treated as an impression of the circle of glare (overloaded retina) caused by this "huge" and "brilliant" light shining into the witness's face......  read more 

 Received : 06/05/08  A response from the prime witness   André AMOND, Col. (Ret.)   

I would like to correct the approach of Mr. PAQUAY who claims that the observation of the "spotlight" was made while the craft was 1,000 m from my observation point. This is COMPLETELY WRONG.......  read more 

 Received : 06/17/08  Estimates of size and distance - 3   Roger PAQUAY   

In his response, dated June 5, 2008, Col. AMOND claims that my distance estimation of 1,000 m for the phase during which the craft turned towards him is completely false and that the real distance at that moment was 100 to 200 m. He also disputes my calculations and qualifies them as unscientific.......  read more 

 Received : 06/22/08  Not a helicopter - 1   Wilfried DE BROUWER, Maj. Gen. (Ret.)   

The Belgian airspace is surveyed by four powerful radars, two military and two civilian, which are all interlinked, i.e. any duty controller can select the image of any of these radars at any one time. All radar registrations are recorded and these recordings are kept during a well determined period......  read more 

 Received : 06/23/08  Witness reliability - 1   Jean-Michel ABRASSART   

A little comment about the strawman argument at the end of Wilfried DE BROUWER's email......  read more 

 Received : 06/23/08  Witness reliability - 2   Grégory GUTIEREZ   

In my opinion, the important information in DE BROUWER's e-mail is not in his last paragraph about the reliability of Col. AMOND. Of course human testimony is not always reliable, but Jean-Michel ABRASSART tends to say that it's NEVER reliable. I think he pushes his argument too far here, turning it into some kind of indisputable doctrine.....  read more 

 Received : 06/23/08  Plasma stealth chopper - 1   Jean-Pierre PHARABOD   

Now I am beginning to wonder : how could it be that the four Belgian radars did not detect these objects in the sky which were neither aircraft nor helicopters...  read more 

 Received : 06/23/08  Not a helicopter - 2   Martin SHOUGH   

Gen. DE BROUWER's first-hand testimony confirms not only that no helicopter should have been flying (as previously reported by Col. AMOND) but that, in point of fact, no illicit helicopter or other aircraft was detected by radars covering the area....  read more 

 Received : 06/26/08  Plasma stealth chopper - 2 / Map confusion   Prof. Auguste MEESSEN   

I will try to contribute to this debate by sharing with you that I have the following documents concerning the Ernage case....  read more 

 Received : 07/02/08  Recapitulating   Martin SHOUGH   

Re your reply to Prof. MEESSEN, you're right, the statement about flight plans in the Defence Minister's reply to the Parliamentary question is different from what we understood Gen. DE BROUWER to say....  read more 

 Received : 07/03/08  Estimates of size and distance - 4   Martin SHOUGH   

Thanks for Mr. PAQUAY's follow-up. I was not (as Mr. PAQUAY believes) suggesting that Col. AMOND was "dazzled" to explain a large image. As he says, an "overloaded retina" is not a very good explanation....  read more 

 Received : 07/06/08  Not a helicopter - 3   Wilfried DE BROUWER, Maj. Gen. (Ret.)   

Allow me to clarify a few points. 1. Your statement: "A helicopter is perfectly capable of executing such a manoeuvre". The report of André AMOND suggests that the object was making a tight turn with a considerable angle of bank (45 degrees?) at very slow speed (20-30 km/h?)....  read more 

 Received : 07/14/08  Helicopters noise - 4 / Banking angles - 1   Joe McGONAGLE   

I don't claim to have the detailed aeronautical experience of General DE BROUWER, but during my own military service, I did have some exposure to helicopters as a passenger and as an observer from the ground.....  read more 

 Received : 07/14/08  Helicopters noise - 5 / Banking angles - 2   Martin SHOUGH   

Thanks for your input Joe. Yes, clearly it can happen that when the conditions for sound propagation and other witness circumstances are unfavourable people can fail to hear helicopters......  read more 

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