Further Investigation and Analysis

by Martin Jasek


It was June 20, 1997, and although I was not to meet Dennis until almost a year later, I happened to be just a few hundred feet away from him. It was Friday afternoon, just 42 hours after Dennis and Bob’s sighting of the small triangle. I took my family out to the Lake Laberge campground to attend a going away picnic for a co-worker.

A conversation ensued; " Where was everybody going for summer vacation? " I mentioned that we were going to Roswell, New Mexico for the 50th Anniversary of the alleged crash of a Flying Saucer. Immediately, one of my co-workers mentioned; "Well, you know what? I was just down by the water, and there was a guy there saying he saw this triangular thing zip over his cabin and out onto the lake and the next day there were several fighter jets which flew down the lake". He also related the man’s description of the strange flapping sound the man heard and how distraught he appeared to be.

Wow ! I immediately rushed down to the lakeshore to speak with the gentleman, but of course he was gone. I wrote down a short description of the incident related to me by the co-worker and made a mental note to try to locate the witness at some later date.

I also recalled that the day before (Thursday, June 19) seeing F-18 fighters flying around and landing in Whitehorse, the day after Dennis and Bob's sighting.  My wife and I went down to the airport to have a closer look at them that day.  We saw several F-18 fighter planes parked on the tarmac. They were American planes and after hearing about the UFO sighting the following day, I thought that it would be a good idea to record that fact in my notebook.

Note: Whitehorse no longer has a military base but is an occasional fuel and overnight stop for military aircraft traveling between Alaska and the rest of the US. About 3 or 4 times per year based on how many times I see them (therefore only  an estimate). Some of these stopovers involve Canadian military planes.

Dennis ended up calling a fellow UFO researcher Lorraine Bretlyn in December 1997. She interviewed him and a brief report was filed with the Annual Canadian UFO Survey organized by Chris Rutkowski out of Winnipeg, Manitoba. We wanted Dennis to fill in more details of the case but we were unable to reach him.

Following a local newspaper article on UFOs we did in May of 1998, Dennis called again and we were pleased to discover that he had conducted his own investigation and research. I met with him and he supplied me with several documents resulting from his research. Dennis’ sincerity and diligence to find out what this object might have been impressed us. He was still fairly keyed up by the incident, as if it happened just weeks ago.

A lot of the research material that he gathered was on unmanned air vehicles (UAVs). He also had written responses from Yukon Government and from Canadian Forces Northern Area (Department of National Defence).  We were quite pleased and thankful for the letters that Dennis received from these two sources - something which is not always forthcoming.  Although they do not provide hard answers they were at the very least courteous to Dennis’ request for information.  


Figure 4 shows an illustration of the object when Dennis first saw it. He estimates that the object was about 30m (100ft) above his cabin. I interviewed Bob his neighbor 120 metres (400ft) to the north and had him point out the location where he first saw the triangle.  He pointed to an area above the treeline, which appeared consistent with Dennis’ estimate of the elevation.

Figure 4. After Dennis first heard the sound, he looked up and first saw the object rapidly flying over his cabin.


triangle6small.jpg (145131 bytes)

triangle7small.jpg (179426 bytes)Figure 5 shows an illustration of the flying triangle as he saw it fly out towards Richthofen Island, just before it started to "shimmy" and perform an abrupt 20 to 30 degree turn to the right.  It then headed for the tip of the island also shown in the photo. Talking to Dennis more about this manoeuvre, he said, "it definitely did not bank to the side" during its sharp turn manoeuvre. He went on to describe the "shimmy" motion as more of a jiggle, almost fluid like.

Figure 5. Just before the object turned rapidly to the right and headed for the tip of the island, it started to "shimmy" at the location indicated.

To aid in velocity calculations, the possible trajectory of the flying triangle is shown in a map of the area (Figure 6). Dennis figured he lost sight of the object near the tip of Richthofen Island (Point "B"). This would put the object about 3 kilometres (1.86 miles) away from the witnesses at the end of the 2 to 3 second sighting. However, since the stereoscopic vision of a pair human eyes can only discern distances up to 150 metres (500 ft), additional analysis was needed to assess if the 3 km distance was reasonable.

Figure 6). Map indicating witness location and the estimated path of the triangular UFO. Witness at point A saw the object disappear from view at point "B", about 3 kilometers away. To make a conservative estimate on the speed of the object, it was assumed that the object may have been too small to be seen at point "C", about 1.5 kilometers away. Map was scanned from a 1:50,000 scale map. NTS# 105E/3E.

This was done by calculating the distance at which an object of that size would have been too small to be seen. Since the object was flying almost directly away from him, it would have been only about 1.2m (4ft) wide. Would a black 1.2 m wide object against a forest green background still be visible at a distance of 3000 metres?  To assess this we conducted an informal test.

We scaled the problem down by a factor of 1000 by cutting out a small 1.2 millimetre (0.05") black square and pasting it on a forest green background. Dennis was able to see this black square up to a distance of 4000 mm (13 ft) away. This would suggest that if the object was 1.2 metres wide that he should still be able to see it at a distance of more than 3 kilometres.  However, to obtain a conservative estimate of the velocity we considered that Dennis may have lost sight of the object half way to the tip of the island, about 1.5 kilometres. The following table shows the possible range of speeds calculated for the triangle based on the two distances and the estimated time range of the sighting.



1.5 km

3 km

2 Seconds

Mach 2.2

2700 km/hr

( 1700 MPH )

Mach 4.4

5400 km/hr

( 3400 MPH )

3 Seconds

Mach 1.5

1800 km/hr

( 1100 MPH )

Mach 3.0

3600 km/hr

( 2200 MPH)

We were surprised to see that even the conservative estimate gave a supersonic velocity, yet the witnesses heard no sonic boom.  The speed ranged from Mach 1.5 to 4.4.  This range is consistent with Dennis' estimate of 2500 MPH (Mach 3.3).

The high speed and lack of sonic boom was strange enough but there were six additional characteristics of the object which appear to be unconventional:

  1. "extremely loud flapping or fluttering sound"
  2. detail on top of craft appeared blurry while edges remained sharp
  3. "shimmy" or "jiggling" motion of the object just before its sudden turn
  4. the sudden and sharp turn with no apparent banking
  5. narrow triangular shape
  6. possible physiological after effects

The characteristics above do seem unconventional or better put, just plain weird. However, they do seem plausible in light of the preceding article from Aviation and Space Weekly on microwave/laser beam powered craft and airspike technology.  Remote power has tremendous advantages; it eliminates the need to carry fuel enabling smaller and cheaper craft.  It is a technology that is making its way into civil applications. Los Alamos Laboratories in New Mexico has been testing a prototype of a Satellite Launch system entirely powered by a high-powered laser beam from the ground. A demonstration was shown on Discovery Canada in October of 1998.  The sound that this prototype made was a series of "popping" sounds.

The flapping or fluttering sound  which Dennis, Bob and Doug heard is interesting since it is suggestive of this pulse detonation engine (a series of small explosions that propels a vehicle forward). Another possibility is that perhaps the fluttering sound was a by-product of some sort of sonic boom masking mechanism which is also suggested in the Aviation and Space Weekly article.  

The blurry effect near the top of the craft my be due to ionized air from the pulse detonation engine and the ionized airspike flowing around the upper body of the craft.

The shimmy or jiggling motion is interesting as well.  Perhaps the microwave power transmission to the craft was increased substantially at this point in anticipation of pending sudden turn.  Perhaps the craft itself wasn't jiggling but the  sudden increase in ionized air around the craft was being pulsed in such a way that it bent light and caused what appeared to be the jiggling motion.

Normally, a conventional aircraft tilts or banks to the side to turn.  The banking aircraft pushes on the air underneath it, this causes a force on the aircraft in the opposite direction causing it to turn.  The lack of  banking of the triangular craft suggests that some other force was used to make it turn.  Perhaps the ionized airspike is focussed unsymetrically creating pressure and drag forces which are different from the left and right side of the craft.  This difference in forces would enable the craft to turn.  Dennis felt that the forces and stresses on the craft would have been extremely high during the turn that he witnessed.

Although the narrow triangular shape is unconventional, it’s not unheard of.  The shape is indicative of hypersonic aircraft such as the envisioned HyperSoar, featured recently on "Discovery Canada" on the Discovery Channel in October of 1998. It is also similar in shape to the "Aurora", the alleged super-secret Mach 7 aircraft. There is some evidence to suggest that the Aurora may also harbor a pulse detonation engine.

Figure 7. An artist's depiction of the HyperSoar. The vehicle is envisioned to carry passengers and will be able to get anywhere in the world under two hours. A 1/3rd scale prototype is estimated to be tested in 2003. Its shape is indicative of hypersonic flight (greater than Mach 5) and similar in shape to the object sighted at Lake Laberge (HyperSoar pictures courtesy of the Lawrence Livermore National Laboratory, Article, More pictures)


What was the cause of the dizziness that Dennis experienced for several days after the incident? Symptoms severe enough for him to make a doctors appointment. It’s unfortunate that he cancelled his doctors appointment after his symptoms disappeared. The dizziness was present while he was lying down or sitting but seemed to go away when he was walking around. An expert medical opinion could possibly be obtained or perhaps an inner ear or other type of specialist is warranted.  This is something that can be looked into further. What would be the effect of microwave or other electromagnetic exposure on humans?  Could it cause dizziness?

Was the object which Dennis and Bob saw powered remotely from a satellite in space or an aircraft flying at a higher altitude? Dennis was nearly underneath the object while Bob was 120 metres away. Was Dennis hit by a beam while Bob was missed since he was a safe distance away or did the object itself emit something that caused Dennis’ dizzy spells?

The September 1995 Popular Science article on HAARP (one of many possibly related articles which Dennis collected) indicates another possibility for his dizzy spells; one of HAARPs applications is to use powerful focused ELF beams to track stealth aircraft. Could such a beam have hit Dennis?


Could have the triangular craft been the Flowchart 2 or a similar UAV? The specifications of the Flowchart 2 indicate that it is powered by a thrust turbine engine using high-octane aircraft fuel. This is not consistent with the strange "flapping sound". I have also recently spoken with Dennis’ neighbor Bob who said, "it was a sound that I have never heard before, certainly not like the sound of a jet engine". The shimmy motion and the sudden turn are not consistent with normal jet aircraft performance either. The Flowchart 2 also has slightly protruding wings at the back of the delta wing shape whereas the craft that Dennis’ saw was perfectly triangular.

The triangular craft is also very different from the recent rash of triangular UFO sightings reported around the world. These are usually huge in size (sometimes 100s of metres across), silent or with a slight hum, often hovering or slow moving and at times departing at incredible speeds. There is often a white light in each corner of the triangle.

Although there are strong indications that this UFO was military related or man made; there is the possibility that it was extraterrestrial in origin. However, there are many sightings of UFOs where the object is totally silent. Why all the noise associated with this sighting? Then again if it were military, why would they be flying such exotic technology so close to a populated area? Unless it was by error.

There are other explanation which we can rule out.  We can basically rule out any natural phenomenon since the object appeared to have structure and acted as if under intelligent control.  It could not have ben an illusion since there were multiple witnesses at different vantage points.  The performance of the craft was outside of the capabilities of a civilian or model toy aircraft.

I also spoke with the Commander of the Canadian Forces Northern Area and he indicated that the military would never test exotic aircraft so close to a civilian population.  He went on to say that there are remote areas where there is a lot of room for such tests.  The Colonel was very receptive to my questions and I had no indication that he wasn't anything but honest.

We are therefore left with two startling explanations; either somebody was flying something at a location where they weren't supposed to or it was the work of alien technology !

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