Enormous Cigar shaped craft, no wings, no windows, no sound, incredible rate of speed, over Lake Erie, in Ohio, chased by helicopter.

I arrived at work and parked my car, and proceeded to walk, heading north across the parking lot to the automotive repair shop that I work in. As I was walking , I noticed a very large cigar shaped craft in the sky approx. 10,000 - 20,000 feet up in the air.  It was heading east over Lake Erie at an incredible rate of speed. I watched it for a few minutes to make sure I was actually seeing this. It was an enormous craft, much larger than any conventional aircraft I have ever seen, I presume it would dwarf a B-52 bomber ten fold. I could not see any wings or windows on this craft. It made no audible sound. Upon sighting this craft I yelled for my other 2 co-workers to come and see this craft. They ran outside and spied it just as it left our field of vision. Within 30 minutes went outside to watch a very large helicopter, unmarked and solid grey, with a very large gun fly over our area heading northeast to Lake Erie. For the next 3 months we witnessed Apache helicopters flying patrols along the lake, always flying east, 3 helicopters in each patrol. After a few months the patrols stopped and we never heard or witnessed anything else out of the ordinary.
Date of event is approximate.  The "gun" on the U. S. Navy helicopter may have been a refueling probe, which projects forward from the fuselage a considerable distance, so that a refueling hose does not interfere with the main rotor.  PD