Join Date: Dec 2016
Location: NE Wisconsin
Thanked 5 Times in 5 Posts
Because I'm a glutton for punishment...I went for another ride this morning. My previous ride was mostly along the Bearskin trail which although relatively "flat" still does have grade along it's length. SO...
I headed to Oneida Lake which is pancake flat. I brought my trusty mobile GPS which I carry in one of my small airplanes. I also followed(somewhat) the protocol used in any land speed attempt which is to run the same path each direction and take the average to mitigate wind or any other "environmental" or "geological" aid.
As well...most know the digital dash can either display speed or RPM with the other shown on the needle, so I made two runs comparing each...each way to see what discrepancy may be allowed.
Here's what I learned;
1. The digital and "needle" speeds do not correlate. The "needle" will read the same speed 3.5mph faster. In other words if the needle says "70", in reality the sled is moving only 66.5mph.
2. The digital read is only slightly better and is reading 3mph "high".
3. On the flat lake this morning I averaged only 65.4mph after four runs and timing the "gates" at speed.
SO...(again) what did I conclude? In all probability my "70" was in reality around 67/68 and that the straightaways I ran on the trail were slopped slightly (-) and that also could have skewed the speed a couple MPH or so high.
I have higher confidence that the average I saw today is the "true" top speed(65.4). 60mph was definitely passed...and 70mph although "seen" was probably not correct. I did "see" it, but indeed the 70 was not an accurate speed and may have been "aided".
All in all it was actually fun to do the "work" and satisfy my curiosity.
Now it's time to clean up the Panther for Vintage weekend up in Eagle River starting Thursday!
"One test is worth a thousand expert opinions"-Alvin "Tex" Johnson...Boeing test pilot