Remi
I have the XS Monowheel with the 914 and Airmaster installed.
Your results are about the same as what we got when I also installed the
speed kit mod. I saw a increase of 3 knots average over several runs.
Several of us here in Florida, USA who have the XS monowheels, installed
the speed kits looking for 10 kts advantage. However it was not to
be.When we tried to get answers from the old management team as to why
this large difference in speed, we sure got the Run Around.....
I know in some of the advertisements the old Europa Co. was (is)
advertising 200 MPH cruise speeds for the XS series. I don't know anyone
who is getting that kind of speed. Once again put it down to
manufactures advertising hype.
Jim Brown
N398JB
----- Original Message -----
From: Remi Guerner
To: Europa-List Digest Server
Sent: Thursday, September 13, 2007 3:23 PM
Subject: Europa-List: Monowheel speed kit
The installation of my speed kit is now completed and I made some
speed measurements today. The results are as follows:
Without the speed kit, June 2006: altitude FL75, OAT 10 degrees C,
that is density altitude 8500 ft, full throttle, 5000 RPM, that is
approx 60 percent power, TAS 133 kts.
Same day, same conditions except 4800 RPM, that is approx 55 percent
power, TAS 130 kts.
With the speed kit today: altitude FL75, OAT 11 degrees C, full
throttle, 5000 RPM, TAS 135 kts.
Same conditions except 4800 RPM, TAS 134 kts.
Conclusion: the speed gain is in the 2 to 4 knots range.
All flights were with full fuel, no passenger. Estimated weight:
520kg. All 11 speed kit fairings installed. True airspeed was computed
using the GPS 3 segments method.
Best regards
Remi Guerner
F-PGKL, XS S/N395 monowheel, 912S, Airmaster, 526 hours
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