Finally we got the permission to test fly this first German Norden.
. This particular plane has for the first time a shorter wing span (4 kg lighter due to this mod) and has shown to be more agile above 110-120 km/h (not forgetting that the Norden is already an agile machine), sligtly faster in cruise and with a stronger climb speed, being this the major result!
For our customers, we will offer by next Spring a kit to retrofit all the previous wings too. Today we decided to test the plane also with the 31” Alaskan bushwheels, to verify the performances on the same day, with the same pilot and plane, simply because on some markets, where there are less strict limits about the max allowed empty weight, our customers could install them too.
Here the results with a single pilot on board
Cruise Speed :
4.600 rpm
with 22” tires : 155 km/h – 96 mph
with 31” tires : 152 km/h – 94 mph
4.800 rpm
with 22” tires : 164 km/h – 102 mph
with 31” tires : 161 km/h – 100 mph
5.000 rpm
with 22” tires : 178 km/h – 111 mph
with 31” tires : 169 km/h – 105 mph
5.200 rpm
with 22” tires : 184 km/h – 114 mph
with 31” tires : 178 km/h – 111 mph
5.400 rpm
with 22” tires : 193 km/h – 120 mph
with 31” tires : 184 km/h – 114 mph
5.600 rpm
with 22” tires : 202 km/h – 126 mph
with 31” tires : 188 km/h – 117 mph
max speed reached today with 22” tires > 215/217 km/h – 135 mph
Climb Speed :
at 100 km/h – 62 mph : 1.950 ft/m
at 110 km/h – 68 mph : 2.250 ft/m
at 120 km/h – 75 mph : 2.350 ft/m
Stall Speed :
clean wing : 73 km/h – 45 mph
1st notch of flaps : 70 km/h – 43 mph
2nd nocth of flaps : 66 km/h – 41 mph
2nd notch of flaps + slats : 60 km/h – 37 mph
3rd notch of flaps : 63 km/h – 39 mph
3rd notch of flaps + slats : 53 km/h – 33 mph
(We have room to add another notch of flaps and we are planning to test this soon).
Note:
with the Rotax 916iS, the reported very good level of performances reached today and specifically the Climb Speed, could have been even stronger. We are sure that even the new CS prop, that we recently tested on another Norden, could have contributed to get even higher results. We will test as soon as possible this new CS prop on this plane and we will compare the results.
