I made IRIS hover test today, here is some specs of the flight:
IRIS HOVER TEST
OAT 0°C - +1°C
Precipitation 0,1mm/h snow
Firmware V3.1-rc7 Quad, Iris Parameter File - 2013.10.11
Flight mode: Loiter (auto)
TOW 1458g (3 cell 3500mAh stock battery + FPV/telemetry equipment)
Take-off time: 14:56:50
Landing time: 15:00:21
Take-off voltage 12,6V
Landing voltage 11,7V
Flight time 3min 31sec (211sec)
Voltage consumption 0,26V/min
MAh consumption 292mAh/min
Test setup estimated maximum hover flight time @ 10ft AGL (until 3.2V/cell)
Pack Size: 146 x 50 x 25mm
How do you think is it possible to fit such battery inside? It is 5 mm wider.
It is 10 mm longer but wideness is good.
43 x 31 x 137mm
Which one can fit inside how do you think? May be it is possible to physically extand battery bay little bit?