12/10/2015
T2 first test flight results:
This wing is really very good. It handled a 10 mph 90 degree crosswind without any issues. Rotate speed is 45 mph and climb out is at 65 mph at around 600 feet per minute with two on board. The prop is presently over pitched and that will be adjusted in later flights.
Stable in turbulence, it bumps around as you pass through, but little input is required for corrections. In turns up to 45 degrees there is no tendency to ‘tuck in’. I have yet to go to 60 degree bank angle - proceeding conservatively at present. It does not appear to need much forward or rearward movement of the control bar to co-ordinate a turn. It will do a shallow turn hands off and it stays where you leave it. Rolling forces are not noticeably heavy.There was no tendency observed for the trike to move to the left, either on climb out or at any speed up to 90 mph. I have not gone beyond 90 mph as yet. The trike hangs where it should in left or right turns. There is no adverse yaw in the trike as it turns left or right.Trim speed is currently 55 mph to 86 mph cross checked by GPS. The ASI is over reading - indicating 60mph and 90 mph respectively. I was planning for 50mph to 80 mph, so I am very happy with what I’m getting.
The wide windshield with the pop out flaps (to allow full forward movement of the control bar) is working very well - no vibration or chatter of the hinged flaps at any speed, and there is no wind blast behind the screen for pilot or passenger. Only the hands get wind blast where they hold the bar outside the shielding of the screen. This is not noticeable when wearing gloves.
The aerodynamic shock covers appear to be doing a good job. They are fixed with different angles of attack to generate rightward forces as the trike speed up and they are doing this exactly as anticipated, so they counteract any left turning forces in the trike.
More test results to follow as weather permits.