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On to the '10'
Saturday 11th March 2006
Having checked out in the TB200, the additional effort required to check out in the TB10 is just a good poke around the panel and a few circuits. I was booked in at 2pm for just this task, and arrived early to pre-flight G-VMJM since it hadn't flown for a while.
 The pre-flight goes pretty much the same as the TB200, although JM is a slightly older plane than VN, and looks just that little bit less pristine. Then came the fuel test. A warning in the checklist served as a reminder that the fuel gauges are notoriously inaccurate, and a visual inspection of the fuel level inside the tanks is essential. So I undid the fuel filler cap and peered inside. About three quarters full at a guess. A small amount of water had trickled into the tank as I'd opened the cap, so I needed to make sure it was all drained out. Then on to the right wing. I watched helplessly as what seemed like hald a cup full of trapped water trickled into the fuel tank. Damn! After 25 minutes draining fuel into the tester I was still getting big water bubbles!
A break for coffee, and I mentioned the amount of water in the tanks to Paul. "Yep it's pretty bad for that - all the TBs are. It's also much worse on one side than the other. You just need to keep at it!" Another 15 minutes saw the tank running clear.
Ben was to be my instructor for the day. The first thing we did was studied the panel to see what was the same and what was different. No RMI, no stormscope (but the yoke-mounted GPS worked in the same way as the GPS part of the storm scope), some of the switches were in different places, the autopilot was different, there was also a carb heat lever since the engine was not fuel injected.
The plane started up pretty much according to the check list, and we taxied out to Echo for the engine run up and pre take off checks. Just to show how accurate the fuel gauges were, the right side showed three quarters full, but the left was showing zero! "Dodgy sender" Said Ben. "It'll come back in a little while."
The wind was in the North East, so we needed to backtrack to runway 08, coming off at Alpha briefly to allow another aircraft to land. We lined up at the hump and applied full power. Just like the 200, the 10 rotates at 70 (or 75 at MTOW) knots. However best climb is achieved at 26" and 2600RPM, coming back to 24/24 in the cruise. Since we were staying in the circuit, at 800ft I brought the power back to about 17" and 2400RPM.
The first circuit was in normal configuration, and I touched down on the numbers with the stall warner just chirping. The second circuit was flapless. Extending downwind slightly to go round the outside of Heythrop House, I trimmed for 85 knots. Right over the numbers, but landed a little longer, although still well before the hump. The plane had no trouble taking off from the touch and go with no flap set. The final circuit was for a glide approach. "Cut the power when you think you'll be able to make the runway. Don't add any flap until you're sure." I was halfway round base when I cut the power. All the other planes I've flown would make it from there with lots of runway to spare. This plane dropped like a rock! Trimmed for best glide at 85kts and it was still dropping 1000ft per minute! Low over the hedge - still flapless - and down well before the numbers. An object lesson that not everything glides well!
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