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Listers,
Just an update for today.
N420HP completed 2.25 hours of flying today. We had a slight delay getting going this morning as we need to replace the Gear Box temp sensor. We had four hops of just over 40 minutes each and found that we did indeed solve the high oil temp problem. All other systems are working very well. Pulled the chip detector from the gear box this evening and showed no metal at all, at least none to be seen with the naked eye. We took an oil sample that will go out tomorrow. I shot some really fun air to air stuff which is about nine minutes long. I have that down loaded to my computer but have no idea how to get it up where people can see it, anyone help in that department. The file is about 23MB. Anyhoo, the engine continues to sing. One alteration that we are making tomorrow is to install a fuel selector that has a return to both tanks. This comes about as the owner had selected one that only had a return to one tank. Initially this was thought to be ok but we find that the twin fuel pumps produce much more return than we expected. The left tank was used up fast as more fuel was being returned to the right tank than what the engine was using, so basically we were just pumping fuel to the engine and the right tank. Not a hard problem to fix. As a note we used a Cirrus SR22 as a chase plane for our testing and it has worked out well. We have taken the aircraft to 8000 feet so far and just up to 180KTS IAS. No stall work has even been considered yet. The owner made his first solo this evening and that is where my video comes from.
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