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I am using a VHF RT, it's power supply requirement is 27 V DC. When this RT becomes unserviceable and I run RT and HUD(Head Up Display of an aircraft), HUD becomes blurred. The power source is the same for both these devices. Though there is no physical connection between these two devices but why it's happening? (Sorry for my bad English)

New member owner of 62 M20C. Power supply to wingtip strobes is dead. Anyone have an extra laying around for sale or any options on a reasonable conversion to LED? Thanks

I just purchased a G model (for those unfamiliar, the medium-length fuselage with the C-model's O-360 180HP carb'd engine). My issue is with the correct power settings to use. I came across this article by Bob Kromer that makes a pretty compelling case for cruising at full-throttle, 2500rpm, 50 degrees ROP all the time above 3,000 feet. Seems like decent advise. I flew a M20F before I bought the G model and it seemed to work well. My issue is that I'm pretty unhappy with the CHT's these settings give me in my G. I don't have any of the cowling mods (nor does the G model have cowl flaps) so the engine definitely runs pretty hot. My normal procedure has been to lean to 400 degrees CHT, which is usually richer than 50 degrees ROP. As a result, my fuel burn is not exactly wonderful. Recently I've been trying my cruise at 2,400 RPM instead of 2,500. My temperatures are WAY better, it allows me to lean out quite a bit more, and I've noticed the fuel savings. I think it's costing me a knot or two, but I feel a lot more comfortable with it. I do not have a fuel totalizer nor digital engine monitor (just the factory analog single-probe EGT/CHT gauge), so I can't really run a detailed comparison. Has anyone had similar experience, and what do you think of the lower RPM in cruise?

Hey Gents, looking for advice before speaking with my mech. Flew my F on a long xcountry and on my return trip experienced some strange and alarming issues. The IAS was about 10 kts lower than what would be normal for the flight conditions and this matched up with what was indicated on the GPS so ruling out a problem with the AS indicator. Engine ran smooth, temps normal etc. here is the mystery, every so often ( about 4 times over a 4 hr flight) the indicated AS and gps derived GS would go back to what would be considered normal with no changes in engine settings. I just had a new prop (scimitar) installed and it had been producing great results up to this point. Anyone else ever see/ hear about this? Take-off power/ acceleration seemed normal but I did notice prop RPM slightly lower than normal on take-off (26 vice 27). Appreciate any thoughts.