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  1. Today
  2. I have Swift Fuel drop their 94UL off at my house. I usually buy 700 gallons at a time. I have a tank in the truck with quick disconnects for a pump. I pump it into the truck tank and then into the plane with the same pump and filter, so it gets filtered twice. Sounds like a Bourbon: twice-filtered, barrel strength. 🤪 I also run it in my race car, since it has a long shelf life. It works in my old Corvette, too. I run about 25% 100LL in that because it does not have hardened valve seats. Burns really clean. I used to have a yellowish stain along the belly from the exhaust that I would have to remove from time to time. Not anymore. It is a little expensive, but it is still cheaper than what is at my airport.
  3. Yesterday
  4. IMO, just use 91-93 year round. My airplane has sat up to 8 weeks with 93 octane in the tanks, it then started and ran fine. The instability of ethanol-blended fuels may be true from a theoretical standpoint good for a white paper, but for most of us it's something that will just never come up. If the airplane sits longer than you're comfortable with, drain the fuel and put it in your car.
  5. 9 gallons of 90 with 1 gallon of 100 would equate to 91. There is a difference in formula for scaling octane in 100LL vs auto fuel, but we won’t split hairs that fine.
  6. So, in the winter months, if you only have access to 90 octane rec fuel, how would you mix it with 100LL?
  7. Agree on the ethanol topic until winter season comes and airplane may sit for longer periods. 34 gallons is a lot of fuel, and I like to keep tanks towards the fuller side. I'll run rec fuel and a bit of 100LL in the winter simply for the stability. This summer has been 93 plain all the way.
  8. No need to be overly conservative, they will be good for 100hrs or so past that...
  9. Don't worry about ethanol free gas. Just use 91-93 octane with ethanol. It's better for your engine than either 90 octane (detonation risk) or 100LL (lead deposits on valves & gearbox). The CT fuel system is completely compatible with ethanol, and I have never heard of anybody having an issue with ethanol in a CT. I read once that in South Africa there are CTs flying on 20% ethanol fuel.
  10. The only ethanol free gas in my area is only 90 octane
  11. That is exactly what my CFI wants me to do for safety (engine out) reasons. Our airport is like a table on a rocky hill, surrounded by countless acres of forest and marsh. Not a good place for an engine out. I have been practicing what you outlined. Haven't been successful weaning myself off of the throttle yet, but I am getting there. PS: Our airport is infamous for Shear, so it is unusual for steady/no winds... there is almost always some burble going on...
  12. Certainly a handy site, note the info is not always accurate - if not posted "rec fuel" and obvious at the pump then test it. I've been finding the 93 premium by me is only a percent or so ethanol. May be pure and simply the lower grade in the hose from prior sale is mixing in.
  13. Thank you Darrel, I found a Circle K near my house that sells Ethanol free 89 and 93. The rest of Costco and Sams only sell 87 and 93, I can comfortably mix fuel now!
  14. When I fly to Whitney I'm looking for the glow.
  15. I will keep my tires until they look like #cdarza tires
  16. Thank you Darrell, there is one between me and the airport!
  17. You are right! I did see some fuel leak when I was fueling it up to 17 gallon, I'm only fueling it up to 16 gallon now. I buy 24 gallon of gas every 6.5 hour, that is about 3.7 GPH cruising at 4300 RPM and 2 touch downs per 3 hour.
  18. LOL...agree. If the tires cdarza posted are oriented the way they were on the airplane, it looks like there is excess camber and/or toe-out that needs correcting. Unless those tires have 500hrs on them, then I'd leave everything just as it is! gogogo888 if you got 400+ hrs from those tires and they look like that, I think you are good to go.
  19. Not me, but I have a friend that flies like that. He has crossed the country several times in a T6, he goes high, pulls the power way back, leans it out, and just hangs out. He says he can get the fuel burn under 25 gallons per hour.
  20. Good point...I was not giving advice so much as just saying how I do it. Everybody has their own rhythm. For reference my idle RPM is set to the top of the yellow arc on the tach on the ground, ~1750-1800rpm
  21. But who would want to?!? My old back and bladder won't stand up to that level of abuse! I will admit to successfully using an empty Gatorade bottle as a "range extender" on one particular long flight back from out west, but it definitely required the autopilot and a fair degree of engineering and contortion... 🧴
  22. Remember that when giving advice on using idle power that the idle RPM can be as much as 300 RPM different between airplane, and even more. Many of these airplanes when delivered new from the factory had the idle speed set at 2000 RPM or higher, now some will set it as low as 1600. The difference in RPM has a pretty significant effect on glide in the pattern. When giving advice it might be more appropriate to give the RPM at idle in a 60kt glide. When gliding at 60 kts, I like to see around 2250 to 2300 RPM.
  23. I remember that when I started with the CT's in 2007 they advertised that you could fly 1000 miles in a CT. The speed to achieve that was right around 100 knots. The fuel flow at 100 knots does seem to indicate that you could indeed fly 1000 miles with full fuel. From watching the numbers any slower or faster would reduce the range. I agree with Andy that you picked the numbers from the book for 15° flaps, and for -6° flaps the speed should be higher.
  24. In the pattern I usually go to idle power abeam the numbers, and by the time I get to short final I'm often still high and need a slip to get down. That's fine with me, I'd much rather be high than low and I enjoy slipping. I probably end up in a slip on 50% of my landings. I usually land at 30° flaps unless the winds are gusty or unpredictable, then I land at 15°. I also often fly my pattern lower than TPA; my home airport TPA is 1900ft, I usually start there but am already descending by midfield downwind, and am around 1800ft abeam the numbers. That just helps me not have to slip as hard to get down. As I mentioned, I fly a very tight pattern.
  25. I was just reading back through the thread. If you are making long flights and starting with full fuel you could be losing some overboard through the vents. That could increase your fuel usage.
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