I'm sending a IPhone photo from yesterday in my HKS Odyssey at 40 degrees
F. Pretty nice speed for a 680cc engine. Skot
Air Speeds in cold weather
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rahulchoudhary73
Re: Air Speeds in cold weather
that's nice; got me poring over the EMS manual, they've stopped making this one it seems
o CHT2 is higher than CHT1 by ~100 (C, F?); is that normal?
o EGTs seem close to each other, but EGT2 is nearly half of CHT2; feels unusual, thought that a third of the heat went to the exhaust
o does it have a CO monitor?
o what's the 332 reading in the top of the second column?
o what's the 0.43 reading below it?
o what's the service frequency? (apart from the 800hr TBO)
o how long do the temp/pressure probes last? do they get recalibrated too?
r
o CHT2 is higher than CHT1 by ~100 (C, F?); is that normal?
o EGTs seem close to each other, but EGT2 is nearly half of CHT2; feels unusual, thought that a third of the heat went to the exhaust
o does it have a CO monitor?
o what's the 332 reading in the top of the second column?
o what's the 0.43 reading below it?
o what's the service frequency? (apart from the 800hr TBO)
o how long do the temp/pressure probes last? do they get recalibrated too?
r
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rahulchoudhary73
Re: Air Speeds in cold weather
that's nice; got me poring over the EMS manual, they've stopped making this one it seems
o CHT2 is higher than CHT1 by ~100 (C, F?); is that normal?
o EGTs seem close to each other, but EGT2 is nearly half of CHT2; feels unusual, thought that a third of the heat went to the exhaust
o does it have a CO monitor?
o what's the 332 reading in the top of the second column?
o what's the 0.43 reading below it?
o what's the service frequency? (apart from the 800hr TBO)
o how long do the temp/pressure probes last? do they get recalibrated too?
r
o CHT2 is higher than CHT1 by ~100 (C, F?); is that normal?
o EGTs seem close to each other, but EGT2 is nearly half of CHT2; feels unusual, thought that a third of the heat went to the exhaust
o does it have a CO monitor?
o what's the 332 reading in the top of the second column?
o what's the 0.43 reading below it?
o what's the service frequency? (apart from the 800hr TBO)
o how long do the temp/pressure probes last? do they get recalibrated too?
r
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ejbnorfolk
Re: Air Speeds in cold weather
Way to go, Scott !
It's nice to see you in the air.
Ed
It's nice to see you in the air.
Ed
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blaswichk
Re: Air Speeds in cold weather
Yesserie! Cold air equates faster speeds as the engine is getting more dense air and oxygen, and the wing is seeing thicker air for greater lift. And with your HKS, plenty of hot water to tap into for cabin heat. Gotta love those water cooled engines.
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gjcarter34
Re: Air Speeds in cold weather
One thing take into consideration concerning indicated airspeed. Calibrated
airspeed will read correct at sea level, 59 degrees with a pressure
altitude of 29.92. As the temperature decreases true airspeed will also
decrease from what your seeing on your airspeed indicator. On a warm day
above 59 degrees your airspeed indicator will read lower than your true
airspeed. Same goes with changes in pressure altitude, pressure higher than
29.92 with temp and altitude standard - airspeed will read higher than true
airspeed. And then you have density altitude to consider. A great apple app
for this calculation and more is (myE6b), I use it often.
airspeed will read correct at sea level, 59 degrees with a pressure
altitude of 29.92. As the temperature decreases true airspeed will also
decrease from what your seeing on your airspeed indicator. On a warm day
above 59 degrees your airspeed indicator will read lower than your true
airspeed. Same goes with changes in pressure altitude, pressure higher than
29.92 with temp and altitude standard - airspeed will read higher than true
airspeed. And then you have density altitude to consider. A great apple app
for this calculation and more is (myE6b), I use it often.
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wsweidemann
Re: Air Speeds in cold weather
Thanks Ed. Does anyone but me know how great the visibility is from one of these things?
Skot
Skot
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msbelton
Re: Air Speeds in cold weather
Hi Skot,
Well I think I do : )
Took this yesterday on a flight down the Oregon coast.
- Mark
Well I think I do : )
Took this yesterday on a flight down the Oregon coast.
- Mark
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rahulchoudhary73
Re: Air Speeds in cold weather
Niice; is that the river Willamette?
Took this yesterday on my rooftop.
(full rainbow; 41.9 mph winds; state wide hail from cloudtops 4.4 miles high; a 10 year old rain record in a desert bettered in an eve; while an incubating dove in the bathroom window cozily sat through it; let's talk about "unknown winds"..)
Took this yesterday on my rooftop.
(full rainbow; 41.9 mph winds; state wide hail from cloudtops 4.4 miles high; a 10 year old rain record in a desert bettered in an eve; while an incubating dove in the bathroom window cozily sat through it; let's talk about "unknown winds"..)
- Attachments
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moushegiancarl
Re: Air Speeds in cold weather
Couldn't help but notice the note on the panel to aid in trimming the plane.
The trim knob is located in my plane under the seat next to my left leg
I have owned my JT2 Thundergull for 8 years . The person I bought it from said
" Thumb down nose down, Thumb up nose up "
That mental note eliminated any and all potential confusion
And As Mark says,
Happy Flying,
Carl
The trim knob is located in my plane under the seat next to my left leg
I have owned my JT2 Thundergull for 8 years . The person I bought it from said
" Thumb down nose down, Thumb up nose up "
That mental note eliminated any and all potential confusion
And As Mark says,
Happy Flying,
Carl