Flatlander heading to Boulder, CO -- need sage advice

It was 40 C here in Wichita today, MSL 1332, DA about 4,500.



"Blanche Cohen" wrote in message
...
| Jim Macklin wrote:
| Just be aware that on a hot day in the Denver area, 35C
is
| possible, even higher on the air above the paved runway.
| That can make the density altitude near 10,000 feet on
the
| surface. Take-off performance and service ceilings will
be
| reduced. Climb gradient will be shallow. Pack like a
| backpacker. If you land with a lot of luggage, remember
for
| the return home, UPS and FedEx can reduce you load of
| non-essentials for the departure for home.
|
| Today, it was 37-40C depending where you were.
|
|

Jim Macklin wrote:
It was 40 C here in Wichita today, MSL 1332, DA about 4,500.

"Blanche Cohen" wrote in message
| Jim Macklin wrote:
| Just be aware that on a hot day in the Denver area, 35C
is
| possible, even higher on the air above the paved runway.
| That can make the density altitude near 10,000 feet on
the
| surface. Take-off performance and service ceilings will
be
| reduced. Climb gradient will be shallow. Pack like a
| backpacker. If you land with a lot of luggage, remember
for
| the return home, UPS and FedEx can reduce you load of
| non-essentials for the departure for home.
|
| Today, it was 37-40C depending where you were.

True, Jim. But around here, 37C means 9500 DA on the ground.
And it's why I drove to Leadville for sightseeing, while many
of the Colorado Pilots Assoc. Flew to Montrose (MTJ) for
a weekend flyin. Due to DA, I couldn't take my regular 2.2 hour
flight (couple of passes, no big deal -- usually), and the
low-er-land route would have taken me 5 hours (with a stop for
fuel). Not worth it. I've flown into Leadville, but never
got away from the airport. This time -- typical
tourist, and loved it.

The point is that whenever the ambient temperature is above
ISA standard, the density altitude and thus aircraft
performance will be worse. Hot days in Wichita is like a
standard day in Denver and a hot day in Denver is like
Leadville. With a non-turbocharged engine, the service
ceiling may be at the surface.


--
James H. Macklin
ATP,CFI,A&P

"Blanche Cohen" wrote in message
...
| Jim Macklin wrote:
| It was 40 C here in Wichita today, MSL 1332, DA about
4,500.
|
| "Blanche Cohen" wrote in message
| | Jim Macklin
wrote:
| | Just be aware that on a hot day in the Denver area,
35C
| is
| | possible, even higher on the air above the paved
runway.
| | That can make the density altitude near 10,000 feet on
| the
| | surface. Take-off performance and service ceilings
will
| be
| | reduced. Climb gradient will be shallow. Pack like a
| | backpacker. If you land with a lot of luggage,
remember
| for
| | the return home, UPS and FedEx can reduce you load of
| | non-essentials for the departure for home.
| |
| | Today, it was 37-40C depending where you were.
|
| True, Jim. But around here, 37C means 9500 DA on the
ground.
| And it's why I drove to Leadville for sightseeing, while
many
| of the Colorado Pilots Assoc. Flew to Montrose (MTJ) for
| a weekend flyin. Due to DA, I couldn't take my regular 2.2
hour
| flight (couple of passes, no big deal -- usually), and the
| low-er-land route would have taken me 5 hours (with a stop
for
| fuel). Not worth it. I've flown into Leadville, but never
| got away from the airport. This time -- typical
| tourist, and loved it.
|
|