If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Cold weather ops
Many GA a/c are restricted to operations above a certain temperature. In my
case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C (or F) at 9000 feet. But, the POH doesn't say why. Anybody know? moo |
#2
|
|||
|
|||
Many GA a/c are restricted to operations above a certain temperature. In my
case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C (or F) at 9000 feet. But, the POH doesn't say why. Anybody know? Yes. Any colder than that and you freeze your ass off, moving the CG too far forward and out of the operating envelope. G www.Rosspilot.com |
#3
|
|||
|
|||
It could be all kinds of things. My airplane has high and low start
restrictions and an absolute temperature limit. The start restrictions are based on the possibility/probablility of a hot start and the absolute temperature limit is based on the fuel gelling. Mike MU-2 "Happy Dog" wrote in message . .. Many GA a/c are restricted to operations above a certain temperature. In my case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C (or F) at 9000 feet. But, the POH doesn't say why. Anybody know? moo |
#4
|
|||
|
|||
"Happy Dog" wrote in message ...
Many GA a/c are restricted to operations above a certain temperature. In my case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C (or F) at 9000 feet. But, the POH doesn't say why. Anybody know? moo A recent thread on the Diamond Owners Website addressed the -20 degree C limitation for the Diamond Star. According to Diamond, this is due to temperature limitations on the avionics. Steve |
#5
|
|||
|
|||
"Steve Chalfin" wrote in message
Many GA a/c are restricted to operations above a certain temperature. In my case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C (or F) at 9000 feet. But, the POH doesn't say why. Anybody know? A recent thread on the Diamond Owners Website addressed the -20 degree C limitation for the Diamond Star. According to Diamond, this is due to temperature limitations on the avionics. Yeah. I've heard this. But why the change with altitude? moo |
#6
|
|||
|
|||
In article , Happy Dog wrote:
A recent thread on the Diamond Owners Website addressed the -20 degree C limitation for the Diamond Star. According to Diamond, this is due to temperature limitations on the avionics. Yeah. I've heard this. But why the change with altitude? At a rough guess, because at sea level you're likely to be just starting out so everything's cold at that point. At 9000' you're flying, the engine's hot, and you can provide enough heat to prevent the avionics from going out of spec until a colder temperature. -- Dylan Smith, Castletown, Isle of Man Flying: http://www.dylansmith.net Frontier Elite Universe: http://www.alioth.net "Maintain thine airspeed, lest the ground come up and smite thee" |
#7
|
|||
|
|||
Deice fluid freezes if the temp gets low enough (below about -40 but
check this). Flaps wont come up due to being frozen etc. "Mike Rapoport" wrote in message thlink.net... It could be all kinds of things. My airplane has high and low start restrictions and an absolute temperature limit. The start restrictions are based on the possibility/probablility of a hot start and the absolute temperature limit is based on the fuel gelling. Mike MU-2 "Happy Dog" wrote in message . .. Many GA a/c are restricted to operations above a certain temperature. In my case (Zlin 242L) the restriction is -20C at sea level and goes down to -40 C (or F) at 9000 feet. But, the POH doesn't say why. Anybody know? moo |
#8
|
|||
|
|||
Dylan Smith wrote: At 9000' you're flying, the engine's hot, and you can provide enough heat to prevent the avionics from going out of spec until a colder temperature. There are airports higher than that in the States, so I doubt that's the reason. George Patterson Love, n.: A form of temporary insanity afflicting the young. It is curable either by marriage or by removal of the afflicted from the circumstances under which he incurred the condition. It is sometimes fatal, but more often to the physician than to the patient. |
#9
|
|||
|
|||
|
#10
|
|||
|
|||
|
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
FA: WEATHER FLYING: A PRACTICAL BOOK ON FLYING | The Ink Company | Aviation Marketplace | 0 | November 5th 03 12:07 AM |
Cold Weather Flying | Jose Vivanco | Owning | 27 | October 16th 03 11:27 AM |
Eurofighter - useless in cold weather and fog? | Peter Kemp | Military Aviation | 9 | September 13th 03 04:37 AM |
XMRadio Satellite Weather Has Arrived | Richard Kaplan | Piloting | 37 | September 2nd 03 02:51 PM |
And they say the automated Weather Station problems "ASOS" are insignificant because only light aircraft need Weather Observations and forecasts... | Roy | Piloting | 4 | July 12th 03 04:03 PM |