Mustang radiator outlet door question

[First time Juke]

P-51D outlet door of the radiator !


I was wondering; how do you operate that door, is it automatic ?

http://ipmsstockholm.org/magazine/2005/12/stuff_eng_detail_p51d_01.htm

[MRussell]

Re: Mustang radiator outlet door question

Please tell me that's not the same "Big Beautiful Doll" that always flew at Oshkosh in the late 80s and early 90s...?

[Dialtapper]

Re: Mustang radiator outlet door question

P-51D outlet door of the radiator !


I was wondering; how do you operate that door, is it automatic ?

http://ipmsstockholm.org/magazine/20...il_p51d_01.htm

It runs off a Robert Shaw electric actuator. It can operated in auto or manual.

[stuntflyr]

Re: Mustang radiator outlet door question

The one hanging is in the Imperial War Museum. When I visited there, it looked like a fibreglass replica, but there was no one to ask.

There is one painted like that at Duxford too.

Ed Shipley had a Mustang painted like that in the 90's in the US.

[First time Juke]

Re: Mustang radiator outlet door question

It runs off a Robert Shaw electric actuator. It can operated in auto or manual.

Thanks Dialtapper..much appreciated.

So when throttle is forward it closes and when back it is wide open or does it read the temperatures somehow ?

Does it affect flying somehow...more sensitive when open etc. ?

How about in Thunder Mustang ?


rgds,

Juke

[51fixer]

Re: Mustang radiator outlet door question

On P-51 B, C, and D both the oil and coolant use a device made by Robertshaw to regulate temperature. It opens and closes the exit doors to regulate the operating temperature. It uses an electric motor and jack screw which is operated by a complex electro/mechanical assembly which uses a temp probe diastat screwed into a coolant or oil line to sense temp. You can manually operate a switch to open or close the doors or switch to Auto and the Robertshaw unit will regulate the temp.
If you look inside one of these you will scratch your head at how complex this little unit is.
Rich

[Shawn Aro]

Re: Mustang radiator outlet door question

was it the JackieC

[440_Magnum]

Re: Mustang radiator outlet door question

Thanks Dialtapper..much appreciated.

So when throttle is forward it closes and when back it is wide open or does it read the temperatures somehow ?

Does it affect flying somehow...more sensitive when open etc. ?

Juke

It's thermal, not controlled by throttle position. Robertshaw is a thermostatic controls company- they make the engine coolant thermostats used in millions of American cars from the 40s thru present, and also home thermostats, industrial controls, etc. Still in business today.

You'd have to ask the pilots how it affects aircraft handling. It adds drag as it opens wider, but other than that I couldn't tell you.

[lowpasskid]

Re: Mustang radiator outlet door question

i've heard one can adjust it so it will provide thrust,no matter how
small an amount.
THE LOW PASS KID