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Turbine Refrigeration unit of C-130B ac


eliasafr
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we are using turbine refrigeration unit P/N:203720-1 for C-130 B ac.The consumption rate is very high. How can we recover the problem......? We have the ac ser no:  3553, 3676, 3589 & 3647. Can we use some other models of turbine refrigeration unit in our aircraft....?

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Use the latest Honeywell part number 203720-3-2, which are modified with ceramic bearings and the oil system is converted from dry sump to wet sump, with a dipstick for checking service level.   This change requires no modifications.

Alternatively, if you really want to improve the performance and reliability, go with a system upgrade such as E2H(TM) ECS. 

For the flight deck, the newest turbine part number is 203430-4-1.  Same improvements as described above for 203720.  Also consider the heat exchanger from aluminum to Stainless Steel.

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On 11/29/2015, 11:51:27, eliasafr said:

we are using turbine refrigeration unit P/N:203720-1 for C-130 B ac.The consumption rate is very high. How can we recover the problem......? We have the ac ser no:  3553, 3676, 3589 & 3647. Can we use some other models of turbine refrigeration unit in our aircraft....?

This is correct and current.  In addition, see more detailed brochures attached.    We keep these turbines and heat exchangers in stock most of the time, and yes, they replace 203720 and 203430 series turbines, regardless of Aircraft Serial number.  

Also attached E2H ECS upgrade information, which is a more extensive retrofit up to a C-130H ECS System.  More reliable, 230% more air flow, better pressurization, but also more expensive. 

C130_Pre_1974_ECS_Upgrade_Fact_Sheet.pdf

C130 E2H ECS Upgrade fact sheet.pdf

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