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Old October 3rd 05, 01:21 AM
rotor&wing rotor&wing is offline
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First recorded activity by AviationBanter: Sep 2005
Location: florida
Posts: 38
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the military version of the allison 250 is the t63. the t63a700 is equal to the c18 (317 shp). all the parts are the same as the c18, and these engines can be had for about $25,000. i have one with 18 hours since overhaul that i have advertised for $26,000.

the t63a700 has a military dataplate, hence is not applicable to certified aircraft. the oh-6a helicopter certified in the normal category has an stc to use the t63.

the t63a720 is equal to the c20 allison (420shp). these engines generally go for more money ($50-60,000) since the components interchange with the c20.