Comments on: Rumors Fly About JSF Second Engine http://www.dodbuzz.com/2009/11/02/just-how-bad-are-f136-problems/ Online Defense and Acquisition Journal Thu, 11 Mar 2010 13:03:48 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Arthurn Gainhttp://www.dodbuzz.com/2009/11/02/just-how-bad-are-f136-problems/comment-page-1/#comment-17684 Arthurn Gain Sun, 13 Dec 2009 04:42:38 +0000 http://www.dodbuzz.com/?p=11018#comment-17684 as you would know only to well,the moment you start to wring the engines neck you will obviously start having serious issues with the "lifed items" carried over from previous design parameters of Raptor eng, certain components of this eng are not able to handle higher workload stresses. These issues must be resolved before delivery. Rgds Arth. as you would know only to well,the moment you start to wring the engines neck you will obviously start having serious issues with the “lifed items” carried over from previous design parameters of Raptor eng, certain components of this eng are not able to handle higher workload stresses. These issues must be resolved before delivery. Rgds Arth.

]]> By: Turbineguyhttp://www.dodbuzz.com/2009/11/02/just-how-bad-are-f136-problems/comment-page-1/#comment-16062 Turbineguy Fri, 06 Nov 2009 18:07:51 +0000 http://www.dodbuzz.com/?p=11018#comment-16062 Jeff, are you suggesting the F135 design doesn't work? It's based on the F119 powering the F-22, which seems to be working quite well (at least in that application). Jeff, are you suggesting the F135 design doesn’t work? It’s based on the F119 powering the F-22, which seems to be working quite well (at least in that application).

]]> By: Megatronhttp://www.dodbuzz.com/2009/11/02/just-how-bad-are-f136-problems/comment-page-1/#comment-15956 Megatron Thu, 05 Nov 2009 00:15:09 +0000 http://www.dodbuzz.com/?p=11018#comment-15956 The f136 has multi-national content and therefore multi-national support. I suspect this is key. The f136 has multi-national content and therefore multi-national support. I suspect this is key.

]]> By: Jeffhttp://www.dodbuzz.com/2009/11/02/just-how-bad-are-f136-problems/comment-page-1/#comment-15894 Jeff Mon, 02 Nov 2009 21:06:45 +0000 http://www.dodbuzz.com/?p=11018#comment-15894 I'm always for doing things that will save money, thats the intended goal of having two viable engine designs. How much cheaper will the F136 have to be and how much would Pratt and Whittney really have to come down on the price of the F135 as a result of that competition to make the pay off? Or what type of improvement in performance is worth the amount of money thats been dumped into a failing design. Some supporters point to the F136's possible superior temperature margins, but the question is if Pratt and Whittney had been given the additional dollars the F136 has recieved, maybe they could have made improvements to match it? At least they'd be starting from a design that works. I’m always for doing things that will save money, thats the intended goal of having two viable engine designs. How much cheaper will the F136 have to be and how much would Pratt and Whittney really have to come down on the price of the F135 as a result of that competition to make the pay off? Or what type of improvement in performance is worth the amount of money thats been dumped into a failing design.

Some supporters point to the F136’s possible superior temperature margins, but the question is if Pratt and Whittney had been given the additional dollars the F136 has recieved, maybe they could have made improvements to match it? At least they’d be starting from a design that works.

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