Bomb bay aft? Originally when Boeing did the dog and pony show with the 737 last year, the bomb bay was forward (proposed), in the forward luggage compartment. But the 737 IGW (increased gross weight) variant that they are using for the MMA, uses one of of the luggage areas as another fuel tank, like zab mentioned. Probably easier on CG to have the extra fuel tank forward while you burn it off. But I don't know the exact data on that. Also might be some issues on airflow, weapon seperation, and the fact that they are going to use articulated bomb bay doors to stay out of the slipstream, unlike the clamshell doors of the P3 that open into, and stay in the slipstream (whole airplane vibrating around you, good stuff)...
Tango, let me confirm for the record that zab is a not only a winged naval aviator, but a P3 Patrol Plane Commander (PPC), with countless hours and experience flying this aircraft. In addition, I am also a P3 PPC, and if you don't believe me, and I run this site, then you might as well just hang your hat and find another site, since this one is "obviously full of imposters". You need to understand that the core group of aviators on this forum either know each other personally in training, through other naval aviators, or the veracity of their posts. We are here to assist those that are interested in following our footsteps, and have similar goals. Answering questions, and giving what advice we have is how we give back, and something we are interested in doing. I know for a fact that I and others have directly or indirectly assisted future naval aviators in making their dreams a reality. Now, take a look at this thread, ADVANCED PROPS, under NAVAL AVIATION AND TRAINING. This is a forum for those in this pipeline to discuss issues or questions. You asked the original question, and zab answered it. You ignored it, and added a slew of other posts, and once again zab answered it. I take it as a plane captain, you have heard the term SME, you know Subject Matter Expert? Well, you have encountered a couple of them in this thread, and you continue to ignore ppl that answer your questions. Flip side, overhearing a conversation about engine anti-icing procedures, engine stresses, doesn't make you an expert on this topic. Would you question an F18 pilot on his emergency or normal operating procedures? I don't think so. Would you provide answers if you were the appropriate maintainer to his/her technical questions on the status of his aircraft, with respect to the ADB, yes. See the difference?
To once again answer the orginal question. P3 does not equal C130, broad scope, different mission, we don't carry troops and supplies to unpaved fields. FOD as you know is ALWAYS an issue, how many 0700 FOD walkdowns have we all done? But it is not an issue for this aircraft, in the role it is going to be used. More pertinent questions are, what about engine failure on station at low altitude? Well, as already provided, the turbofans have a ridiculously low engine failure rate, especially in comparison to the P3's. Also, the 737 has a HIGHER climbout rate (fpm) with ONE engine, than the P3 with ALL FOUR...
Other pertinent questions, such as the one in this thread, fuel economy. Turbofan is great for up high, but can't compete with prop down low (under 2000 feet). A P3 taking off and going directly onstation is going to have a longer onstation time, than say a 737. But, if you throw a 1000 nm travel to onstation, then you have a different answer. The 737 gets there earlier, and can spend more time on station. This is also ignoring so many other factors that confront a PPC, and crew. Weather, terrain, national boundaries, tactical situation, crew fatigue, that affect how long we can stay on station.
For one, I think the 737 is a good thing. Anything to increase reliability of the airframe, and the fact that there is an open market for parts. What is killing us now is that we and a few other countries are operating a small fleet of P3s with no new parts out there. Whereas there are what, close to 3000 737s out there in the world or on order? Any part can be found, anywhere, great supply system that the Navy doesn't have to pay for. You should know that problem intimately as an F18 plane captain, since hornets face them same problems that we do.
Oh, by the way, if you didn't know also, P3 C "Orion" = Lockheed Electra (civilian airliner....albeit with 9 feet chopped off it forward the wing root). Isn't the first time that the Navy or military as a whole has used a civilian proven aircraft.
--- P3 Patrol Plane Commander