But how do it KNOW the proper end speed..regardless of weight? Do it also know WOD, asymmetric load and phase of the moon?
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Another new set of Hookers inbound
- Thread starter Alpha_Echo_606
- Start date
But that's the thing. You don't want the same accel regardless of weight. You want the appropriate end speed for your GW. Unless the EMALS can sense your GW during the stroke, you're still going to have to input the desired end speed into the system somehow.
Agreed....I don't need the same accel to get airborne with a CQ load as I would with things hanging off the wings (or even at a partial/internals only gw). Then throw in different cat track lengths.....don't need the same acceleration for a given load on cat 1 as I do for cat 4. Just sayin
... and going back into my helo hole
Go hover over there in your corner, Ed.
EMALS will provide a constant tow force on the aircraft and vary acceleration to reach a desired end speed...presumably set by the operator. This allows the system to impart less stress on the airframe than the current steam system. Initial acceleration is slower, but the whole system is capable of much higher energies.
That question still remains unanswered. From what I've read above so far, it appears that the gross weight will have to continue to be cranked in to result in the desired end speed for every type A/C & configuration.
Another great plus for EMALS, is that much more of the ships fresh water distilling/storage will be available for crew comfort (drinking/cooking/showers/laundry & A/C fresh water douche). Steam cats had #1 pri for fresh water and used massive amounts during heavy FltOps. Should greatly reduce the need for the dreaded "water hours", & saltwater showers,
Ugh!BzB
Sounds a lot like the advantage of the change from hydraulic to steam catapults back in the day. Technology!
You betcha, in my JO days had my first jet carqual session on a hydraulic-cat 27C (Kearsarge), the lightweight carqual launches were real 'bonecrushers'... I can't imagine what a max gross shot would have felt like, nor the stress on the cat hooks & bridle with a hydro cat shot. Subsequently, my first carqual launch on a steam cat (Ranger) seemed so slow, I thought it was a soft/cold shot, yet it leapt into the air at he end of the stroke!
*"BusyBee" A-4Cs preparing for CQ on Q-Barge (CV-33), 1964
BzB
The reason asymmetric shots are so hard is because the end speed charts are computed assuming an engine failure of the critical engine on the cat stroke. The jet has to have enough speed to maintain Vmca and fly away. Just as an example, a 67,000 pound fully laden tanker shoots at a CSV setting of around 210. A 58K asym 3 Rhino will shoot in the 270ish range. All of this is subject to my recall of penguins that have long since abandoned the iceberg.
Edit - for those of you clown jet studs who are interested, it shoots with a CSV around 90-100. 100 is also the no load setting just for reference.
Edit - for those of you clown jet studs who are interested, it shoots with a CSV around 90-100. 100 is also the no load setting just for reference.
MasterBates
Well-Known Member
What's the Hummer setting? It's lighter than the SupaBug, and needs a lower end speed, but has less "self help" down the track.
About 110-120 iirc. With enough wind, it would be around 100. We also had to worry about breaking tow links with the hummer, so you had to be careful.
