I know the system defense variants have the extra drive. But I don't know (no text-ev either way) that they have a longer range transceiver. And they were pretty much conceived in a package with Mycroft to stretch their FTL fire control widely across the inner system)Weird Harold wrote:Jonathan_S wrote:Ok, which means they have FTL control for less than 8 lightminutes. (Honor's 'bluff' shot against Tourville during the BoM) [the two numbers I have handy for Apollo are: Lovat being in-range at 3+ LM and BoM being out of range at 8 LM; so the direct range should be somewhere between them]
So even if Fileretta was slightly inside the hyperlimit at the closest point of approach to Sphinx he'd still be well outside direct Apollo range of the orbital forts.
You're forgetting that the System Defense variant is a four-drive missile -- which should have a powered range 133% of a ship-borne three-drive Apollo.
Also, System defense missiles should be "bigger" than ship-borne missiles, so range should be 150-200% of a three drive Apollo. The FTL transceiver would have to have better range to manage powered range of the System Defense Variant, so the Hyper Limit (from Sphinx at the time of Filareta's Folly) would probably be in range or nearly in range.
And to get, what's probably more than a doubling the effective range, (to get to the 10 LM reach from Sphinx to the hyper limit) seems like it'd take a massively larger transmitter. (Since even FTL ripples should follow some kind of inverse power law)
But Oyster Bay may well have interrupted the deployment of those around the Manitoran system; leaving the Forts a little short-ranged for FTL control. At least for system defense; they'd still have plenty of range for planet or junction defense.