Thanks for trying, erryl. An email to Fidelity brought this response:
The Smart Payment Program takes into account your initial deposit, inflation rates, and the target year of the fund you choose when determining a monthly payment. Unfortunately, I am unable to provide any specific calculation examples.

I'm trying to compare Fidelity's Income Replacement features with Vanguard's Managed Payout Funds. If the Fidelity funds have been discussed, perhaps someone can provide a link.

 Thanks,

Paul