Q: How do I create an install disk from recovery partition to install on a blank hd

Use Lion Recovery Disk Assistant 1.0 with Apple MacBook EFI Firmware Update 2.1, if needed. You can create a Recovery HD image on any USB drive or flash drive with 2 GBs of free space available.

You have two possibilities:

1. Open App Store > Purchases and download Mountain Lion. When the download has finished, open Lion Diskmaker to make a bootable Mountain Lion USB drive > http://blog.gete.net/lion-diskmaker-us/

2. Download Recovery Disk Assistant from the Support website to create a Recovery HD on your USB drive.

The difference between them is that the first contains OS X Mountain Lion, so you won't have to download Mountain Lion from the App Store when you are going to install Mountain Lion

If you have a Mid 2010 MacBook Pro or newer, you have Internet Recovery, so you can reinstall OS X pressing Command, Option and R keys while your Mac is starting, without needing to have OS X on the hard disk

mende1 is referring to OS X (Lion/Mountain Lion)- About OS X Recovery. See also, Computers that can be upgraded to use OS X Internet Recovery to determine if your particular model is able to use Internet Recovery.