Realistic Invention Rule
Just to be sure I understand the Invention rules because It's look nearly impossible to use it in realistic campaign.
Being a above-average engineering building a motor with Mechanics/14
Not being in an "adventure context" (no zombies run after him) he can have a +4 for his skill. He can build Complexe device with the effective skill skill at 18.
The Complexe device have a modifier of -14 (!!)
The device already exist but he didn't have a model with him, +2
The Engineerign give a good description, GM giving him +2
The engineering must make a roll under 8 (mechanics 14 +4 -14 +2 +2) for the concept roll.
He have two assistants (Mechanics/12) for a effective Skill level of Mechanics 16
It's a complexe device, -14
The device already exist, +2
They have good equipments (a shop or a BIG laboratory) for building the device, giving +2)
Good description +2
The Assistants possess Skill level at 8 (12 +4 -14 +2 +2 +2). No help here, they don't have 20+ (how could it be possible????)
The Engineering must make a roll under 11 again for the prototype.
Am I right?
I use only the Basic here with Skill definition in Basic p. 112 "Expert at 14, Ordinary Folk at 9-11", having good assistants at level 12. It's look hard, nearly impossible, in a realistic game where Basic skill at 17 is REALLY uncommon.
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