Sorry I could not continue the conversation yesterday, no offense or lack of interest on my part. Phone calls at work vs. quiet e-mail correspondence, household chores, and other impediments were in play.
From a proposal (pronounced "sales") standpoint there are still a couple of things that I am guessing might have made better use of the 800 word space you were given for an abstract. Not because you don't know what your invention does, but because the reader doesn't.
The full proposal becomes irrelevant if the abstract does not grab the attention, then win the support of the reader. "Less is more", SOMETIMES, but that principle applies to confusion and questions as much as it does to information
If you were responsible for the stewardship and expenditure of any significant amount of money, would you want to understand more about what you were buying or less?
If any significant number, out of a group of fairly educated airplane people (HBA), doesn't immediately get the concept and why it is an improvement, then IMHO you have a problem to address. So perhaps you might think of polling the group to see whether other reasonably experienced people feel that the abstract is missing something. I could easily be wrong about this,a nd will admit it with sincerity if that is the case.