The video was well done and very understandable even to me as a non-techie.

Now we need the business side explained similarly well and reliable. 
SPX is ready for mass production and will start producing 1000s - 100k's of engines. 
If you can't let us know, WHO you are producing them for, that's fine if covered under NDA (if so). BUT, TM can certainly let us know the following:

1) will they be sold, or made for the shelf?

2) if sold (as we have a PO), what will be the revenue per 100k engines

3) How many PO's do we have and for how many engines?

4) if the PO's are produced, let's say 500k engines

  a) how long will it take to produce those

  b) what will SPX do, if those initial orders are produced and no new PO's received in the meantime

5) how much money will need to be spend to initiate production and completion of PO's before revenue can be booked

6) can we find a white knight investor (ala Marc Lustig / IBK) that is willing to "lent" the money needed for initial production based on PO's in place and revenue targets

7) when will this current financial weak position (that certainly suppresses the share price) be resolved, and how. The previous initiatives (eg. exercising of warrants) didn't really work and hopefully won't have been the last straws

Looking positive into the technical future and therefore also the stock. However, change is required.