wrote in message
oups.com...

Hmm, shifts the CG forward a tad reducing the counterweight
needed up front, and thereby the total weight by a bit more too,
right? Or don't the 5js need a forward counterweight.

That's a very good observation. Yes, it does. On most BD-5J's you are
required to have some type of ballast on the nose, usually lead bars. On
Bishop's jets, the ones being used for surrogate cruise missile work for the
military, we resolved this by replacing the huge NICAD batteries with gel
cells and moving them forward behind the panel. We also moved just about
everything else that could fit in there. The specialists who did the
installation said they had never before managed to fit 2 pounds of **** in a
1 pound box. I can send you pictures of that installation if you like, it's
amazing. I designed the panel layout but the real work was done by the
installers.

OK, what's 'N1'?

N1 is the turbine rotation speed, expressed in percentage. This is a
plain-jane turbojet.

And what happens next after 'light off'?

Watch your EGT, don't let it go too high, slowly bring the RPM up to a
stabilized idle around 51-55%. Make sure everything's in the green. It's
really a very simple setup.

Juan