Hi Guy’s,
Because of the heavy bala that availed right now, I decided it was time to upgrade the P-Force to make it a little lighter to compensate for the heavier Balsa wood.  Over all, it’s the same size but should built up to the mid 30’s

Things I changed,
Fuselage:  the fuse is now laminated 3/16” Balsa with lighting holes with cross bracing, then sheeted with 1/16 Balsa.  The Balsa sheeting is run at a 45 degree to the center line, the sheeting on the other side is installed at 45 degrees in the opposite direction.  This makes the completed fuse about 2 ounces lighter.

Stab & Elevators:  the stab & elevators are noe cut from 3/16 Balsa with a some lighting holes cut into them, but still very stiff when covered with film and silkspan & dope. 

Wing:  the only change to the wing are a few lighting holes and relocating the suspended bell-crank.  This is much simple to build and install C/F pushrod in a almost straight line.

Electric conversion parts supplied including .2 mm laser cut firewall and battery box.  Also changing the instruction book with photo illustrated instruction steps.  Note:  You have the option of building the P-Force with either glow or electric powered.

There is still much work to do but I hoping for a release date end of March and I’ll try to have a build log on Stunt Hanger so you call all follow along.

Mike Pratt

Nice work Mike!  All the best.

Thanks Crist,
I still thank there is plenty of light wood out there but we have to go back to the Good Old Day’s and search and pick what we can find and maybe save it. 

Later,
Mikey

Hi Mike,
I am having a good time with my Electric P-Force. It flys really nice. I am building a second P- Force now. When can you provide the updated plans and a kit?

Thanks,
Allen “Dale” Jones

Hi Dale,
The Primary Force 2.0 is a ways off yet but getting closer.  The main plan is almost finisher so I’m working on the laser cut files.  The fuse is laminated 3/16” Balsa, lighting holes braced with 3/32 X 3/8” Balsa, then Sheet with 1/16” Balsa at 45 degrees to the center line with the sheeting on the opposite side applied in the opposite direction.  This make an extremely stiff and light weight fuselage. 

The stab is now 3/16” Balsa with lighting hole.  The model will have both an electric and glow motor you can build, most will make it electric I think so it will include an electric front motor mount that is laser cut from plywood.   The Wing hasn’t changed but just a few more lighting holes.  All of the changes so far have saved 2-1/2 ounces over the previous version and I glassed the fuselage with .75 ounce glass cloth & epoxy.  With iron-on covering film and R/C car paint it still builds in the mid to low 30 ounce range with four cell 2200 mHa pack, Tallon ESC, K&R timer and 2820-12 970 KV Cobra or Bad Ass electric motors.

The next hill to climb is the photo illustrated instruction book.  Test flying will begin as soon as the weather allows just to make sure it performs as expected (I’m sure it will be great).

Mikey