SP140 first flight experience - Light weight pilot

Just finished my first flight since 2019!
I’m a light pilot (150lbs) so I had to add three upgrades to get my CG better (still not perfect)

  1. 15mm shorter spacers on the motor
  2. longer shackles
  3. new goose neck bar to push the hang point back.
  • bi-blade:
  • Getting about 3.8kw on a 24m roadster 3 cruise speed.
    used about 20% battery on a 14 minute flight. going from 100-600ft a few times.
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Thanks for sharing. Which gooseneck bars did you add?

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Paul at openPPG bent up some arms for me.

I’m about the same weight. This is how my CG looks like in level flight. Would you say this is unacceptable?

I do not own a SP140…but hope to. To me the angle does seem a bit much. Assuming the horizon is flat there is a relative 27 degree angle. Now note that everyone’s angle is “unique”, and while under power the angle may be exaggerated, but a decent resource (How To Do Paramotor Hang Test- Setting Up Hang Angle And Hang Points - Paramotor Guide) shows about an 8 degree angle during a hang test with no power. The PPG Bible states the range should be 5-15 angle. I would recommend performing a hang test (e.g. in your garage), taking pictures and trying to aim for an angle closer to 8…but again will require some trial and error. Just my 2 cents and look forward to hearing from experienced/knowledgeable fliers…because I would also like to know.

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Mind sharing a photo of modifications?
I’m trying to understand how longer shackles help?

that angle could be dangerous under full throttle
I would recommend the following:
A) Tighten up the top straps of the harness as much as possible. Pull the seat back adjustment as far forward as possible (not as comfortable but still good).
B) Move the goose neck rings as far back as possible without going down the bar
C) shorter motor spacers
D) longer shackles (lowers the seat about an inch for moving CG forward a bit)
I also front mounted my reserve for more weight up front.

spacers: Spacers and Positive Terminal Cover SP140

these are the shackles: I got: Self-locking tack shackle - Dia 6 mm | Wichard Marine
these are expensive! not as wide as the originals but they work. they are super secure and feel like they don’t even need a security wire (still put one on)

hard to see all the changes, but this photo you can see the shackle:

Thanks for the tips, tatawaki! Will try it all.
Why can’t I move the gooseneck rings really far back, like half-way down the bar? What is the danger?

it transfer pressure to the ring instead of the bar. potential for it to slip off.