The maneuvering Speed (Va) can be computed as the (SQRT(G limit)) times
Vs so that the new Va is reduced to 132 Kts.
**You have applied the 3.2G limit in this calculation. While that may
seem appropriate, we know that the tested L-IV wing load limit is
significantly higher than that. Therefore, the application of the 3.2G limit
may not be necessary. If we take the 4.4G limit, knowing that the airframe is
strong enough to support it, then Va should increase to 157kts, not decrease
to 132 kts.
** Any of us who recall flying Wichita spam cans will recall the Va
placard, which always has Va lower at light weights.
PS My diet has succeeded in reducing my aircraft landing weight by two
bowling balls, one more to go. Climb performance is better, too.
**Congratulations. That is a more difficult achievement than building a
IV-P door.
Ted Noel