[Scott]

Scott on July 28, 2023 at 9:31 pm #22097

The public comment period is open and will run until mid-October. Go to this link to read the NPRM, review other commenters’ opinions, and to submit your own comments.
​​​​https://www.federalregister.gov/documents/2023/07/24/2023-14425/modernization-of-special-airworthiness-certification

[Scott]

Scott on July 28, 2023 at 3:53 pm #22096

When trying to determine whether your Piper fits into the Vs1=<54 KCAS classification, remember to calculate CALIBRATED airspeed. Many Piper aircraft have substantial installation error at the lower end of the airspeed spectrum.

For example, a PA-28-181 Archer III stalls at 45 KIAS Vs0 (full flaps) and 50 KIAS Vs1 (clean). However, when you consult the IAS-CAS table, you'll find that this aircraft actually stalls at 52 KCAS Vs0 and 58 KCAS Vs1. And thus, unfortunately, it does not meet the 54 KCAS Vs1 requirement.

[Scott]

Scott on July 28, 2023 at 3:48 pm #22095

A summary of the proposed regulations from EAA: