Thanks Ian. Years ago I remember someone. ( or reading) that the BT was designed to comply with the New ( at that time) noise limits the Europeans brought in. But not sure. The tapered blades can be blimmin noisy above 3200RPM.
Sent from my iPhone > On 10/06/2021, at 7:04 PM, Ian Mc Phee <mrsoar...@gmail.com> wrote: > > I think I heard once BT may be slightly better climb but at T may be slightly > better cruise. I can't pick it. > > Ian McPhee > 0428847642 > Box 657 Byron Bay NSW 2481 > >> On Thu, 10 Jun. 2021, 15:53 Ian Williams, <i...@agcon.co.nz> wrote: >> Hi All, >> >> >> >> An unanswered question I have relates to Hoffmann props as installed on the >> H-36. >> >> Is there any useful information out there regarding the performance >> differences between the standard tapered blades and the. BT blades >> >> My personal experience would tend to indicate that the tapered bladed >> actually perform a little better but at the high RPM end tend to be quite >> noisy… ie noiser than the BT blades at the same RPM. >> >> I would be very interested in your comments. >> >> >> >> Best regards >> >> Ian Williams >> >> >> >>
