hevansrv7a
Well Known Member
This is only for the RV12 guys with the ground adjustable Sensenich props.
It would be useful to the community as a whole and also to some research that I am doing on which Jack Norris is acting as a reluctant reviewer.
It would be very good to know this:
1. Airplane ID and whether or not it is "stock" LSA or ELSA, especially with respect to any drag reduction employed.
2. Geometric pitch at 75% of radius measured to 1/10 degree if possible.
3. TAS at several altitudes at which density altitude is known and the prop or engine RPM for that TAS. If we could have 8000 as one of those altitudes and some lower ones, too, that would be good.
4. Your highest possible TAS at 8000 density altitude, if possible, included in number 3 above.
I know this is a PITA, but only well-calibrated observations are useful. That applies to OAT, altimeter and GPS verified TAS (upwind/downwind average should be good enough if within 2 degrees of heading agreement between GPS and compass).
Want to help?
I will publish the results with or without your airplane ID at your say-so.
Thanks!
It would be useful to the community as a whole and also to some research that I am doing on which Jack Norris is acting as a reluctant reviewer.
It would be very good to know this:
1. Airplane ID and whether or not it is "stock" LSA or ELSA, especially with respect to any drag reduction employed.
2. Geometric pitch at 75% of radius measured to 1/10 degree if possible.
3. TAS at several altitudes at which density altitude is known and the prop or engine RPM for that TAS. If we could have 8000 as one of those altitudes and some lower ones, too, that would be good.
4. Your highest possible TAS at 8000 density altitude, if possible, included in number 3 above.
I know this is a PITA, but only well-calibrated observations are useful. That applies to OAT, altimeter and GPS verified TAS (upwind/downwind average should be good enough if within 2 degrees of heading agreement between GPS and compass).
Want to help?
I will publish the results with or without your airplane ID at your say-so.
Thanks!
