Hello,
I was wondering if anyone would be interested paying to run a flutter analysis for the RV-9. As it stands Van's has only ran one flutter analysis on any of his airplanes, the RV-8 and that was done using the largely discredited Engineering Report 45. This is intrinsically related to the Vne which currently stands for the RV9 series at 210 mph.
I am wondering if there is interest in running a subsonic flutter analysis on the wing and the tail surfaces to verify the Vd and Vne. The total cost looks to be $12,000. The proposed engineer to run the analysis is Martain Hollmann MS, "Dr Flutter", who has done flutter analysis on:
* Stallion
* Adventurer (post crash)
* Lancair IV
* Lancair 320
* Lancair 360 with big tail and small tail
* Lancair 360 with big wing and small wing
* Lancair ES
* Star*Kraft 700
* Sadler Vampire (single place all metal)
* Cygnet glider
* Killdeer (four place all metal)
* Cessna C337 with extended wing tips, STC?d (six places all metal)
* Rigel AA300
* Barr Six
* Thunder Mustang
* Wheeler Express, (post crash)
* BD-10 Jet, (post crash)
* Mach Buster
* RotorJet
* Geoduck
* Rans S-7 Courier, FAA Certified
His website is:
http://www.aircraftdesigns.com
Was wondering is this valuable enough for people to chip in $100 or $200 dollars for the report. Alternatively I will probably take the
http://www.aircraftdesigns.com/Classes/HANDS-ON-FLUTTER-ANALYSIS/aircraft.tpl.html
This december, but the results wouldn't be an aero engineer's certified report, available for the FAA review, but some guy giving some numbers.
Bob
I was wondering if anyone would be interested paying to run a flutter analysis for the RV-9. As it stands Van's has only ran one flutter analysis on any of his airplanes, the RV-8 and that was done using the largely discredited Engineering Report 45. This is intrinsically related to the Vne which currently stands for the RV9 series at 210 mph.
I am wondering if there is interest in running a subsonic flutter analysis on the wing and the tail surfaces to verify the Vd and Vne. The total cost looks to be $12,000. The proposed engineer to run the analysis is Martain Hollmann MS, "Dr Flutter", who has done flutter analysis on:
* Stallion
* Adventurer (post crash)
* Lancair IV
* Lancair 320
* Lancair 360 with big tail and small tail
* Lancair 360 with big wing and small wing
* Lancair ES
* Star*Kraft 700
* Sadler Vampire (single place all metal)
* Cygnet glider
* Killdeer (four place all metal)
* Cessna C337 with extended wing tips, STC?d (six places all metal)
* Rigel AA300
* Barr Six
* Thunder Mustang
* Wheeler Express, (post crash)
* BD-10 Jet, (post crash)
* Mach Buster
* RotorJet
* Geoduck
* Rans S-7 Courier, FAA Certified
His website is:
http://www.aircraftdesigns.com
Was wondering is this valuable enough for people to chip in $100 or $200 dollars for the report. Alternatively I will probably take the
http://www.aircraftdesigns.com/Classes/HANDS-ON-FLUTTER-ANALYSIS/aircraft.tpl.html
This december, but the results wouldn't be an aero engineer's certified report, available for the FAA review, but some guy giving some numbers.
Bob