|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

08-07-2019, 07:35 AM
|
 |
|
|
Join Date: Nov 2006
Location: West Chester, PA
Posts: 689
|
|
Whirlwind 300-72 on RV-14A
I understand that there may be a few -14As flying with the new 300-72 prop. WW has now approved this prop up to 220HP which makes it an option.
RV-14 owners flying this prop, Please share you experience . . .
Besides the challenges of cowl removal (which i had on my 3 bladed -9A), how did you deal with the W&B. This prop is 36lbs - the Hartzells are 42lbs (composite) & 54lbs (metal). That is a huge difference in weight on the nose. Did you add weight firewall forward? Are you limited in baggage capacity? Kind of defeats the one of the advantages of the -14.
Thanks
__________________
Mark
RV-9A; Sold 
RV-14A; Building
2020 =VAF= donor
|

08-11-2019, 08:04 PM
|
|
|
|
Join Date: Dec 2015
Location: Spring Hill, FL
Posts: 101
|
|
W&B
I ordered the 300-72 after many hours of W&B calculations. I have 2 Earth X?s on the firewall and a second alternator and could not find an issue. Sure for acro no baggage is allowed but would you be flying acro with baggage? Utility W&B not an issue.
__________________
RV-14A QB building, Lycoming 390 Thunderbolt arrived July 2019, Garmin avionics, Vertical Power, EFII-32 Ignition and Fuel, Whirlwind 300-72, Parts became a real airplane 8/15/2020.
|

08-13-2019, 11:25 AM
|
 |
|
|
Join Date: Sep 2014
Location: Alameda, CA
Posts: 191
|
|
Quote:
Originally Posted by dmattmul
I ordered the 300-72 after many hours of W&B calculations. I have 2 Earth X?s on the firewall and a second alternator and could not find an issue. Sure for acro no baggage is allowed but would you be flying acro with baggage? Utility W&B not an issue.
|
I sent you a PM about your battery setup.
__________________
-------------------
Dues paid (2020)
RV-14 #140394
Empennage - done(ish)
Wings - done(ish)
Fuselage - done(ish)
Finishing Kit - Somewhere in there
YouTube Build Channel
|

08-13-2019, 01:06 PM
|
|
|
|
Join Date: Apr 2015
Location: Ponte Vedra, FL
Posts: 1,474
|
|
Check out the RV-14/14A weight and balance thread if you haven't already ( http://www.vansairforce.com/communit...d.php?t=133335).
I had a Bonanza with the 3 blade version of the standard metal Hartzell, and was very happy with that, so it was easy for me to go with that option - and I'm happy with it so far now that I'm flying.
|

08-13-2019, 01:17 PM
|
 |
|
|
Join Date: May 2012
Location: Conroe, TX
Posts: 37
|
|
Mark,
I see no adverse affects from a lighter prop on your RV-14. Calulating 18 lbs. less weight approximately 63 inches forward of the empty center of gravity moves the empty CG aft about .25 inches. This would actually be advantageous. at least for my airplane, because it is possible to exit the forward CG envelope with a very light pilot, and not possible to exit the aft CG envelope at GW with 100 lbs. baggage by a large margin.
However, I personally prefer a two bladed prop for performance reasons.
__________________
Built 2012 RV-8 81764 (sold)
Flying 2019 RV-14A 140229
Donation 12/18
|

01-09-2020, 06:54 AM
|
|
|
|
Join Date: May 2019
Location: Portland OR
Posts: 7
|
|
Tear Down Cost?
Whirlwind shows the Teardown time on the 300 as 650 hours. Any idea what that costs and what is involved? That seems really low compared to the Hartzell options.
|

01-11-2020, 05:36 AM
|
|
|
|
Join Date: Dec 2015
Location: Spring Hill, FL
Posts: 101
|
|
Fit and Finish
Although not flying (And not yet even installed) the fit and finish of the prop looks spectacular. Hopefully get it mounted in the next few weeks.

__________________
RV-14A QB building, Lycoming 390 Thunderbolt arrived July 2019, Garmin avionics, Vertical Power, EFII-32 Ignition and Fuel, Whirlwind 300-72, Parts became a real airplane 8/15/2020.
Last edited by dmattmul : 01-11-2020 at 05:45 AM.
|

01-11-2020, 05:42 AM
|
|
|
|
Join Date: Dec 2015
Location: Spring Hill, FL
Posts: 101
|
|
Picture attached
__________________
RV-14A QB building, Lycoming 390 Thunderbolt arrived July 2019, Garmin avionics, Vertical Power, EFII-32 Ignition and Fuel, Whirlwind 300-72, Parts became a real airplane 8/15/2020.
Last edited by dmattmul : 01-11-2020 at 07:11 AM.
|

01-11-2020, 05:46 AM
|
|
|
|
Join Date: Oct 2014
Location: Sebastian Fl X26
Posts: 81
|
|
I had an RV200 rebuilt a little while ago and spent about 2100 including shipping.
__________________
Dennis Callaghan (X26)
- RV14 sn:140193 - first flight 12/19/2019
- 2000+ hours on my RV6! Sold (so sad...)
- donation 12/30/2019 * 2
Last edited by RV6-KPTW : 01-11-2020 at 10:45 AM.
|

01-11-2020, 07:00 AM
|
 |
|
|
Join Date: Oct 2011
Location: Kennesaw, Ga
Posts: 825
|
|
Quote:
Originally Posted by RV6-KPTW
I had an RV200 rebuilt a little while ago and spent about 2100 not including shipping.
|
Dennis, how many hours were on the prop when you had it rebuilt? I've been told by several RV200 owners that they have only inspected the prop and it has worked flawlessly to past 1000 hours and many more.
__________________
Amir
----------
RV-7
RV-10 - Sold
Supporting VAF since the first visit
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 02:36 AM.
|