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12-03-2019, 07:39 AM
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Join Date: Feb 2008
Location: Pecan Plantation Granbury TX
Posts: 20
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Great speeds in an RV
I was encouraged to post this on Van's Air Force's website, so here goes. After all the terrible weather last week, we needed a window of decent weather to return to Texas from SoCal. We had no idea of just how great the flight would be. Kind of wondering if anyone else has seen these kind of ground sppeds in their RV's. Flying with half throttle, 2,230rpm, climbing at 200fpm, at 15,480', and LOP, we saw . IAS = 154mph, TAS = 198mph, Ground Speed (GPS) = 266kts, or 306mph, wind speed = 110mph.
The second picture taken 72nm earlier shows 301mph, climbing 300fpm, and 8.7gph, which is almost 35mpg.
https://www.facebook.com/photo.php?fbid=3557500467608318&set=pcb.3557530554 271976&type=3&__tn__=HH-R&eid=ARChiHpFgvOyTT2DTMlmONLmpDoeN3HwBZa_ebCJrFHy 8PeMTFxBwMNSwxrWJ-6q6Z21bv0e_uVSabuQ[/IMG]
https://www.facebook.com/photo.php?fbid=3557507254274306&set=pcb.3557530554 271976&type=3&__tn__=HH-R&eid=ARAW_P0xD4pKnYu3G6N3XZBwJrN4ed_Fm7bXWLmLn0G2 U0x2nWjRUJHcOfSvgw4-6dTBN8xC4rw7aP9M[/IMG]
Don McDonald 0TX1
RV10 40636 1,100 hours and loving it.
Last edited by partner14 : 12-04-2019 at 04:02 PM.
Reason: Added Name and other
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12-03-2019, 08:19 AM
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Join Date: Jul 2007
Location: Cypress, TX
Posts: 526
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I guess we need a new category, the "300 mph club".
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12-03-2019, 08:58 AM
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Join Date: Jul 2018
Location: CA
Posts: 227
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?IAS = 154mph, TAS = 198mph, Ground Speed (GPS) =306mph?
I love it. Were you nervous in the event you hit unexpected turbulence at that speed?
Cheers
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20 dues paid member since 2018
RV6A
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12-03-2019, 09:04 AM
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Join Date: Jan 2019
Location: Anacortes Wa
Posts: 81
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Winds were huge last week... as long as you were eastbound!
IAS is all that matters
__________________
RV-7 Tipper
Bill (Wild) VA-165 '90-'93
Anacortes, Wa
Start 2/19 Emp complete 4/19 Wings complete 11/19 Fuse complete 6/20 Finish kit Complete 8/20 Electric/Avionics complete 9/20 Waiting on a motor...
Exempt x 3 - Donated 2020
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12-03-2019, 09:05 AM
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Join Date: Jan 2019
Location: Anacortes Wa
Posts: 81
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"IAS is all that matters" when it comes to turbulence penetration speed is what I should say.
__________________
RV-7 Tipper
Bill (Wild) VA-165 '90-'93
Anacortes, Wa
Start 2/19 Emp complete 4/19 Wings complete 11/19 Fuse complete 6/20 Finish kit Complete 8/20 Electric/Avionics complete 9/20 Waiting on a motor...
Exempt x 3 - Donated 2020
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12-03-2019, 09:19 AM
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Join Date: Feb 2008
Location: Pecan Plantation Granbury TX
Posts: 20
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Turbulence
I guess I could have mentioned that the ride the entire 1044nm was as smooth as silk.... with the exception of the last 800' prior to landing in Texas.
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12-03-2019, 10:18 AM
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Join Date: Apr 2011
Location: Cincinnati, OH
Posts: 2,791
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I think we need a 300 mph club. My max is 260 mph but I could have been closer to 300 if I had climbed. Yeah, it was smooth in-flight but wicked on the ground.
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Steve Melton
Cincinnati, OH
RV-9A, Tip-up, Superior O-320, roller lifters, 160HP, WW 200RV, dual impulse slick mags, oil pressure = 65 psi, EGT = 1300F, flight hours = 800+ for all
Simplicity is the art in design.
My Artwork is freely given and published and cannot be patented.
www.rvplasticparts.com
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12-03-2019, 11:57 AM
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Join Date: Oct 2006
Location: Foley, Al
Posts: 563
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My max GPS ground speed to date is 240 mph. I agree with others that your IAS is all important regarding turbulence but on everything else I LOVE the ground speeds I see in these planes. After all, it IS the number that will tell you exactly when you'll arrive at the destination. I tell my non-aviation passengers that this speed is what you would see on the speedometer if you were driving. Thay can relate and it never fails to impress.
__________________
Paul Gray
Foley, Alabama
N729PG..... 450+ hrs
RV 7A, Lycoming 0 320 D1A, Sensenich FP propeller
pilotforfun2001@yahoo.com
VAF supporter $$$
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12-03-2019, 03:16 PM
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Join Date: Jun 2012
Location: Frederick, MD
Posts: 821
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Real aviators use knots and NM. 
While the groundspeed data is reliable, a real measure of performance from the airplane is TAS. Of course PA and engine power have to be factored in.
__________________
Dan Morris
Frederick, MD
PA28-140
Hph 304CZ
RV6 built and sold
N199EC RV6A flying
Learn the facts. "Democracy dies in darkness"
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12-03-2019, 03:46 PM
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Join Date: Feb 2008
Location: Pecan Plantation Granbury TX
Posts: 20
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 Wow, hey thanks for the information. I'm sure hardly anyone flying an RV knew any of the things you mentioned.
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