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  #1  
Old 12-03-2019, 07:39 AM
partner14 partner14 is offline
 
Join Date: Feb 2008
Location: Pecan Plantation Granbury TX
Posts: 20
Default 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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  #2  
Old 12-03-2019, 08:19 AM
brad walton brad walton is offline
 
Join Date: Jul 2007
Location: Cypress, TX
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I guess we need a new category, the "300 mph club".
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  #3  
Old 12-03-2019, 08:58 AM
NewbRVator NewbRVator is offline
 
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?
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  #4  
Old 12-03-2019, 09:04 AM
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wcalvert wcalvert is offline
 
Join Date: Jan 2019
Location: Anacortes Wa
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Winds were huge last week... as long as you were eastbound!

IAS is all that matters
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  #5  
Old 12-03-2019, 09:05 AM
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wcalvert wcalvert is offline
 
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Location: Anacortes Wa
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"IAS is all that matters" when it comes to turbulence penetration speed is what I should say.
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  #6  
Old 12-03-2019, 09:19 AM
partner14 partner14 is offline
 
Join Date: Feb 2008
Location: Pecan Plantation Granbury TX
Posts: 20
Default 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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  #7  
Old 12-03-2019, 10:18 AM
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Steve Melton Steve Melton is offline
 
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Location: Cincinnati, OH
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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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  #8  
Old 12-03-2019, 11:57 AM
Paul 5r4 Paul 5r4 is offline
 
Join Date: Oct 2006
Location: Foley, Al
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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.
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  #9  
Old 12-03-2019, 03:16 PM
RVDan RVDan is offline
 
Join Date: Jun 2012
Location: Frederick, MD
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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.
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  #10  
Old 12-03-2019, 03:46 PM
partner14 partner14 is offline
 
Join Date: Feb 2008
Location: Pecan Plantation Granbury TX
Posts: 20
Wink

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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