|
-
POSTING RULES

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

06-13-2016, 03:12 PM
|
 |
|
|
Join Date: Apr 2015
Location: Vienna, VA
Posts: 61
|
|
Quote:
Originally Posted by Bob Kuykendall
If by "300Kmph" they mean 300kph, that's only 187 mph, meh.
If they mean 300 mph, well, that's a thing to give pause. I hope they've done their homework.
|
Back of the envelope physics tells me that max speed increases with the square root of the increase of the thrust so the 215hp spec makes me think think 300kph is correct.
__________________
-Bob "Beagle" Brents
RV-8 (Reserved: N808B sorta like " BOBB")
(Empennage: 95%)
(Wings: 60%)
?To invent an airplane is nothing. To build one is something. To fly is everything.? - Otto Lilienthal
https://www.facebook.com/fliegen.beagle
Dues Happily Paid 2019
|

06-13-2016, 03:31 PM
|
 |
|
|
Join Date: Mar 2005
Location: Calgary, Canada
Posts: 5,766
|
|
These are the same folks who created the 1000SHP Legend which cleaned up at the Air Venture Cup race. http://www.airventurecuprace.com/rac...-race-results/
215hp at 25,000 feet might get you close to 300mph TAS- if you can cool it.
I saw this airplane in the flesh about a month ago. Pretty cool project.
Last edited by rv6ejguy : 06-13-2016 at 03:57 PM.
|

06-13-2016, 04:26 PM
|
 |
|
|
Join Date: Sep 2006
Location: Douglas Flat, CA
Posts: 589
|
|
Quote:
Originally Posted by rv6ejguy
...215hp at 25,000 feet might get you close to 300mph TAS- if you can cool it...
|
And if you can keep it from fluttering.
|

06-14-2016, 09:38 AM
|
 |
|
|
Join Date: Jun 2006
Location: Port Orange, FL (7FL6)
Posts: 274
|
|
Quote:
Originally Posted by Bob Kuykendall
And if you can keep it from fluttering.
|
Bingo!!!!!
__________________
Flying as of 1-12-2016!!!!!
|

06-14-2016, 12:12 PM
|
 |
|
|
Join Date: Jan 2005
Posts: 804
|
|
Quote:
Originally Posted by Bob Kuykendall
If by "300Kmph" they mean 300kph, that's only 187 mph, meh.
If they mean 300 mph, well, that's a thing to give pause. I hope they've done their homework.
|
On the other hand, if they really mean 300Kmph, that's very impressive.
I seem to recall the SR71 set a transcontinental speed record from LA to D.C. in roughly an hour which is pretty impressive.
At 300kmph the trip would take just under 28 seconds. In calm winds.
__________________
James Freeman
RV-8 flying
|

08-01-2016, 07:43 AM
|
 |
|
|
Join Date: Sep 2006
Location: Ft Worth, TX
Posts: 20
|
|
Delta V = cube root(HP)
Quote:
Originally Posted by Beagle
Back of the envelope physics tells me that max speed increases with the square root of the increase of the thrust so the 215hp spec makes me think think 300kph is correct.
|
You are right about that. Speed increase is square root of thrust increase, so it is the cube root of HP increase. So, adding HP is an expensive way to increase speed. But, it can be impressive.
__________________
Scott "Stormy" Weathers
N7WX (reserved)
wings
|

06-01-2017, 05:43 PM
|
|
|
|
Join Date: Dec 2013
Location: Gold Coast Australia
Posts: 37
|
|
Images of the RV8S
After full flight testing and receiving its COA from Transport Canada the aircraft was shipped to Hervey Bay Australia and is currently completing its CASA COA. 
Last edited by foxhound57 : 06-03-2017 at 12:12 AM.
|

06-01-2017, 05:48 PM
|
 |
|
|
Join Date: Feb 2005
Location: Northwestern USA
Posts: 1,209
|
|
Quite the inboard landing light location.
__________________
Matt Burch
RV-7 (last 90%)
http://www.rv7blog.com
VAF #836
Any opinions expressed in this message are my own and not those of my employer.
|

06-01-2017, 07:07 PM
|
|
|
|
Join Date: Nov 2010
Location: ____
Posts: 829
|
|
Shreck just might have been right
Quote:
Originally Posted by DaleB
I normally try not to ask why someone would build a plane the way they did. In this case it's kind of tough. You still have a 160-kt two-seat tandem (apparently), it's just longer and heavier and has a bigger engine. More fuel for transoceanic flights? More room for a really tall person?
I'd love to hear what would motivate someone to go to the enormous time and expense it must have taken to build this. I'm sure there's an interesting story there.
|
To quote Shreck ... the hollywoood Shreck that is, " Do you suppose he might be trying to compensate for something?"
Maybe he flew Corsair's or Spitfires and missed not seeing the runway.
All in good humor. In reality that had to be a lot of work, time and money.
It should get above 20,000 Feet very quickly, as long as it does not freeze over a fuel tank vent.
Last edited by F1R : 06-02-2017 at 11:01 AM.
|

06-01-2017, 07:18 PM
|
 |
|
|
Join Date: Jul 2007
Location: Keller, TX
Posts: 1,553
|
|
It looks like there are two baggage doors up front. The front cockpit looks to be normal sized so he did not stretch it to get more room in front. Vents on the side of the cowl sort of like Bonanzas. Throttle on wrong side but to each their own.
It would be great to get the builder on the forum to tell us about it.
__________________
RV-8 180 hp IO-360 N247TD with 10" SkyView!
VAF Donations Made 8/2019 and 12/2019
"Cum omni alio deficiente, ludere mortuis."
(When all else fails, play dead.)
|
| 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 12:16 AM.
|