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  #1  
Old 11-30-2020, 09:58 PM
billytime1 billytime1 is online now
 
Join Date: Feb 2014
Location: spring valley
Posts: 67
Default The new RV shall be?

My turn to fall on the sword
Maybe vans could keep the current fleet of planes and offer a different wing foil , I know the 9 has something but a wing for the 7,8,14 that is more laminar . Iím sure there is a lot of engineering for the rest of the story..
Maybe call it the vans rv51
Billythekid
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  #2  
Old 11-30-2020, 10:59 PM
terrye terrye is offline
 
Join Date: Feb 2010
Location: Vancouver, BC, Canada
Posts: 916
Default The new RV shall be?

The RV-3, RV-4, RV-6(A), RV-7(A) and RV-8(A) all use the NACA 23013.5 airfoil (popular with lots of other planes including the DC-3 and Beech Bonanza).

The RV-9(A) uses a Roncz custom airfoil and the RV-10 and RV-14(A) both use the same Vans (designed by a NACA engineer) custom airfoil.

Laminar all by itself needs thick skins to maintain the critical shape. I don't know for sure but I think the RV-9(A) and RV-10 and RV-14(A) have at least partial laminar shapes.
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  #3  
Old 11-30-2020, 11:04 PM
billytime1 billytime1 is online now
 
Join Date: Feb 2014
Location: spring valley
Posts: 67
Default

Maybe a taper wing and or composite as well .
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  #4  
Old 12-01-2020, 04:04 AM
Andy_RR Andy_RR is offline
 
Join Date: Oct 2006
Location: Melbourne, Australia
Posts: 436
Default

@scsmith is working on such a thing

https://vansairforce.com/community/s...=133700&page=1
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  #5  
Old 12-15-2020, 06:32 AM
Mike Houston Mike Houston is offline
 
Join Date: Dec 2020
Location: Bushmills
Posts: 21
Default electric diesel RV

No idea what the new RV will be but hybrid an electric are coming and are going to leave Lycoming and Vans sitting in the dust if they dont look out.

For instance think of a plane with say a 20Kwhour battery, about 40 hp stored. That would weigh about 70kg using current battery technology a small electric motor to drive the prop. This arrangement would have enough power to drive any RV for 20-30 mins so it could get to a safe landing spot and has virtually no moving parts to wear out.

Attach this to virtually any diesel car engine which can produce enough power to keep the battery trickle charged as you fly and you will have a very economical and safe way to fly. Jet A for fuel cutting your cost for fuel by a 2/3 $10 - $15,000 power plant for a 250-350 hp diesel car engine, Batteries cost around $120 a kw at present. So $3600 for the battery and about $1000 for electronics to manage power flow etc.

Somebody has to be working on such a thing, it would weigh about 100kgs more than a current power plant if including the battery but the extra power available from a modern diesel engine should overcome that

Last edited by Mike Houston : 12-15-2020 at 06:45 AM.
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  #6  
Old 12-15-2020, 11:08 AM
salty salty is offline
 
Join Date: Nov 2020
Location: FL
Posts: 62
Default

Quote:
Originally Posted by Mike Houston View Post
No idea what the new RV will be but hybrid an electric are coming and are going to leave Lycoming and Vans sitting in the dust if they dont look out.

For instance think of a plane with say a 20Kwhour battery, about 40 hp stored. That would weigh about 70kg using current battery technology a small electric motor to drive the prop. This arrangement would have enough power to drive any RV for 20-30 mins so it could get to a safe landing spot and has virtually no moving parts to wear out.

Attach this to virtually any diesel car engine which can produce enough power to keep the battery trickle charged as you fly and you will have a very economical and safe way to fly. Jet A for fuel cutting your cost for fuel by a 2/3 $10 - $15,000 power plant for a 250-350 hp diesel car engine, Batteries cost around $120 a kw at present. So $3600 for the battery and about $1000 for electronics to manage power flow etc.

Somebody has to be working on such a thing, it would weigh about 100kgs more than a current power plant if including the battery but the extra power available from a modern diesel engine should overcome that
Very niche-y. Electric sounds great in theory, and would be fun for people that like to mess with experimental stuff that doesn't fly much, but that's about it.
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  #7  
Old 12-15-2020, 12:03 PM
gap gap is offline
 
Join Date: Oct 2019
Location: Alpharetta
Posts: 18
Default

I'm guessing the next model will be driven by the forthcoming changes to the LSA specs.
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  #8  
Old 12-15-2020, 06:03 PM
mikerkba mikerkba is offline
 
Join Date: Sep 2008
Location: Ely, Nevada
Posts: 229
Default Sparky is heavy.

Quote:
Originally Posted by salty View Post
Very niche-y. Electric sounds great in theory, and would be fun for people that like to mess with experimental stuff that doesn't fly much, but that's about it.
Agreed. Yes, I'd love to try electric on a single or two seat small LSA for a neat, different, quiet, 60 minutes "around the airport" plane.

For everything else, I carry 1/15th of the fuel weight for what I need and pick up the rest along the way. Electric requires I carry it all along.
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BUILDER: N92MB RV7A (A/W 3/2009) - Sold
ADOPTED/reworked: N4032Q RV8A (8/2017)
Building: S-21 Outback/Titan, tail and cockpit mated (3/2020)
KELY/Ely, NV
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  #9  
Old 12-15-2020, 07:28 PM
EFG EFG is offline
 
Join Date: May 2009
Location: Linden, NJ
Posts: 45
Default

Sonex put a huge effort into an electric airplane.

Went nowhere, but their prototype did fly.
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  #10  
Old 12-15-2020, 07:51 PM
Northernliving Northernliving is offline
 
Join Date: May 2005
Location: Boston, MA
Posts: 497
Default Electric/Hydrogen powered flight

Quote:
Originally Posted by salty View Post
Very niche-y. Electric sounds great in theory, and would be fun for people that like to mess with experimental stuff that doesn't fly much, but that's about it.
There needs to be a different battery technology before electric flight is more than a science fair project. It will come, though. Electric/Hydrogen powered flight seem to be the focus at the moment. https://qz.com/1943592/electric-airp...-breakthrough/
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RV8 Based at ORH - Purchased
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