VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #11  
Old 12-17-2017, 01:25 PM
alcladrv alcladrv is offline
 
Join Date: Oct 2006
Location: Southeast
Posts: 632
Default

I enjoyed reviewing your work. What you did is pretty neat. I'd choose to build my RV-7 all over again, especially if you somehow worked building cost into your matrix.
Reply With Quote
  #12  
Old 12-17-2017, 01:28 PM
schaplerrh schaplerrh is offline
 
Join Date: Mar 2014
Location: Alexandria VA
Posts: 306
Default

I like what you've done just as it is! Thanks.
Reply With Quote
  #13  
Old 12-17-2017, 06:40 PM
RViter RViter is offline
 
Join Date: Jun 2009
Location: Mesa, AZ
Posts: 244
Default Minor point ...

Quote:
Originally Posted by rolivi View Post
You may consider adding BUY of BUILD since you can't buy a 6 kit anymore.
"... you can't buy a 6 [new] kit anymore." [there are still many built or that could use a refresh.]

You might find the work of Edward Tufte very interesting in his development of graphically representing data.

I like the representation of major decisions and design differences. Of course, you've already shown the most important, "Is it a Vans RV?" -- after that the other choices are easier to detail. After completing an RV-6A QB kit my criteria would be largely influenced by "pre-punched vs not" (with the division occurring at the RV-7 forward.)

My 2nd preference might be the overall advancements in kit design and ease of assemble, where I'd give the RV-14 high marks. But price of kit/engine and long-term operational costs would favor the RV-9.
__________________
gary
RV-6A QB Tip-Up, 1st Flight 3/18/17
O-360-J2A (modified & F/I), Sensenich FP (cruise)
VP-X Sport, Dynon SkyView, VFR day
(FFZ) Mesa, AZ - N234GB -
www.mykitlog.com/garyc
Reply With Quote
  #14  
Old 12-17-2017, 07:10 PM
plehrke's Avatar
plehrke plehrke is offline
 
Join Date: Sep 2006
Location: Defiance, MO
Posts: 1,828
Default



You missed the one and only decision point question?

Which one do you want?

In the end you need to be happy with it.
__________________
Philip
RV-6A - flying 970+ hours
Based at 1H0 (Creve Coeur)
Paid dues yearly since 2007
Reply With Quote
  #15  
Old 12-17-2017, 07:25 PM
DrDrift DrDrift is offline
 
Join Date: Oct 2017
Location: Central Florida
Posts: 17
Default

Quote:
Originally Posted by plehrke View Post

You missed the one and only decision point question?

Which one do you want?

In the end you need to be happy with it.
I don't understand. Is "all of them" not a valid answer?

These graphics are really not intended to help me (or anyone) choose which RV to buy. Think of it more like a field guide to identification. For those mentioning cost, I have a few other plots that show cost of acquisition vs cruise speed vs fuel efficiency for a variety of GA aircraft.

I started a previous thread about commuting with an RV, and that generated great feedback and some of the trade-offs associated with the model choice. In my case, I have a strong preference for tailwheel, but I don't think I care (yet?) about tip vs slide canopy. I'm somewhat-desperately searching for a used RV-3 to buy, but that's largely because of my requirements to quickly move one person between two cities for a reasonable price.

For those pointing out that the -6 is no longer sold as a kit, I intended the chart to include "all available RV models", including the used market. I used the 6/7 designation since the 7 replaces the 6 and are not differentiated with the coarse decision points I have listed.

Last edited by DrDrift : 12-17-2017 at 07:34 PM.
Reply With Quote
  #16  
Old 12-17-2017, 08:51 PM
DrDrift DrDrift is offline
 
Join Date: Oct 2017
Location: Central Florida
Posts: 17
Default In case we haven't already exhausted this topic...

Per RV8JD's suggestion, here's the Van's diagram showing the landing gear and canopy options for each of the RV aircraft:




The RV-6, RV-7, and RV-9 are the only three available with a choice in canopy and landing gear.

Both the RV-3 and RV-4 accommodate both canopy types, but are taildragger only.

The RV-8 is a slider-only, but can be built with both gear types.

The RV-14 is tip-up-only and can be built with both gear types.

The RV-12 is only available with tip-up and tricycle.

The RV-10 is tricycle only, and has doors, so technically has neither a tip-up nor a slider.

The option availability is based on what I found on the Van's site and excludes custom modifications.

------
Edit: Thanks PilotjohnS, I re-read the description and found this: "The robust fuselage and cabin are identical to the RV-7/7A and there are the same sliding/tip-up canopy and trigear/tailwheel landing gear options.". I changed the diagram to reflect your edit.

Last edited by DrDrift : 12-17-2017 at 09:41 PM. Reason: Mistakenly grouped the RV-9 with the 14, rather than the 6/7
Reply With Quote
  #17  
Old 12-17-2017, 09:27 PM
PilotjohnS PilotjohnS is offline
 
Join Date: Jan 2016
Location: Southwest
Posts: 1,807
Default Uh

I am build a RV9 slider.
__________________
John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Dues paid 2021, worth every penny

RV9A- Status:
95% done, 10% left to go
Electrical/Panel done
Firewall Forward 75%done
Fiberglass 0%, thought i was building in metal?
www.pilotjohnsrv9.blogspot.com
Reply With Quote
  #18  
Old 12-18-2017, 10:18 AM
Snowflake's Avatar
Snowflake Snowflake is offline
 
Join Date: Oct 2009
Location: Sidney, BC, Canada
Posts: 4,276
Default

Of course the RV-8 can have a tip-up canopy as well... I think it's been done on some with fastbacks?

And -3, -4, and -8 can have fastback conversions... Yet more loops for the Vans diagram?
__________________
Rob Prior
1996 RV-6 "Tweety" C-FRBP (formerly N196RV)
Reply With Quote
  #19  
Old 12-18-2017, 10:31 AM
ChiefPilot's Avatar
ChiefPilot ChiefPilot is offline
 
Join Date: Jan 2005
Location: Twin Cities, MN
Posts: 1,580
Default

Which ones have the best turn rate and radius? And which ones can generate the best specific energy in the shortest period of time? What about spanwise loading, or more to the point, energy retention under increased load factors?

Asking for a friend...
__________________
Brad Benson, Maplewood MN.
RV-6A N164BL, Flying since Nov 2012!
If you're not making mistakes, you're probably not making anything
Reply With Quote
  #20  
Old 12-19-2017, 01:27 PM
Stitch462's Avatar
Stitch462 Stitch462 is offline
 
Join Date: Nov 2008
Location: Mead, WA
Posts: 226
Default

Quote:
Originally Posted by ChiefPilot View Post
Which ones have the best turn rate and radius? And which ones can generate the best specific energy in the shortest period of time? What about spanwise loading, or more to the point, energy retention under increased load factors?

Asking for a friend...
But can it do a 4g negative pushover unlike our MiG friends?

__________________
Stitch
MSgt, USAF, Ret.
RV-8 Dreamer
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 11:22 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.