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07-30-2012, 02:56 PM
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Join Date: Oct 2005
Location: 08A
Posts: 9,500
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Quote:
Originally Posted by BHunt
That engine has a 10.5:1 compression ratio and is cleared for 91 UL. How is the 390 not approved for mogas with a 8.7:1?
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8.9:1 per the TCDS. Are they "approved" per the same standard?
__________________
Dan Horton
RV-8 SS
Barrett IO-390
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07-30-2012, 03:10 PM
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Join Date: Mar 2012
Location: Wichita Falls, TX
Posts: 315
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Quote:
Originally Posted by DanH
8.9:1 per the TCDS. Are they "approved" per the same standard?
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After further reading, only the lower compression (8.7:1) IO-408 is approved for mogas.
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07-31-2012, 07:57 AM
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Join Date: Aug 2008
Location: 70'N ENNA Norway
Posts: 14
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MOGAS
Jupp, the 408 is approved for MOGAS with lower compression, 218 HP 
And the 390 will also run on MOGAS if the compression is lowered, performing around 200HP.
Remeber, this is Experimental, we can make the changes we want.
And BPE or anyone....will probably offer 390 for MOGAS if we, the customers, want it
OlaM
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07-31-2012, 11:17 AM
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Join Date: Feb 2006
Location: Anywhere, USA
Posts: 1,132
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Quote:
Originally Posted by Sig600
It didn't look like it from the "walk around" video, but does anyone know if the -14 uses a reflexed flap position like the -10 in cruise?
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I thought it had Fowler flaps . Reflexable ?????
__________________
Bruce (BOOMER) Pauley
Kathy (KAT) Pauley
RV 7A--"MISS MARIE"--- N177WD (SOLD FLYING)72742
VAF #582-----------------EAA LIFETIME MEMBER
EX -KC-135A -------------BOOM OPERATOR #3633
VAN'S FLIGHT------------#6930
See you in OSHKOSH
http://www.mykitlog.com/users/index....ley&project=84
=VAF= 2006-2020 DUES PAID
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07-31-2012, 11:35 AM
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Join Date: Aug 2007
Location: Wichita Falls, TX
Posts: 2,182
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Quote:
Originally Posted by Bruce
I thought it had Fowler flaps . Reflexable ?????
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Not Fowler flaps, just slotted flaps with the hinges shaped like V's under the flap/wing. Very easy to reflex by adjusting the length of the flap pushrods.
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Neal Howard
Airplaneless once again...
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08-03-2012, 03:40 AM
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Join Date: Jun 2008
Location: Byron Bay, NSW
Posts: 104
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How much help needed?
I have completed a -12 and really enjoyed the process. Vans technology and paperware were so user-friendly.
I keep seeing reports that the -14 has the same process, and builders can expect a 30% reduction in build time, compared with the -7.
What I have not been able to find in posts to date is just how much of the -14 riveting is solid rivets. And more importantly for me, how much of the solid riveting needs a helper on the bucking bar? I built my -12 on my own. Including flipping the wings. I could set all the rivets without assistance.
Can a -14 be built with minimal help?
Rod
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08-03-2012, 06:11 AM
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Join Date: Jun 2006
Location: Delaware, OH (KDLZ)
Posts: 4,196
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Quote:
Originally Posted by Ausflyer
I have completed a -12 and really enjoyed the process. Vans technology and paperware were so user-friendly.
I keep seeing reports that the -14 has the same process, and builders can expect a 30% reduction in build time, compared with the -7.
What I have not been able to find in posts to date is just how much of the -14 riveting is solid rivets. And more importantly for me, how much of the solid riveting needs a helper on the bucking bar? I built my -12 on my own. Including flipping the wings. I could set all the rivets without assistance.
Can a -14 be built with minimal help?
Rod
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Rod,
I'm building a 10, so I can tell you it can be done by yourself. However, there are some tasks that are easier with a partner. Since the 14 uses the 10 wing, riveting the bottom skin is easier if you have a partner to assist. The RV-10 community has a cheat sheet on the order of rivets to do first to make the job easier. I suspect the logic would apply to the 14 as well.
bob
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08-03-2012, 06:58 AM
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Join Date: Jun 2006
Location: 8I3
Posts: 3,564
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Late to this thread. Saw the -14 at OSH and my overall opinion on it is....
meh.
Just flew a -7 this week and was reminded how much nicer a -6 flies. The -14 will fly like the -10...heavy.
__________________
Please don't PM me! Email only!
Bob Japundza CFI A&PIA
N9187P PA-24-260B Comanche, flying
N678X F1 Rocket, under const.
N244BJ RV-6 "victim of SNF tornado" 1200+ hrs, rebuilding
N8155F C150 flying
N7925P PA-24-250 Comanche, restoring
Not a thing I own is stock.
Last edited by rocketbob : 08-03-2012 at 07:01 AM.
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08-03-2012, 07:07 AM
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Join Date: Feb 2011
Location: Suwanee, GA
Posts: 415
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I agree with Bob
I'm building a 10, and I have had less than 5 hours of someone helping me rivet. I am done with 99% of the riveting. Most of that was on the fuselage.
Bill
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08-03-2012, 06:46 PM
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Join Date: Jun 2008
Location: Byron Bay, NSW
Posts: 104
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Hi Bill and Bob
Thanks for your encouraging replies. It looks like Vans has single builder as one of their design constraints on the -10. I hope the -14 is the same. They need to point it out more clearly in their promptional releases, if that's the case.
With the 12 vans made a big thing of the lack of jigs and the small collection of tools required. I hope we hear more of that stuff for the -14.
Rod
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