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  #131  
Old 07-30-2012, 02:56 PM
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DanH DanH is offline
 
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Quote:
Originally Posted by BHunt View Post
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?
8.9:1 per the TCDS. Are they "approved" per the same standard?
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  #132  
Old 07-30-2012, 03:10 PM
BHunt BHunt is offline
 
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Quote:
Originally Posted by DanH View Post
8.9:1 per the TCDS. Are they "approved" per the same standard?
After further reading, only the lower compression (8.7:1) IO-408 is approved for mogas.
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  #133  
Old 07-31-2012, 07:57 AM
rvnor rvnor is offline
 
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Default 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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  #134  
Old 07-31-2012, 11:17 AM
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Quote:
Originally Posted by Sig600 View Post
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?
I thought it had Fowler flaps . Reflexable ?????
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  #135  
Old 07-31-2012, 11:35 AM
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Neal@F14 Neal@F14 is offline
 
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Quote:
Originally Posted by Bruce View Post
I thought it had Fowler flaps . Reflexable ?????
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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  #136  
Old 08-03-2012, 03:40 AM
Ausflyer Ausflyer is offline
 
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Default 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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  #137  
Old 08-03-2012, 06:11 AM
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Quote:
Originally Posted by Ausflyer View Post
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

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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  #138  
Old 08-03-2012, 06:58 AM
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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.
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Last edited by rocketbob : 08-03-2012 at 07:01 AM.
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  #139  
Old 08-03-2012, 07:07 AM
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bill@fusion4.net bill@fusion4.net is offline
 
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Default 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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  #140  
Old 08-03-2012, 06:46 PM
Ausflyer Ausflyer is offline
 
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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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