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-   -   Introducing the RV-14 (https://vansairforce.net/community/showthread.php?t=89023)

DanH 07-30-2012 02:56 PM

Quote:

Originally Posted by BHunt (Post 684612)
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?

BHunt 07-30-2012 03:10 PM

Quote:

Originally Posted by DanH (Post 684620)
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.

rvnor 07-31-2012 07:57 AM

MOGAS
 
Jupp, the 408 is approved for MOGAS with lower compression, 218 HP:D
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

Bruce 07-31-2012 11:17 AM

Quote:

Originally Posted by Sig600 (Post 684422)
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 ?????

Neal@F14 07-31-2012 11:35 AM

Quote:

Originally Posted by Bruce (Post 684897)
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.

Ausflyer 08-03-2012 03:40 AM

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

rleffler 08-03-2012 06:11 AM

Quote:

Originally Posted by Ausflyer (Post 685720)
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

rocketbob 08-03-2012 06:58 AM

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.

bill@fusion4.net 08-03-2012 07:07 AM

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

Ausflyer 08-03-2012 06:46 PM

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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