Fast?

[Stitch462]

Originally Posted by JFCRV12

lol! Yep...thus the "?" after Fast in thread title. I really enjoy the plane and it's certainly fast enough for me. But, it's a bit like saying I have the fastest slow car out there!

That's OK as long as you drive it to Reno, NV "The World's Biggest Little City"

[scottmillhouse]

I spent a lot of time on my 12 playing around and re-pitching the prop. Ended up back to Van's setting but at one time during cold weather I could do 128 knots at 5500 at about 3500' with Dynon Betty screaming at me to slow down. Quickly re-pitched for better climb especially with passengers and warmer weather.

[NinerBikes]

Originally Posted by JFCRV12

lol! Yep...thus the "?" after Fast in thread title. I really enjoy the plane and it's certainly fast enough for me. But, it's a bit like saying I have the fastest slow car out there!

Compared to a Sling2, or a KitFox 7, it is faster. By how much, I'm not sure. I've yet to see a Rans S-19 Venturra in person, but it looks similar.

[rongawer]

Fast?....it's all relative I suppose.

[gasman]

Originally Posted by NinerBikes

Compared to a Sling2, or a KitFox 7, it is faster. By how much, I'm not sure. I've yet to see a Rans S-19 Venturra in person, but it looks similar.

Speed for a KitFox must not be a problem....... There is a one year wait for a 7 kit. And a FIVE year wait for the S-LSA...........

[Piper J3]

This is interesting… I’ve been flying solo pretty much all summer because of COVID. Today I took my friend up - 350 lbs. passengers and 15 gallons fuel. Cruise speed at 2500 MSL is about 6 knots faster TAS with above loading Vs. solo (even w/ min. fuel). I’m sure COG is changed with added passenger and I’m guessing center of pressure on the airfoil is in a better spot for cruise flight. Not hard scientific data but also not fake news…

[RFSchaller]

Jim,

Try it again solo and see if you get the old numbers. Might be OAT sensor drift.

RICH

[Piper J3]

Here's what I'm planning... Over the next few weeks I'll make several flights solo and dual (with same pax) and carefully monitor and record parameters of the flights keeping things as constant as possible with exception of passenger loading. I'll record MAP to see if engine is producing same power setting.

[Mitch757]

I just flew a new RV12is from Aurora to Cape Cod and the fuel economy was exceptional: 77 gallons, 2387 NM (with tailwinds part of the way). Speed was about the same as the ULS but fuel consumption was 3.5 to 3.7 gph. Flew most of the way at 11,500 ft. Longest leg was 4.2 hours with 5 gallons remaining.

I was never comfortable with more than 3 hours in my RV12 ULS.

[Piper J3]

That's really incredible. I know fuel injected 912iS has better fuel economy than ULS and I wonder how that's achieved? Seems to me it takes certain quantity of fuel to make same horsepower regardless of how fuel is atomized. Probably different mapping for the ignitions, O2 sensing, FADEC controls, etc.