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  #11  
Old 06-17-2019, 06:13 AM
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DanH DanH is offline
 
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Quote:
Originally Posted by RV6_flyer View Post
Forgot to mention, "Precision, Short, Soft-Field landings" are what I do almost all the time. If you do not do them, get proficient with them before OSH and be ready for a "go-around" just in case.
Make a few of those practice landings from a close right hand pattern, required for 27.

If sent to the second dot, clear the runway to the side as soon as practical.

Here's one for The Walk Of Shame. Practice. Don't be this guy.

You're looking at Rwy 27, Sunday morning a few years back. Cirrus 874T had been cleared to the orange dot, the first one at the threshold. He overflew too fast, tried to force it, bounced, and hit nose first. The gigantic inhalation from the lawn chair row drew my attention. Here's the first shot when I got the camera on him. He is about to make his third touchdown. Note the bent nose gear:



And here it is. Missed the orange dot, but he sure enough hit the green one.



The subsequent re-launch was severe.







But none the less, he pushes over for another try:



...until he finally notices the RV-9 in front of him...



...and adds power. He on the edge of a stall...



..but manages to miss.



The folks in that RV-9 are Roy and Sandy Thoma (Capt Sandy). Roy had landed on the green dot as directed, and (thankfully) started for the runway edge as soon as practical, expecting to turn off into the south side grass right past the stuck Lancair. That's smart, and another OSH training habit worth developing. Don't brake heavily, but do clear the runway ASAP.
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Last edited by DanH : 06-17-2019 at 03:25 PM.
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  #12  
Old 06-17-2019, 06:34 AM
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uk_figs uk_figs is offline
 
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Originally Posted by chopowski View Post
A more general question about slow flight and flaps, how would you know at what speed of slow flight it would be safer to put some flaps in and increase power?
I have found that 15 deg flaps helps in my -7 at 90 kts, pitches the nose down a bit for better forward visibility, and carry a bit more power if you have to break out.
Figs
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  #13  
Old 06-17-2019, 07:43 AM
painless painless is offline
 
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Originally Posted by uk_figs View Post
I have found that 15 deg flaps helps in my -7 at 90 kts, pitches the nose down a bit for better forward visibility, and carry a bit more power if you have to break out.
Figs

Agree with this.
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  #14  
Old 06-17-2019, 07:46 AM
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Quote:
Originally Posted by chopowski View Post
A more general question about slow flight and flaps, how would you know at what speed of slow flight it would be safer to put some flaps in and increase power?
Most of the RVs has a designer recommendation of 100 MPH (87 Kts) or less as flap speed. Being that it is experimental built and flown aircraft, IF you have tested your flaps in Phase I at a higher speed, it becomes a personal option.

I prefer to use flaps for landing. I tend to not put flaps down till I am in the traffic pattern.
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  #15  
Old 06-17-2019, 07:48 AM
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FlyFastJP FlyFastJP is offline
 
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I'm doing this exact thing this weekend for my first ever trip to OSH. Like others, I don't fly this slow unless I'm in the pattern. I need to know the extended time power settings and what my oil temp will be doing at 90kts. Good to see I'm not the only that thinks practice at slow flight should be a pre-requisite for this event.
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  #16  
Old 06-17-2019, 08:19 AM
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Then get 2 or 3 buddies and fly "over the railroad tracks with half mile spacing at 90 kts and 1000 agl." Take turns mixing up the order.
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  #17  
Old 06-17-2019, 02:38 PM
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Ed_Wischmeyer Ed_Wischmeyer is offline
 
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Quote:
Originally Posted by RV6_flyer View Post
Most of the RVs has a designer recommendation of 100 MPH (87 Kts) or less as flap speed. Being that it is experimental built and flown aircraft, IF you have tested your flaps in Phase I at a higher speed, it becomes a personal option.
It may be a personal option, but the structure and the laws of physics don't care what you prefer. Yes, you can check the aerodynamics in Phase 1, but that doesn't do anything for checking structural integrity and safety margins.

Be real careful when exceeding designers' recommendations! Getting away with something once or twice doesn't mean that it's "safe."
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  #18  
Old 06-17-2019, 05:20 PM
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RV8JD RV8JD is offline
 
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Quote:
Originally Posted by RV6_flyer View Post
Most of the RVs has a designer recommendation of 100 MPH (87 Kts) or less as flap speed. Being that it is experimental built and flown aircraft, IF you have tested your flaps in Phase I at a higher speed, it becomes a personal option.
Per Van's:
For the RV-4s, -6s, -7s, and -8s, the Flap Placard Speed is 110 MPH for 20 degrees and less, and 100 MPH for Full Flaps.

For the RV-9, the Flap Placard Speed is 100 MPH for 15 degrees and less, and 90 MPH for Full Flaps.
Reference - The Construction Manual:

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  #19  
Old 06-17-2019, 11:54 PM
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RV6_flyer RV6_flyer is offline
 
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Quote:
Originally Posted by RV8JD View Post
Per Van's:
For the RV-4s, -6s, -7s, and -8s, the Flap Placard Speed is 110 MPH for 20 degrees and less, and 100 MPH for Full Flaps.

For the RV-9, the Flap Placard Speed is 100 MPH for 15 degrees and less, and 90 MPH for Full Flaps.
Reference - The Construction Manual:

30-years ago, the RV-6 manual said 100 MPH flap speed. There was not an RV-7 or 8 at that time. Van's did not send out updates to the 30-year old manual and I have not asked for updates.

My RV-6 has manual flaps and I do not have enough strength to put all the flaps out above 75 KIAS.
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Last edited by RV6_flyer : 06-18-2019 at 07:16 AM. Reason: Manual flaps
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  #20  
Old 06-20-2019, 08:29 PM
spannbauer spannbauer is offline
 
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Wow DanH, those are some scary pictures! I'd recommend that everyone take a look at all of the 2018 arrival and departure videos posted by AirShowStuff on YouTube if you've never been to AirVenture before. I don't want to scare anyone, but I just want everyone to be prepared for the potential mess that can happen. The opening weekend in 2018 was a mess due to a slow moving storm front that kept everyone away from Oshkosh until the last minute. Please come prepared!

I've been going for at least 16 years in a row and last year was the worst I've seen.
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