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POSTING RULES
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Today's Posts
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View Poll Results: Emergency Decent Poll
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Spin
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3 |
3.23% |
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Slip with flaps
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24 |
25.81% |
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Slip without flaps
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8 |
8.60% |
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Dive with flaps
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6 |
6.45% |
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Dive without flaps
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34 |
36.56% |
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Other
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20 |
21.51% |
11-28-2011, 12:54 PM
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Join Date: Sep 2006
Location: STL/3K6
Posts: 399
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Emergency Descents
What's the fastest and safest way to lose altitude?
Spin might be my first choice, better be good though
Full flap slip? Hard to mess up, likely not be faster than a spin
Dive
If you had to get down quick, what would you do
__________________
RV-8, Both wings with top skins on
-4 bought flying
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11-28-2011, 12:55 PM
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Join Date: Jan 2010
Location: Destin
Posts: 1,543
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pull power, nose over......keep below VNE
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11-28-2011, 01:07 PM
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Join Date: Dec 2009
Location: Jupiter FL.
Posts: 451
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Quote:
Originally Posted by bkthomps
pull power, nose over......keep below VNE
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I was taught this but with the addition of a 45-50 degree bank. Lift vector is a factor.
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VAF DUES 7/13, 12/13, 03/14
Founder/Director
www.Aircraftwraps.com
Replace paint with performance.
This is my personal account and does not reflect the official communications of Aircraftwraps.com. We have retained a username for such correspondence. I post about formation, eating, aerobatics and pilot stuff  .
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11-28-2011, 01:11 PM
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Join Date: May 2009
Location: Houston, TX
Posts: 531
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Quote:
Originally Posted by Rhino889
I was taught this but with the addition of a 45-50 degree bank. Lift vector is a factor.
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+1
Spiral at high bank is the in the POH of a number of certified planes too.
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-Rick Greer, VAF #2492
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11-28-2011, 01:13 PM
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Join Date: Sep 2010
Location: Charlotte NC
Posts: 1,166
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It would depend on why you want to get down so fast. If you had a structural problem and wanted to stay slow then flaps extended and idle would be best. If you want the very fastest way down a 6 G spiral dive at VNE would do the trick. Something more like 2 or 3 G's in a spiral down would however be much more comfortable and still allow for a high rate of decent.
George
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11-28-2011, 01:25 PM
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Join Date: Jan 2005
Location: Round Rock, TX
Posts: 3,778
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Would depend on the type of emergency situation... 
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Reiley
Retired N622DR - Serial #V7A1467
VAF# 671
Repeat Offender / Race 007
Friend of the RV-1
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11-28-2011, 01:27 PM
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Join Date: Jan 2005
Location: NC25
Posts: 3,503
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IF you were smart and built your RV with a Constant Speed prop, all you need to do is push the RPM forward to high RPM and pull the throttle to idle. Now push the nose down. This is a TEST FLIGHT and EMERGENCY maneuver only! (done three times on my RV-6) I do NOT RECOMMEND it as a NORMAL or Standard Operating Procedure.
On my RV=6, I have a 45 degree down line, 4,000 FPM rate of decent, engine gauges are all in the GREEN and airspeed us UNDER REDLINE. Yes it is in the yellow zone at 180 KIAS. (Redline = 183 Kts)
Need to come down faster, then throw in some steep bank S-Turns.
__________________
Gary A. Sobek
NC25 RV-6 Flying
3,400+ hours
Where is N157GS
Building RV-8 S/N: 80012
To most people, the sky is the limit.
To those who love aviation, the sky is home.
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11-28-2011, 01:29 PM
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Join Date: Jul 2009
Location: Bonney Lake, WA
Posts: 295
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I like how Gary subtley called all the fixed pitch RV'ers here dumb.
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Ryan Winslow
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11-28-2011, 01:30 PM
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Join Date: Oct 2007
Location: Sacramento, CA
Posts: 3,344
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Quote:
Originally Posted by LifeofReiley
Would depend on the type of emergency situation... |
Agreed and how much you need to decend to?
We all have learned [hopefully] slowing down to the stall speed can bring you down really fast.
__________________
Mehrdad
N825SM RV7A - IO360M1B - SOLD
N825MS RV14A - IO390 - Flying
Dues paid
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11-28-2011, 01:44 PM
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Join Date: May 2009
Location: Houston, TX
Posts: 531
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Quote:
Originally Posted by RV6_flyer
all you need to do is push the RPM forward to high RPM and pull the throttle to idle. Now push the nose down. This is a TEST FLIGHT and EMERGENCY maneuver only! (done three times on my RV-6) I do NOT RECOMMEND it as a NORMAL or Standard Operating Procedure.
On my RV=6, I have a 45 degree down line, 4,000 FPM rate of decent, engine gauges are all in the GREEN and airspeed us UNDER REDLINE. Yes it is in the yellow zone at 180 KIAS. (Redline = 183 Kts)
Need to come down faster, then throw in some steep bank S-Turns.
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What is your FPM if you do all that, plus a 3G or 6G spiral? Sounds like that would be about max...ie. my feet are burning.
__________________
-Rick Greer, VAF #2492
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