Re: F24R46/UC61K Vne Anomaly

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coxargus
Posts: 39
Joined: Mon Dec 16, 2019 9:24 am

F24R46/UC61K Vne Anomaly

Post by coxargus »

'Folks,

I am getting pretty close to getting my UC61K/Argus back into the air - Paperwork permitting!
However I have come across an anomaly with regard to the ASI Vne red line. Some time ago I had the ASI red line marked at 185mph as per TCDS A-706  but today I was browsing the Pilot Operating Instructions (AN01-115CC-1 dated 25 August 1944) where, at  Section III under Flight Operating Data it gives a Vne of 160mph.
Was this lower 'Military Limit' perhaps imposed to prevent those pilots who were keen to 'Explore the edges of the envelope' getting anywhere near the real limit?!?
What are people out there actually using as Vne these days?
Many thanks
Frank CoxArgus III G-BCBL






'
coxargus
Posts: 39
Joined: Mon Dec 16, 2019 9:24 am

Re: F24R46/UC61K Vne Anomaly

Post by coxargus »

'After further research I have found that 185mph equates to 160.7 Knots.Could it be that the  Operating instructions are in error on this - Quite a coincidence perhaps?
I therefore feel that 185mph is correct - what about y'all?
'
james chybicki
Posts: 213
Joined: Fri Aug 16, 2002 11:37 am

Re: F24R46/UC61K Vne Anomaly

Post by james chybicki »

' Hi FrankOurs is also marked at 185 MPHJim 
On Thursday, March 7, 2019, 3:13:47 AM CST, frankjcox44@gmail.com [fairchildclub] wrote:


 
After further research I have found that 185mph equates to 160.7 Knots.Could it be that the  Operating instructions are in error on this - Quite a coincidence perhaps?
I therefore feel that 185mph is correct - what about y'all?
'
jstreat360
Posts: 50
Joined: Wed Dec 19, 2001 4:13 pm

Re: F24R46/UC61K Vne Anomaly

Post by jstreat360 »

'Per TC.  94 MPH Flaps and ST-250 Light185 MPH Dive (VNE)137 MPH Level flight cruise  Good luck on getting cruise at 137 MPH. Best I ever got with Aeromatic and running hard was 127 MPH at near SL. Anything at or above 135mph the ailerons are really heavy. Plane no like.  JST      From: fairchildclub@yahoogroups.com
Sent: Thursday, March 7, 2019 7:48 AM
To: frankjcox44@gmail.com [fairchildclub]
Subject: Re: [fairchildclub] Re: F24R46/UC61K Vne Anomaly    Hi FrankOurs is also marked at 185 MPHJim     On Thursday, March 7, 2019, 3:13:47 AM CST, frankjcox44@gmail.com [fairchildclub] wrote:      After further research I have found that 185mph equates to 160.7 Knots.Could it be that the  Operating instructions are in error on this - Quite a coincidence perhaps? I therefore feel that 185mph is correct - what about y'all?'
Jp Lorie
Posts: 62
Joined: Wed Dec 16, 2009 7:20 am

Re: F24R46/UC61K Vne Anomaly

Post by Jp Lorie »

'On that same note, does anyone know what Vx and Vy is for an F 24 with the Warner 165?

J.P. Lorie`
On Mar 6, 2019, at 11:55, frankjcox44@gmail.com [fairchildclub] wrote:
 
Folks,

I am getting pretty close to getting my UC61K/Argus back into the air - Paperwork permitting!
However I have come across an anomaly with regard to the ASI Vne red line. Some time ago I had the ASI red line marked at 185mph as per TCDS A-706  but today I was browsing the Pilot Operating Instructions (AN01-115CC-1 dated 25 August 1944) where, at  Section III under Flight Operating Data it gives a Vne of 160mph.
Was this lower 'Military Limit' perhaps imposed to prevent those pilots who were keen to 'Explore the edges of the envelope' getting anywhere near the real limit?!?
What are people out there actually using as Vne these days?
Many thanks
Frank CoxArgus III G-BCBL






'
Bart R.J. Decock
Posts: 18
Joined: Tue Nov 06, 2018 10:16 am

Re: F24R46/UC61K Vne Anomaly

Post by Bart R.J. Decock »

' Hello Frank,
I have sent you a pm .
Cheers,
Bart
On Thursday, 7 March 2019, 16:23:38 CET, Jp Lorie jp.lorie@yahoo.com [fairchildclub] wrote:


 
On that same note, does anyone know what Vx and Vy is for an F 24 with the Warner 165?

J.P. Lorie`
On Mar 6, 2019, at 11:55, frankjcox44@gmail.com [fairchildclub] wrote:

 
Folks,

I am getting pretty close to getting my UC61K/Argus back into the air - Paperwork permitting!
However I have come across an anomaly with regard to the ASI Vne red line. Some time ago I had the ASI red line marked at 185mph as per TCDS A-706  but today I was browsing the Pilot Operating Instructions (AN01-115CC-1 dated 25 August 1944) where, at  Section III under Flight Operating Data it gives a Vne of 160mph.
Was this lower 'Military Limit' perhaps imposed to prevent those pilots who were keen to 'Explore the edges of the envelope' getting anywhere near the real limit?!?
What are people out there actually using as Vne these days?
Many thanks
Frank CoxArgus III G-BCBL






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coxargus
Posts: 39
Joined: Mon Dec 16, 2019 9:24 am

Re: F24R46/UC61K Vne Anomaly

Post by coxargus »

'Thanks Jamie and Jim -
185mph/160kts it is - although I found the old limitations placard which stated 160mph in line with the POH.Frank
'
robert Etter
Posts: 234
Joined: Tue Feb 27, 2001 7:37 pm

Re: F24R46/UC61K Vne Anomaly

Post by robert Etter »

' Vne….I doubt if I will ever see 75% of Vne.  Being brave...not me.
On ?Saturday?, ?March? ?9?, ?2019? ?02?:?21?:?40? ?AM? ?PST, frankjcox44@gmail.com [fairchildclub] wrote:


 
Thanks Jamie and Jim -
185mph/160kts it is - although I found the old limitations placard which stated 160mph in line with the POH.Frank
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robert Etter
Posts: 234
Joined: Tue Feb 27, 2001 7:37 pm

Re: F24R46/UC61K Vne Anomaly

Post by robert Etter »

' Thanks to Wiki
Vx - Speed for best angle of climbVy - Speed for best rate of climb.
Bob
On ?Thursday?, ?March? ?7?, ?2019? ?07?:?23?:?35? ?AM? ?PST, Jp Lorie jp.lorie@yahoo.com [fairchildclub] wrote:


 
On that same note, does anyone know what Vx and Vy is for an F 24 with the Warner 165?

J.P. Lorie`
On Mar 6, 2019, at 11:55, frankjcox44@gmail.com [fairchildclub] wrote:

 
Folks,

I am getting pretty close to getting my UC61K/Argus back into the air - Paperwork permitting!
However I have come across an anomaly with regard to the ASI Vne red line. Some time ago I had the ASI red line marked at 185mph as per TCDS A-706  but today I was browsing the Pilot Operating Instructions (AN01-115CC-1 dated 25 August 1944) where, at  Section III under Flight Operating Data it gives a Vne of 160mph.
Was this lower 'Military Limit' perhaps imposed to prevent those pilots who were keen to 'Explore the edges of the envelope' getting anywhere near the real limit?!?
What are people out there actually using as Vne these days?
Many thanks
Frank CoxArgus III G-BCBL






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JP
Posts: 20
Joined: Wed Feb 04, 2015 9:43 am

Re: F24R46/UC61K Vne Anomaly

Post by JP »

'Robert, Thanks for responding but I was looking for the numbers for each. Do you know what they would be? Thanks for your help.

J.P. Lorie` 
On Mar 11, 2019, at 11:01 AM, Robert Etter robertetter@ymail.com [fairchildclub] wrote:
 
Thanks to Wiki
Vx - Speed for best angle of climbVy - Speed for best rate of climb.
Bob On ?Thursday?, ?March? ?7?, ?2019? ?07?:?23?:?35? ?AM? ?PST, Jp Lorie jp.lorie@yahoo.com [fairchildclub] wrote:

 
On that same note, does anyone know what Vx and Vy is for an F 24 with the Warner 165?

J.P. Lorie`
On Mar 6, 2019, at 11:55, frankjcox44@gmail.com [fairchildclub] wrote:

 
Folks,

I am getting pretty close to getting my UC61K/Argus back into the air - Paperwork permitting!
However I have come across an anomaly with regard to the ASI Vne red line. Some time ago I had the ASI red line marked at 185mph as per TCDS A-706  but today I was browsing the Pilot Operating Instructions (AN01-115CC-1 dated 25 August 1944) where, at  Section III under Flight Operating Data it gives a Vne of 160mph..
Was this lower 'Military Limit' perhaps imposed to prevent those pilots who were keen to 'Explore the edges of the envelope' getting anywhere near the real limit?!?
What are people out there actually using as Vne these days?
Many thanks
Frank CoxArgus III G-BCBL







'
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