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Spades

 
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rocketerf1(at)yahoo.ca
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PostPosted: Sun Jul 10, 2016 6:44 am    Post subject: Spades Reply with quote

Hi All,
I figured this list might know the best...
I'm putting spades on my newly finished Wag-A-Bond (no I'm not here to debate spades, I'm an experimenter, so I experiment).
I'm wondering if anyone knows why most high wing aerobatic types only have spades on the bottom? Or more so, I want to only put spades on the top, and I'm looking for a good reason not to?
My plane is short and a spade hanging down will cut me one day, so I thought why not put it on the top? I've used Google and to date I've had no luck trying to figure out which is better? In both cases the spade should be running in smooth air (up until full deflection).
Thanks in advance,
Jeff
(Pitts, F1 Rocket, Commanche and newly finished Wag-A-Bond)


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richard.goode(at)russiana
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PostPosted: Sun Jul 10, 2016 8:27 am    Post subject: Spades Reply with quote

There is no aerodynamic reason why spades should be mounted under the wing rather than above – but I suspect those that choose the under-wing position do so for aesthetic reasons!

Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW

Tel:  +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com


From: owner-aerobatic-list-server(at)matronics.com [mailto:owner-aerobatic-list-server(at)matronics.com] On Behalf Of Jeff Deuchar
Sent: 10 July 2016 15:44
To: aerobatic-list(at)matronics.com
Subject: Spades

Hi All,



I figured this list might know the best...



I'm putting spades on my newly finished Wag-A-Bond (no I'm not here to debate spades, I'm an experimenter, so I experiment).



I'm wondering if anyone knows why most high wing aerobatic types only have spades on the bottom? Or more so, I want to only put spades on the top, and I'm looking for a good reason not to?

My plane is short and a spade hanging down will cut me one day, so I thought why not put it on the top? I've used Google and to date I've had no luck trying to figure out which is better? In both cases the spade should be running in smooth air (up until full deflection).



Thanks in advance,

Jeff

(Pitts, F1 Rocket, Commanche and newly finished Wag-A-Bond)

--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.


- The Matronics Aerobatic-List Email Forum -
 

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McFly



Joined: 21 May 2012
Posts: 100
Location: Scottsdale, AZ

PostPosted: Sun Jul 10, 2016 8:50 am    Post subject: Spades Reply with quote

Perhaps there could be some blanking or turbulent air at high AOA for spades on top of the aileron? Spades on bottom may also be more effective due to the hinge point (longer lever arm?).
Here is a pic of a Pitts with spades on top of the wing.
http://globalaviationresource.com/v2/wp-content/gallery/classic-aircraft-displays/img_2468.jpg

Todd McCutchanT-34A & Yak-50
Cell: (260) 402-1740
E-mail: todd(at)fastaircraft.com (todd(at)fastaircraft.com)
www.fastaircraft.com

On Jul 10, 2016, at 11:27 AM, Richard Goode <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)> wrote:
Quote:
<![endif]--> <![endif]-->
There is no aerodynamic reason why spades should be mounted under the wing rather than above – but I suspect those that choose the under-wing position do so for aesthetic reasons!

Richard Goode Aerobatics
Rhodds Farm
Lyonshall
Hereford
HR5 3LW

Tel: +44 (0) 1544 340120
Fax: +44 (0) 1544 340129
www.russianaeros.com


From: owner-aerobatic-list-server(at)matronics.com (owner-aerobatic-list-server(at)matronics.com) [mailto:owner-aerobatic-list-server(at)matronics.com (owner-aerobatic-list-server(at)matronics.com)] On Behalf Of Jeff Deuchar
Sent: 10 July 2016 15:44
To: aerobatic-list(at)matronics.com (aerobatic-list(at)matronics.com)
Subject: Spades

Hi All,



I figured this list might know the best...



I'm putting spades on my newly finished Wag-A-Bond (no I'm not here to debate spades, I'm an experimenter, so I experiment).



I'm wondering if anyone knows why most high wing aerobatic types only have spades on the bottom? Or more so, I want to only put spades on the top, and I'm looking for a good reason not to?

My plane is short and a spade hanging down will cut me one day, so I thought why not put it on the top? I've used Google and to date I've had no luck trying to figure out which is better? In both cases the spade should be running in smooth air (up until full deflection).



Thanks in advance,

Jeff

(Pitts, F1 Rocket, Commanche and newly finished Wag-A-Bond)

--
This message has been scanned for viruses and
dangerous content by MailScanner, and is
believed to be clean.



- The Matronics Aerobatic-List Email Forum -
 

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?Aerobatic-List

_________________
Todd McCutchan
Fast Aircraft
T-34A - N134FA
KDVT Hangar 33-13

Cell - 260.402.1740

Email: todd@fastaircraft.com
Skype: tmccutchan
Web: www.fastaircraft.com & www.flyams.com
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