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09-19-2015, 11:04 PM
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Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,026
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Quote:
Originally Posted by magiccarpet
I can not say how the whacky hammer method would have worked out, but I can say that I am glad to have used the dies for it.
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The wacky hammer method actually works quite well as proven by the 9000+ RV's that have been completed and flown....
Up until only recently, if you were building an RV that required curved longeron angles (pretty much all of them until the RV-14), it was the only way.
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Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.
Scott McDaniels
Van's Aircraft Engineering Prototype Shop Manager
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
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12-21-2015, 06:09 PM
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Join Date: Dec 2011
Location: Sacramento
Posts: 64
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Borrow Your Longeron Dies?
Does anyone have the RV-12 Longeron dies I could borrow/rent? I'll return them in good condition quickly, within 5 - 10 days or so, cover your shipping, and include a little extra $ as a way of saying "thanks!"
Appreciate it.
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12-23-2015, 09:15 PM
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Join Date: Jul 2010
Location: SF Bay Area
Posts: 247
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Kevin,
I'm in KCCR - you can drive down or perhaps I could fly to KSAC (was there on Monday). Send me a PM and let me know if you need them.
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http://jimsrv.blogspot.com
PP - ASEL
Instrument Rating
A&P/IA Rotax iRMT 9 Series Maintenance
EAA Technical Counselor
RV12 Flying.
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12-23-2015, 11:18 PM
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Join Date: Dec 2011
Location: Georgetown, Texas
Posts: 184
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Vans longerons are designed to weed out the sissies
All it took for me was a set of dies, an eight inch chinese vise, a four pond sledge, a 12 inch crescent wrench and a ten ton hydraulic press. Piece o cake!
...and an unnecessarily difficult step in an otherwise fine kit design.
Universally hated, this critical and difficult step should have become factory-formed long ago. Seems to be part of the smug cultural attitude exhibited in other areas - like failure-prone nose struts, and main gear shimmy on tail draggers. I'm fairly new to the community, so maybe I just don't get it about this stuff....or maybe I'm just a sissy!
__________________
Dick Gossen
gossend@gmail.com
Flying: EAB RV-12 with Aeromomentum AM15-HP engine 
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12-24-2015, 03:35 AM
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Join Date: Dec 2011
Location: Sacramento
Posts: 64
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Quote:
Originally Posted by waterboy2110
Kevin,
I'm in KCCR - you can drive down or perhaps I could fly to KSAC (was there on Monday). Send me a PM and let me know if you need them.
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PM sent. Thank you! |
12-24-2015, 04:50 AM
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Join Date: Mar 2007
Location: 45G, Brighton, MI
Posts: 1,867
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Quote:
Originally Posted by Brantel
A vise, dead-blow hammer and a crescent wrench does wonders with longeron forming.
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You don't even need the hammer. Clamp both longerons back-to-back along the horizontal faces, lay 'em in the vise every few inches (no need to tighten the vise), and lean on 'em. The curves in mine came out within the width of the template line, and were identical mirror images of each other.
http://mykitlog.com/users/display_lo...186428&row=104
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Miles (VAF# 1238, Paid up as of 2018)
RV-7 TU 904KM (reserved)
Wings Fitted and Finish Kit on site
Construction Log
Picasa: Empennage Album, Wings Album, Fuselage Album
1955 Cessna 170B flying since 1982
'To get something you never had, you have to do something you never did.' -Unk.
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