VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.






VAF on Twitter:
@VansAirForceNet

  #1  
Old 12-01-2022, 07:20 AM
Latech15 Latech15 is offline
 
Join Date: Apr 2018
Location: louisiana
Posts: 224
Default Which cherrymax rivets???

I have a couple of rivets in the bottom skin on the fuse of my RV-10 that I canít get to with a bucking bar. The plans call for a ad426 countersunk 3-3.5 solid rivet. What would be the appropriate size cherry max rivet to use in its place?

Iíve read a lot and searched a lot, and I canít find an aluminum rivet, cs head, in 3/32 dia. Should I upsize the hole and dimple to 1/8 or use a steel rivet? Or am I just not finding what Iím looking for?
Reply With Quote
  #2  
Old 12-01-2022, 08:21 AM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 10,086
Default

Vans approves the use of an MK319-BS blind rivet to be used in place of a 426AD rivet in the length that you mentioned. It does require enlarging the hole diameter to #34 but the rivet head fits the standard dimple pretty well. You can vary slightly machine counter sink and the deadbolt to get a better fit if you desire.
__________________
Opinions, information, and comments, are my own unless stated otherwise.
You are personally responsible for determining the suitability of any tips,
ideas, etc. obtained from any post I have made in this forum.


Scott McDaniels
Hubbard, Oregon
Formerly of Van's Aircraft Engineering Prototype Shop
FAA/DAR, EAA Technical Councelor
RV-6A (aka "Junkyard Special ")
Reply With Quote
  #3  
Old 12-01-2022, 01:32 PM
Jonnyb's Avatar
Jonnyb Jonnyb is offline
 
Join Date: Jan 2013
Location: UK
Posts: 162
Default

Not withstanding what Scott has said, I have used these with good results.
https://www.aircraftspruce.com/catal...erryRivets.php
__________________
RV-8
Empennage done
Wings in progress
Fuselage ordered
Reply With Quote
  #4  
Old 12-01-2022, 06:28 PM
planenutz planenutz is offline
 
Join Date: Jan 2005
Location: Arrowtown, New Zealand
Posts: 109
Default

I'm pretty certain you won't find any 3/32" Cherrymax rivets anywhere because as far as I know they don't make them that small. You will have no choice but to go to the 1/8" dia rivets if you want to use Cherrymax (CR3212).

In terms of grip length, if you don't have one of their grip gauges then its a bit of a guess however if you were looking to use a "3-3.5" solid then I'm guessing you're only going through a couple of skins in which case you would most likely need a 4-2 or 4-3 Cherrymax.

Make sure you obtain the correct diameter because Cherrymax also produce an oversize version of the standard 1/8" rivet (CR3242) which is slightly larger and its very easy to confuse the two. The larger version requires a 9/64" drill bit from memory but I stand to be corrected on that.
__________________
Mike

Licensed Aircraft Mechanical Engineer
PPL-A
RV-6, ZK-XTC - Superior IO-360, Sensenich FP, GRT EFIS, Surefly SIM
Bolkow 209-160RV, ZK-MON - IO-320, MT Prop, Retract Nosewheel, Folding Wings


Trustee and Technical Councillor for the MBSAT RV-12 builds in Whitianga
Reply With Quote
  #5  
Old 12-01-2022, 07:00 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,868
Default Cherrymax

Vans sells them
ccr-264ss-3-3
__________________
Larry Larson
Estes Park, CO
E-mail: wirejock at yahoo dot com
Builder Blog: http://wirejockrv7a.blogspot.com
Donated 12/2022, plus a little extra.
RV-7A #73391, N511RV reserved
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
  #6  
Old 12-01-2022, 07:10 PM
Walt's Avatar
Walt Walt is offline
 
Join Date: Aug 2005
Location: Dallas/Ft Worth, TX
Posts: 6,997
Default

Quote:
Originally Posted by wirejock View Post
Vans sells them
ccr-264ss-3-3
Those are cherry, not cherrymax
__________________
Walt Aronow, DFW, TX (52F)

EXP Aircraft Services LLC
Specializing in RV Condition Inspections, Maintenance, Avionics Upgrades
Dynamic Prop Balancing, Pitot-Static Altmeter/Transponder Certification
FAA Certified Repair Station, AP/IA/FCC GROL, EAA Technical Counselor
Authorized Garmin G3X Dealer/Installer
RV7A built 2004, 2000+ hrs, New Titan IO-370, Bendix Mags, MTV-9 prop
Website: ExpAircraft.com, Email: walt@expaircraft.com, Cell: 972-746-5154
Reply With Quote
  #7  
Old 12-01-2022, 07:42 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,868
Default Cherry

Quote:
Originally Posted by Walt View Post
Those are cherry, not cherrymax
My mistake. I only used two of the ones Vans sent in the nutplates for the nose pant. I assumed they were Cherrymax.
__________________
Larry Larson
Estes Park, CO
E-mail: wirejock at yahoo dot com
Builder Blog: http://wirejockrv7a.blogspot.com
Donated 12/2022, plus a little extra.
RV-7A #73391, N511RV reserved
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.
Reply With Quote
  #8  
Old 12-02-2022, 10:48 AM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 10,086
Default

Quote:
Originally Posted by wirejock View Post
My mistake. I only used two of the ones Vans sent in the nutplates for the nose pant. I assumed they were Cherrymax.
Theyíre not, and they arenít an equivalent strength replacement for an AN426AD3.
__________________
Opinions, information, and comments, are my own unless stated otherwise.
You are personally responsible for determining the suitability of any tips,
ideas, etc. obtained from any post I have made in this forum.


Scott McDaniels
Hubbard, Oregon
Formerly of Van's Aircraft Engineering Prototype Shop
FAA/DAR, EAA Technical Councelor
RV-6A (aka "Junkyard Special ")
Reply With Quote
  #9  
Old 12-02-2022, 09:41 PM
wirejock's Avatar
wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 5,868
Default Cherry

Quote:
Originally Posted by rvbuilder2002 View Post
They’re not, and they aren’t an equivalent strength replacement for an AN426AD3.
I understand.
I used two of them from my kit Vans sent me in the Elastomer Nose Gear Kit, exactly where the plans said to use them. Vans called for four holding the nutplates for the nose gear fairing. I used two because I could drive the other two AN426AD3.

Quote:
Originally Posted by wirejock View Post
My mistake. I only used two of the ones Vans sent in the nutplates for the nose pant. I assumed they were Cherrymax.
Vans should consider editing the Web Store search algorithm. A search for "CherryMax Rivets" shows them. Maybe post a disclaimer so builders don't use them in the wrong place.
My apologies for the suggestion. Please delete my post.
__________________
Larry Larson
Estes Park, CO
E-mail: wirejock at yahoo dot com
Builder Blog: http://wirejockrv7a.blogspot.com
Donated 12/2022, plus a little extra.
RV-7A #73391, N511RV reserved
Disclaimer
I cannot be, nor will I be, held responsible if you try to do the same things I do and it does not work and/or causes you loss, injury, or even death in the process.

Last edited by wirejock : 12-02-2022 at 09:48 PM.
Reply With Quote
  #10  
Old 12-02-2022, 09:58 PM
Mikeyb Mikeyb is online now
 
Join Date: Nov 2018
Location: Pasadena ca
Posts: 240
Default

Cherry Max 3214-4-x rivets. They have the same head as an AN426 AD3 but an 1/8Ē diameter body. Like an NAS 1097 oops rivet. You have to specify the grip length. Available from
https://www.gen-aircraft-hardware.com.
__________________
Mike
N36MB
SN 83764
IO360-M1B
Hartzell Composite CS
Phase 1 complete 10/29/22
KAJO
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 01:34 PM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.