I'm in the process of rebuilding a used IMF mast.  I picked it up recently for a long song.
The used one I have has no Halyards at all, internal or external. I also bought a used Doyle UPS so I need at least one halyard and the topping lift
I will need to replace the masthead or drill new holes and add the requisite sheaves.
In the meantime I am using the Continental Rig I always had. Ric
Dadventure


Richard F. Stott, AIA, LEED AP
ric at stottarchitecture.com
O -631-283-1777
C- 516-965-3164

> On Jul 6, 2023, at 4:26 PM, Peter Nyberg <peter at sunnybeeches.com> wrote:
> 
> Hank,
> 
> I have a standard IMF mast, which can accommodate two halyards.  When my boat came to me recycled by GB, the port sheaves were being used for the mainsail boom topping lift, and the starboard were empty.  When I added a Doyle UPS (which I believe is similar to a Gennaker) a few years ago, I just made use of the empty sheaves to add a halyard for it.  
> 
> But, if you had empty sheaves, you probably wouldn't be asking the question.  If both port and starboard sheaves are already being used, what are they being used for?
> 
> Peter Nyberg
> Coventry, CT
> s/v Silverheels (1988/2016)
> 
>> On 2023-07-06, at 12:19:42 EDT, hankstein at aol.com wrote:
>> 
>> I would like to add a halyard for a Gennaker.   I would appreciate 
>> hearing from someone who has added a halyard as to how it was done. 
>> thanks ..
>> Hank Stein
>> R-22  1993  #113
>> 
>