If it were me, I'd find some sturdy appropriate fabric and use contact cement and do repair on the underside.  I'm always leery of pressure sensitive adhesives in a harsh environment....they break down after a few years.  My mom used to use those iron-on patches on my jeans when I was a kid, and they failed after a few times in the washing machine.  But they just might work if you do it on the underside, protected from UV and heat/cold cycles, and of course you don't put it in washing machine.   Yes, use something durable so you don't have to do-over.

    On Friday, June 9, 2023 at 12:09:39 PM PDT, Jim Felder <jim.felder@gmail.com> wrote:  
 
 Sewing is no problem for me. Fitting that gigantic thing under the sewing
machine foot might be a problem. The iron on stuff is sounding good.

Jim

On Fri, Jun 9, 2023 at 1:07 PM Adam Grove <roverini@gmail.com> wrote:

> I think an iron on patch used for repairing worn out knees on jeans etc
> would work nicely and not involve any sewing.
>
> On Thu, Jun 8, 2023 at 9:28 PM Dick Wong <sailingfc@dslextreme.com> wrote:
>
> > You can use 'hemming tape' to bond the patch around the hole.
> >
> > Is there a spare swatch of material 'inside' the cover somewhere?
> >
> > Good luck.
> >
> > -Dick W-
> >
> > ----- Original Message -----
> > From: "James Felder" <jim.felder@GMAIL.COM>
> > To: "vanagon@GERRY.VANAGON.COM" <vanagon@GERRY.VANAGON.COM>
> > Sent: Thursday, June 8, 2023 7:42:17 PM
> > Subject: How to patch van cover!
> >
> > I’ve had a very nice bus depot van cover for several years now. I cut a
> > hole
> > I’m it to fit over the stub aerial. I wish I hadn’t. The hole has torn
> and
> > widened over time. I’ve ordered an aerial that retracts flush with the
> car
> > body. I want to patch the hole where the aerial
> > Came through the cover. Any recommendations as to what to patch it with?
> > Anyone have a piece of the original material?
> >
> > Jim
> >
> >
> > Sent from my iPhone
> >
>