jtager

By way of a further update: Yesterday, I spoke with someone at McFarlane Aviation Products, and I understand that they’re expecting imminent PMA approval for a retrofit vernier cable for the ‘J’, applicable to aircraft serial numbers 24-0378 through 24-3431 (presumably, excluding only the early models with the pedestal / lever arrangement rather than plunger controls). In fitting the replacement, I gather that the existing microswitch that triggers the low-throttle gear warning mechanism must be transferred to a cutout designed to accommodate it, in the new product. As Art Vandelay pointed out above, it genuinely seems to be a best-of-both-worlds solution, since there’s no button. Thanks again for all the feedback, above.

Thanks again. I’ll be in touch with McFarlane to see if they can do the same for me.

Thanks so much for the prompt response. So, I infer that you sent your old cable to McFarlane and they returned a version of their product that still provides you with the requisite gear warning activation? Am I correct? If so, what sort of paperwork is involved? What model year is your J?

I know that a version of this question has been posted before, but there wasn’t a definitive, usable response at the time. My inquiry is as follows: is it feasible and practical to fit a vernier throttle to an M20J, and if so, how? I discussed this with the engineer that looks after my (South Africa-based) J, and I understand from his response that simple fitment would not be a problem, but that given the J uses the existing throttle cable / mechanism to activate the gear warning system (as opposed to on the Ovation and its vernier throttle for example, where the gear warning activation mechanism is triggered elsewhere on the Continental motor), one would need a workaround of sorts to create the warning mechanism on the J. I’d rather avoid a custom field modification, so if there’s a McFarlane (or other) product that would legally do the job ‘off-the-shelf’ and unmodified, I’m keen to know about it. This is something I’d asked about and given up on a while back, but the impetus for my question is that I found a photograph online of a new panel in a ‘79 J (N3774H), boasting a G500TXi display and clearly sporting a vernier throttle. If the owner or operator (or someone else in the know) of the aforementioned J sees this post, I’d be delighted to hear from you. Any other usable advice would also be greatly appreciated.

Thanks so much for the prompt and helpful feedback. My J’s panel definitely does have a ‘decorative’ overlay, and it’s that I’m referring to. I’ll see what I can find in the downloads section.

I’m planning a major revamp of my 201’s panel, and am in search of a .dxf (or other commonly-used CAD format) file containing dimensions for the panel’s outline, for the purposes of commissioning the machining of a new metal overlay. Looking forward to hearing from anyone that may be able to assist. Many thanks, Jon.