McCauley Props

[fehdxl]

Travis,
You can't post pictures to this forum. However, what you can do is insert a link to a picture that is hosted/posted/loaded on another site. I use ImageShack (http://www.imageshack.ws) which is free when uploading pictures one at a time. I think it costs a penny a picture to upload multiple pictures at once...but haven't went that route.

Hope this helps.

Best,

-Jim
o=\o

[Michael White]

I have some pictures of my RV6 that has a McCauley prop from off a Mooney 201 on it, but I can't seem to get them to attach to this post. The size of the file for one picture is larger than what the browser will allow to be attached. Can anyone tell me how to go about attaching these pictures?

Travis,
Check out Doug's new article on this subject in the "Articles" section of the main page. I'd like to see your pics, too.

Best,

[tloof]

After reviewing Dougs article for posting pictures, here's pictures of my RV6 with the McCauley Prop off a Mooney 201. Is that big paddle bladed prop one MEAN looking prop, or what!!!!!

[penguin]

The Cessna "bulkhead stabiliser" that slides over the front dome of the McCauley prop is part number 0550340-1 and should be available from a Cessna parts outlet for about $10. The shims, part number 0752620-3, should aslo be available for about $4.

Pete

[robertahegy]

Good lookin' plane! Should be a Beauty when all painted up.

Roberta

[rickrv8]

Below is a photo of my McCauley prop before I swaped to Whirl Wind blades. The hub is the same as is the Cessna 210 rear bulkhead.

Rick McBride

[rickrv8]

Okay, one more I just found. This shows Van's spinner pretty well. You can see through the fiberglass where I mounted the front bulkhead. It sure sounds like the Cessna insert would work much better if it fits.

Rick McBride

[tloof]

Rick,

The Cessna front stabilizer that Penguin gave the part # for fits Van's spinner perfectly. On my installation it didn't even require any spacers at all, since the spinner fit up against it just as it mated up to the backplate (it is the only item that has ever worked on this entire installation without any modifications required!!).

By the way, the Cessna 210 backplate you used appears to mount up to the two steel plates that slide into the cutouts of the prop hub that the nuts fit into (which in turn the prop mounting studs screw into in order to create prop mounting bolts), which is exactly what I used. On my installation the custom backplate I have attaches on the backside (or engine side) of the plates, and is pulled rearward over the 1 5/8" prop spacer I had made until it touches the Lycoming ring gear in order to get a wrench on the prop bolts. On your installation it appears that the Cessna 210 backplate fits on the front side (or prop side) of the plates, and must pull forward up until it touches the prop blades in order to get a wrench on the prop bolts...is that correct? If so it must be very tight to get a wrench onto the prop bolts, but would eliminate the requirement of using a prop spacer like I have. Of course that would only work with the shorter cowling that Van's makes now & not the older long cowling like I have, but might be the way to go for those guys that have the newer kits that only come with the short cowling. From my experience with the long RV6 cowling installation it would appear that the Cessna 210 backplate might work with a short RV6 cowling without any prop spacer, and only about 1/4" removed off the front face of the cowling. This would eliminate the need for any bump having to be added to clear the alternator, but would of course require glass work to allow taking 1/4" off the front face.

The long RV6 cowling installation is alot better looking than the newer short RV6 cowling in my opinion, and it also moves the CG slightly more forward enabling a few more pounds of baggage to be carried (though it does reduce the G loading capability down to 4 1/2 to 5 G's or so...still good for any sport aerobatics). A McCauley prop installation on an RV8 may require more mods than just shortening the front face of the cowling 1/4" like an RV6 or RV7 ( I do recall that you mentioned you had to do a bunch of modifications to get your McCauley conversion to work on the RV8).

[rickrv8]

Travis,

You're correct, my backplate does mount to the two steel butterfly shaped tabs. The backplate however, mounts to the back of these tabs. There would be no way that I can think of to mount the other way around short of disassembling the prop bolts. My initial write up was incorrect when I stated the backplate sloped forward to allow easier bolt access. It does slope forward which further restricts bolt access. However, with the backplate mounted there is still room to insert a wrench. I've had the joy of puting on and taking off the prop at least a half dozen times. It makes it more of a pain to safety wire but that's as much a result of the .040 safety wire than anything else. As oppossed to removing a 1/4" from the front of the cowl, I simply installed the entire cowl that desired amount further aft. Not a good solution for a retrofit but easy enough on initial construction. The primary drawback is it does provide less room up front and will cause interference with the alternator. Another option would be to use the Whirl Wind prop and their backplate from the 200C prop. It uses the same McCauley hub and butterfly tabs. I didn't want to go this route because I didn't like the profile shape of their spinner. Choices!

Sure wish I'd know about the Cessna front plate earlier. Oh well, more fiberglass practice.

Rick McBride

[Boyd Birchler]

Be careful! The McCauley used on the Cardinal RG and the Mooney 201 can safely be used ONLY on engines with dampened/counter weighted crank shafts....