Mog wrote:Just a point of interest, I have been made aware that MT props can be a serious pain due to leaking. Would love to have an MT, but not at the cost and hassle I have heard about recently.

Mog, can you elaborate on what you have been made aware of a bit more with Leaks? Is there multiple cases causing issues ?

We have had an MT for 5 years with no issues. Completely happy. My brother has one for aerobatics and has only needed minor service which was completed at the nearest prop shop in short order. I feel we are at the point where general service/repair on an MT can be handled by a reputable shop no different than any other prop? Major repairs i can't comment on but i wouldn't consider a leak major unless there is an underlying major issue that has not been found.

Price 5 years ago was comparable to other manufactures from what i recall.

Apparently it’s bad enough that when you call MT about warranty they say “let me guess, your prop is leakingâ€￾. There was a service bulletin also released discussing at what point streaking on the prop makes it in airworthy. Again, this is second hand info but from a very vey reliable source.

Almost 300 hours now on my MTV-15-B/203-58. Very happy with it. No problem or complaint. My home runway is mostly gravel.

does anyone have any pireps of the 2 blade longer MT prop on a 235hp engine?

Installed one on a customer's plane (M-7-235). He reports little or no short-field performance difference from his long MacCauley. He does like the much lighter weight on the nose.

I guess I worry about longevity in the rocks. They seem to hold up OK on the cubs though.

andy,
do you recall what the weight savings was? was the removed prop a 86" mac?

UP-M5 wrote:andy,
do you recall what the weight savings was? was the removed prop a 86" mac?

Yes, it was the 86". In fact, it's the very one that's on my plane now.

Anyway, the total weight difference from the 86" Mac to the MT, including spinner change, was 9.5 pounds.

Does anyone have a good point of contact for someone who has done engineering approvals for the MTV-15 two blade prop on the Maule in the past?

I'm trying to determine the suitability of a lightly-used MTV-15D I've seen for sale.

I sent a note to MT recently asking if they were considering an STC approval in the future for Maules, and was told that "There is no plan to certify the MTV-15 propeller also on the -235 models at the moment and in the near future"

The person to talk with is...
Larry Schlasinger
Flight Resource LLC
Executive Sales and Leasing LLC
FAA DER
612 619 5782

schlasinger@earthlink.net

His email require a verification which is a pain but otherwise I have had a very good experience with him!

AJ,

Call Larry as posted above. He has been doing Field Approvals for the prop installs. His charge for the FA is $1500.

And if you pass on that MTV-15, let me know I’d be interested in it.....

What length is that MT.
For the 235hp you need at least the 83/4â€￾. ?

Thanks guys, I appreciate the info. I did get in touch with Larry, as suggested, and he's been very helpful.

To pass along what I've learned - the one I had my eye on was also the 83", but as I've just learned, the MTV-15-D is for a Continental engine. So now I'm keeping my eye out instead for a MTV-15-B/205-58, which is the one which fits the IO-540.