cabpond

I have been using a 15 X 8 Zinger wood prop on my OS91 FX with good success, except on landings. If it noses over, it breaks or nicks the prop. Would a Dynathrust 15 X 8 prop be too much for this engine ? or would a smaller pitch or diameter be advisable. The reason I am going with a Dynathrust is that it is more durable, being a nylon-fiberglass prop and would not break as easily on a nose-over landing like a wood prop would. I am using their 18 X 10 prop on my OS BGX 3500 with good success, does not break or splinter on any nose-over landing.

Thanks in advance-Cary

SMALLFLY-

My Feedback: (19)

Please do not buy a dyna thrust for a 91fx. I bought one and the first time I throttled up it snapped at the root and tore the firewall out of my cap. I would suggest a MA 15x6 or better yet a bolly clubman 14.5 x 6 or 8
I used a MA 14 x8 scimitar for a while on mine and liked it. If you ever get over to evansville IN send me a note and Ill give you a used MA NY/fiber scimitar to try (14 x 8)

cabpond

Smallfry.

I fly at Vincennes In. at O'Neal airport when I am over to visit the In-Laws . I have been over by your airfield when I go to Evansville, but cannot find out how to get to the airfield from the Interstate highway. How do you get to the flying field from the interstate highway ? can you give me driving directions please. Your field looks like a nice place to fly. I have tried the access highways, but to no success. Thanks for your advice on the Dynathrust propellers. I'll stay away from them on the .91

Regards, Cary

GalenB

My Feedback: (18)

I just put an APC 13X8 on my 91FX. RPMs are up to 11,000 and was able to turn the mixture in a full turn with no increase in head temp. So far my engine seems to like this prop a lot and the extra ground clearance is a nice bonus. Since the manual for the 91FX was printed OS has started recommending smaller 13" props...

Cheers!

Galen

MinnFlyer

My Feedback: (4)

Graupner props are hard to find, but I won't use anything else on my 4 strokes. They just seem to pull like crazy. As for my 91 Surpass, I use a Graupner 14x8

I just did a search for the helluvit, and found out that Hobby Lobby now carries Graupner. The link is:

http://www.hobby-lobby.com/grprop.htm

MinnFlyer

My Feedback: (4)

I just realized you were talking about 91 2-strokes...

In the words of Emily Littella...

Nevermind

SMALLFLY-

My Feedback: (19)

sent you an e mail with directions also
http://www.rc-tech.net/~evv/evvstash/map/map.jpg