ZDZ & RCS Support Direct support from Mike Dooley of RC Showcase for all your ZDZ and RCS Engine questions.

Help with prop selection!

Old 11-07-2006, 10:12 PM
Thread Starter
Bass1's Avatar
Join Date: Dec 2002
Location: Va.Beach, VA
Posts: 2,461
My Gallery
My Models
My Feedback
Default Help with prop selection!

Hi Mike, I have a sweet running ZDZ 40 rv that is currently on this airplane. She weighs just under 15 lbs. I am using a 20/8 NX prop and I am totally satisfied with the airplane/engine performance. What I am not happy about is the need to re-tighten the prop bolts every few flights. (wooden prop hub compressing). I have an extremely delicate fiberglass spinner that can't tolerate too many more removals so I am wanting to install a Mejzlik prop thinking that the carbon fiber hub won't compress. Right now I'm turning anywhere from 7150 to 7300 rpm static with the NX prop and a Bisson side mount muffler. Would a Mejzlik 20/8 give the same performance or should I try a 21/8 Mejzlik?? Thanks
Attached Thumbnails
Click image for larger version

Name:	Ay75570.jpg
Views:	7
Size:	86.3 KB
ID:	556156  
Bass1 is offline  
Reply With Quote
Old 11-08-2006, 11:03 AM
Mike Dooley/RCS
Join Date: Jul 2002
Location: MD
Posts: 515
My Gallery
My Models
My Feedback
Default RE: Help with prop selection!

Go with the 21x8 Mejzlik, awesome. I would also recommend cutting the crimps off of the muffler downtubes to increase performance a bit more as well.
Mike Dooley/RCS is offline  
Reply With Quote

Thread Tools
Search this Thread
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -8. The time now is 03:30 PM.