Need help with rotor tach

Brent Drake

Gyroplane Instructor
Joined
Jun 15, 2004
Messages
2,063
Location
Shelbyville, Indiana
Aircraft
Pipers/Cessna's/gyro's
Total Flight Time
3,000+
Guys, My current rotor ring gear has about 133 teeth on it. I counted it twice. first time was 134. Second time was 132. My new ring gear has 108 teek on it. I'm sure my tach will be off. Its a Dominator rotor tach I'm told. What kind of setting do I change for this mod. I'm not sure how to change the dip switches.
Thanks for you help
Brent
 

bbushong

Newbie
Joined
Jul 5, 2006
Messages
24
Location
Daleville, Alabama
Aircraft
Fly Boeing CH-47F
Total Flight Time
4500
Brent, is that the digital "counter" that came with the Twinstarr (digital, about 3/4" high numbers)? If it is, I have the same one, and have the instructions, too. I can scan and email them to you later this evening.
 

Rick Whittridge

Gold Member
Joined
Dec 30, 2003
Messages
1,774
Location
Ohio
Aircraft
Bensen B8-M / Twinstarr
Brent, Do a search on here for red lion & you will see all the info I got when I was having trouble. There is a DT-7 & DT-8 gauge & have different amount of switches.Al Hammer helped out with the correct switch settings. Red Lion has a tech # also that they will tell you the right combo of switch settings.
 

bones

Gold Member
Joined
Jul 28, 2004
Messages
1,278
Location
Chtrs Twrs Australia
Aircraft
a/c
Total Flight Time
cant remember, didnt have log books before, but since over 3000
Guys, My current rotor ring gear has about 133 teeth on it. I counted it twice. first time was 134. Second time was 132.
Brent
Ummm im seeing a bit of your problem rigt there in the opening line, you counted it twice and went in the middle of the 2 figures,:noidea: :flame: have fun working the other numbers out then :first: :angel:
 
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