Twin Throttle linkage?  
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Twin Throttle linkage? - 8/10/2003 9:15:44 AM   
bwillhite



Posts: 243
Joined: 1/9/2002
From: Pittsburg, KS, USA
Status: offline 		I quick and easy question for all you twin experts!

I am building my first twin, the Great Planes Profile 38.

Should I use the included throttle linkage, both throttles to one servo. Looks kind of clumsy. Or should I use micro servos in the booms to control the throttles?

Thanks!

bwillhite

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They all hit the ground sometime!
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Twin Throttle linkage? - 8/10/2003 9:57:55 AM   
William Robison



Posts: 20269
Joined: 11/10/2002
From: Mary Esther, Florida, FL, USA
Status: offline 		bwillhite:

The single servo can be made to work, but if you have room and the capability to carry the weight, (the profile P-38 has both) two servos are much easier to set up. Only disadvantage otherwise is the doubled expense for throttle servos.

Bill.

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Real Airplanes have Two Engines
AMA 25139 - More than 40 years.

(in reply to bwillhite)
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Twin Throttle linkage? - 8/10/2003 10:17:24 AM   
bwillhite



Posts: 243
Joined: 1/9/2002
From: Pittsburg, KS, USA
Status: offline 		Thanks for the reply. I have a couple HiTec HS-81's laying around, should be perfect for this job! It show be a lot easier than messing around with the link GP has designed!

Later

bwillhite

_____________________________

They all hit the ground sometime!

(in reply to bwillhite)
       Post #: 3

Twin Servos - 8/10/2003 9:03:20 PM   
twinman



Posts: 1628
Joined: 1/19/2002
From: Katy, TX, USA
Status: offline 		I whole heartedly agree with Bill. Use two servos. If you have a computer radio, there are very good reasons, in addition to less play in the linkage, such as ease of set up, if the servos are on separate channels and mixed together. With separate channels the top and low end can be matched easily. Now, as you are building a fun fly......consider mixing the throttle servos to the rudders......ABOVE 50% throttle for safety. Imagine knife edge and flat spins with differential thrust!!!
Good Luck,

(in reply to bwillhite)
       Post #: 4

Twin Throttle linkage? - 8/10/2003 9:10:30 PM   
bwillhite



Posts: 243
Joined: 1/9/2002
From: Pittsburg, KS, USA
Status: offline 		Great idea! I will wait and see how my MDS 18's run first!

I like MDS engines, but sometimes you get a lemon!

Got the tail feathers framed last night, need to start the wing today...also need to finish Taco II and foam EP mini-wing!

To many projects!

later

bwillhite

_____________________________

They all hit the ground sometime!

(in reply to bwillhite)
       Post #: 5

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