Last Updated : 14 February, 2007
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The following question came from Jim Davis


Recomended servo size for the Monarch D?

I have searched and searched but I can't seem to find the recomended servo size for the Monarch D. I am going to order the glider and want to have the correct size eqpt.

From : Joe Hahn

Thanks Jim--sounds like something we need to add to our website!!

The D is actually fairly flexible on equipment options. For minimum weight use a 110mah pack, the new S-80 or Cirrus CS 20 BB servos(.33ozs.), and one of the currently available micro receivers(Hitec 535 less case, one of the DAD's, etc). The Hitec HS-60 is also a good choice, just SLIGHTLY heavier. The fuse is actually large enough for the "mini"-sized servos, 270mah pack, and many of the standard size receivers. Although there is room for this equipment, the extra weight is a definite disadvantage in light conditions(it increases rate of sink significantly), and therefore defeats one of the main design goals of the ship.

For a really light ship, make a 4 cell pack from the cells of an Eveready 9 volt rechargeable battery(gives about 35 usable minutes of flying time, around 80mah), measure the length of one of the wire pushrods in your ship and cut that much length off the receiver antenna and solder the end of the antenna near the servo end of the pushrod. Saves a very significant amount of weight in the tailboom which allows the CG to come out very nicely with the small pack in the nose, and the S-80 servos "stacked" on top of each other just behind the pack. It is possible to have a D-lite come out less than 9.5 ounces using these procedures(and a standard D less than 10.5).

It is the only way I set up my ships. Flew my ship set up this way at the Nats this year. I flew with groups of more than 20 ships in the air with me at the same time without the slightest hint of a range or interference problem--if THAT isn't a test, I don't know what is!!!(you can probably tell that I'm sold on this trick!).

If you have any other questions, let us know, and THANKS for the order---GREAT choice!!!

Joe Hahn
DJ Aerotech



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