BIPE Setup

[Doozer]

Just looking for opinions on setting up the ailerons. My Pitts has two servos on each wing, and I've got a couple of options. I can use two Y harnesses, one in the aileron port and the other in Aux1. Then I'd have to set up the servos individually, or I can use a Matchbox system like this one:
www.amainhobbies.com/product_info.php/cPath/61_100/products_id/18090/n/JR-Matchbox-Servo-Matching-Power-System

Obviously one is more expensive than the other, but using two Y's also requires a bit more time setting up your throws in your radio... for which I have zero experience. So I'm wondering if anyone's had experience with either system.

Also, should I have a separate battery for the ignition? Are there any other toys that are I should know about?

[akphill]

Futaba does that with there program link
I use y harnesses myself
But my planes are not as large as yours

[19000rpm]

I'm not familiar with the matchbox system. Kent may know.

I think I'd opt for the Y harness. It will give you throw fine tuning through your radio. What those throws might be for your set up; I have no clue.

[akent]

I have never run anything like the Matchbox system.

If you have the ports on the receiver, then I highly recommend programming the ailerons in the radio individually.

If you only have room in the receiver for two aileron servos, then I would use a Y with the two extra servos.

I witnessed the maiden of a Pitts Bulldog today! It is larger with a 55CC motor. What a beautifully flying plane!

I want one, either like that one or like yours, Doozer!! Gas rules!
Kent

[Doozer]

the engine comes tomorrow, but I have to pretend I don't know what it is until Christmas I still have some of the electronics to work out... rx, ignition, radio set up... throttle servo placement, ect. I'm looking for some guidance there. Like, should I have a separate battery for the ignition? Or should I get one of these:
www.troybuiltmodels.com/items/WRCIBEFV2.html
I'm eliminating the battery, but it cost more than the battery to eliminate it I guess I'll need to see where I'm at CG wise once I get the engine installed.

As far as programming the ailerons in the radio, I'm going to have to take the X9303 manual to the throne room and do some lurnin'.

[Doozer]

Dec 11, 2011 19:48:40 GMT -6 akent said:

Gas rules!
Kent

If you think about it... it just makes sense. Electrics just don't stay up in the air long enough for me. Then there's the charging because batteries need to be watched. Not forgetting to mention that when I crash, so does my expensive battery.

Electrics and Nitros make better power, but I'm not in it for that. I'll leave that to the 3D guys. I am going to fly EF1, but I think I'll switch up to QM40's if I really end up liking it.

Anyway, still looking for advice on setting up the Bipe. I have zero experience with electronic ignitions and I don't want to muck it up. I've been trying to find information on this... the Manual isn't too helpful.

[akent]

I meant that gas rules for the big stuff!

I'll be electric only with everything smaller than something like your bipe!!

I still don't have a gasser, but I sure want one!
========
I have worked with a fellow in the Austin club who flies big gassers. He has most all sizes, up to 170cc twins.

He had been mostly running a separate Lipo with a BEC for the ignition. He has burned up more than a few BEC's with this. These were all switching BEC's.
My theory is that the harmonics from the ignition system causes the BEC to oscillate and burn up.

I recommended to him and he is now running two Schottky diodes in series with a LIFE battery. This gives you right around 6v with a full charge. Once the battery is run for a few minutes, this drops from there. These diodes have a 14 amp rating with a 550mv drop.
It turns out that the DLE's do work with >6v on the ignition. They just don't like a fully charged Lipo voltage! That can fry them.

He is converting all of his gassers to use this setup.

Most of the folks around here run a separate switch on the plane for the ignition setup.
Kent

[Doozer]

I've got this:
www.horizonhobby.com/products/receiver-4-8v-pack-4500mah-nimh-sanyo-JRPB5004