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More assembly questions & book recommendation

Hi all. Thanks for all the helpful info I've been receiving so far. Assembly of my electric powered glider is coming along nicely.

First, a few more assembly questions:

How do you guys usually fasten down the battery pack inside the fuselage? Velcro straps? Screws? I'm concerned about being able to adjust the position of the battery pack in order to adjust the center of gravity, yet want the pack to be firmly anchored once the position is decided. Additionally, it needs to be easily removable for charging (according to advice I've received earlier).

As for books:

I'm looking for recommendations on three types of books:

  1. Glider flight technique (how to fly gliders, including radio setup, etc.)

  1. Assembly techniques (methods, tips&tricks on construction, either general or specific for gliders, mounting servo's, servo linkage, wiring, etc.)

  2. Glider design (a practical book on designing your own r/c glider from scratch)

I've looked through amazon.com and found a fair number of books on the above subjects. Any firsthand recommendations would be greatly appreciated.

Regards,

MB

Reply to
MonkeyBoy
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wrap the pack in foam or whatever.End up wrapping it with masking tape real good. Decide where you want it,put a few drops of CA on the masking tape,place it where you want it and let it dry.It'll stay there for sure.

Reply to
TX_QBALL

On 5/19/2004 9:55 PM Ted shuffled out of his cave and grunted these great (and sometimes not so great) words of knowledge:

Depending on the amount of space and whether or not there is a cover over the battery box, there are 2 ways to do this.

1st way: Use 2 strips of velcro (one for the front and one for the rear of the battery pack) and secure them to the bottom of the battery box. Put your FOAM WRAPPED battery in the plane, adjust the CG, and wrap the velcro straps around the battery and to itself to secure. This is the most secure method.

2nd way: Use 2 part velcro (usually self adhesive on each side) and place 1 or 2 strips the full length of the battery. Secure the other half to the floor of the battery box. Put the battery in, adjust CG and press in place. This method is not as secure as the 1st method and I would only use it if you absolutely can not use the 1st way AND there is a SECURE cover on the battery box. If you use this method, make sure the foam padding on the pack is completely wrapped with masking tape so the velcro attached to the pack will not pull loose (or rip the foam off)

I use the method 2 all the time with my glo models and have not had a battery come loose yet, even in a rough landing. One of my planes has an 1800 mah 4 cell mounted so it is hanging down. I recently had a "rough" landing where I bent one of the landing gear. It was still in place. I normally use 1500 - 1800 mah AA 4 cell NiMH packs in my glo planes.

A lot will be determined by the weight of the pack. IMHO, if you are using a pack larger than 7 or 8 cell AA, you should use the 2 strap method (1st way) of securing the pack.

Reply to
Ted Campanelli

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