Below is the current parts list as of April, 2012. Often parts are on back order so I have attempted to provide substitutes–currently almost everything is on back order from Hobby King. I fear that the days of a $100 Towel are gone due to chronic back order issues but I am still working on it. There are plans afoot for a kit but not yet available.
Home page for the project that is a good starting place.
Folks have started their own build blogs. They are doing a good job of reporting on where to get gear etc. Email me (breck@brooklynaerodrome.com) if you want your blog listed here.
We are starting build sessions for folks that want some help with the build and flying.
I have provided a bunch of links to Amazon sources. I have not confirmed the vendors integrity or tried to see how much shipping is etc. Someone noted that a $3 part had $8 shipping and handling. It would be nice to have a single good vendor for the parts–I am working on that.
Transmitters/Recievers:
Servos
You will need two servos per towel. But they can break/strip so ordering a few spares is not a bad idea.
- The standard HXT900 at Hobby King for $3. Amazon Link for the same servo HexTronik HXT900 Micro Servo 9g / 1.6kg

for $7.
Speed Control/Motor combos
I prefer combo packs because you know that the motor/speed control are appropriate for each other. But you can buy them separately as well.
- This combo is my current go-to setup for $28. Has motor connectors. Get APC props. You want the 18amp speed control and 1400kv (means how many rpm you get per volt).
- This combo includes a prop for $15 but it has gone the way of the dodo. I don’t think it has been in stock for a year. Uses GWS small hole (3mm) props, not APC.
The propeller
Get at least 3. Be mindful that the prop fits the motor. The grey APC props have a bigger hole than the
GWS style props.
Motor/Speed Control Connectors
Battery
You will want at least two batteries. 6-10 minutes flight time per battery.
Any of the LiPo packs with 2 cells in parallel (2S1P), a 10c or greater rating (max discharge is 10 times the capacity of the pack) in the 1500 to 2200 mAh range.
Charging Options
There are tons of alternatives for charging. I have identified the easiest/cheapest solutions. Ping me if you need to know more.
Misc parts
You will also need
A few tools are required for a reasonably easy build. They include:
- Razor blade/razor knife
- Ruler
- Felt tipped pen
- Soldering iron
- Solder
- Needle nose pliers with wire cutter
- Soldering station helping hands
- Small philips head screw driver
- Drill with various small bits (1/8 inch, 1/16 inch)