Our Bomb Drop is designed to be used in conjunction with the Servoless Payload Release (or SPR hereafter) made by E-flite. Although some of the features of this device are designed specifically to be historically correct for the B-17 Flying Fortress (like the LEDs), it can be used in any plane that has detachable bombs, or any other type of releasable payload. It allows you to connect up to four SPRs together and control them independently from a single receiver channel. There are four different release modes that allow the bombs to be released in four different patterns, as indicated in the Product Details section at right. In addition, the Bomb Drop includes a function to open the bomb-bay doors independently of the release of the bombs, and controls two LEDs, one red and one white, to indicate the bomb-bay door positions and the pickling of bombs. The Bomb Drop plugs into a single open channel on the receiver, and the SPRs all connect to the Bomb Drop’s main circuit board.
Note: This device is to be used in conjunction with the Servoless Payload Release (sold by eFlight) or a similar product. It can also be used to control standard servos. It does not include the SPRs or any other servos or devices to release the payloads.
DOWNLOAD: Bomb Drop Manual
Bomb Drop
The four modes of release are selected using the red 2-position switch located on the main circuit board as follows:
Switches are “Off” when in the down position.
- Both switches “OFF”- All four bombs are released at once, with a 1-second delay between each release.
- Switch #1 “ON” – Each bomb will be released with a single move of the Tx switch. The Tx switch must be returned to the center position before the next bomb can be released.
- Switch #2 “ON” – Bombs will be released in pairs, 1 & 2 first, followed by 3 and 4. The Tx switch must be returned to the center position before the next pair is released.
- Both switches “ON” – All four bombs will be released at once, with no delays between them.
As is scale on the B-17, the White LED comes on any time the bomb bay doors are open, and the Red LED comes on to indicate that the bombs have been pickled.
Weight: 14 grams
