RE: Top Flite Staggerwing
Thought you all might like to see a comparison of the pnuematic Robart gear, on the left, with the Down and Locked electric conversion, on the right, together w/ all the necessary ancillaries. The Robart gear weigh 4.6oz each while the Down and Locked conversion weigh 5.4oz each; as you can see, the D&L gear are about 3/4" longer. The D&L control box is 2.5 oz and the battery to run the gear is 9oz. I don't know what all the valves, air nozzles and hoses for the pnuematics weigh, but it does look as though the D&L conversion, if run off a separate battery, may be a bit heavier than the pnuematic gear, but it's not significant. D&L is a simple drop-in; routing the lead will be a bit of a challenge, but no worse that figuring out the air line routing.
I sent the gear off to D&L on the 10th and got them back today. A good bit of time about a week was waiting for the check to clear because I chose not to use Paypal.
Let me know if you have any questions, and I'll try to answer.
Al