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View Full Version : PBY update Feb 10, 2008


donjiskra
02-11-2009, 12:34 PM
Update Feb 10, 2009
This model was a Scratch built. It had twin .40 size glow engines.
75" wingspan AUW approximately 6.5 pounds.

Both Turnigy 42-40A 1050KV motors have been installed.
Cowl installs next step, the former fuel tank areas each now hold the Zippy 4s2100mah lipo and an HXT 80A ESC. MAS 9x7 3 blade props. Rare earth magnets will hold the battery compartment cover in place.
I plan on using Throttle Differential Thrust instead of a water rudder.
Throttle-Rudder mix will switch off when airborn, if necessary.
Flight duration of 5 munutes, good for ROW performance and maiden flight evaluation. AUW should be under 7 pounds.
Scheduled flight date April 17th.

Alpea42
02-11-2009, 04:14 PM
Nice project Don. Did it ever fly on .40s? If so how was it?

donjiskra
02-11-2009, 08:59 PM
Yes it did fly. I saw it fly by the guy that built it, and it flew really well.
He thought it flew too fastr and was overpowered. That was three years ago. Last summer he had taken the engines out and wanted to give it away, so I accepted it as a conversion challenge. I installed the .35 size motors so will see how they work out. This has been a fun project ansd I'm looking forward to seeing it ROW and get up in the air again.
Thanks for asking,
Don