Espritmodel.com Telemetry Radio
Reply
Thread Tools
This thread is privately moderated by fly time, who may elect to delete unwanted replies.
Old Oct 20, 2008, 11:58 AM
Electric flyer
fly time's Avatar
Renton, WA, US
Joined Oct 2007
1,291 Posts
Discussion
Sea Fury prop testing

I flew the Sea Fury some more yesterday, this time with a new Mystery 3S 2200mAh 25c battery. Big difference over the 15c batteries I had been using before! The uplines were long and fast, though straight up unlimited vertical is not possible with this setup.

The big VarioProp 5-blader needs a fair amount of power, ideally 250-300 watts. The Himax 2025-4200 is rated for about 200, but it can put out a little more than that with proper cooling. With the 25c battery, I'm probably running at arounf 225 watts at WOT, but that is just a guess. I would put it on the meter to see for sure, but on about the 4th landing the prop struck the pavement and one of the blades snapped off. I will need to order some new blades because I don't have any spares.

After breaking the vario, I decided to fly it with the FSK/Manzano Laser Works prop (5 FSK 9x7 blades from Hobby Lobby installed in a plywood hub cut by Charlie Manzano). This is the 5 bladed prop that most guys are using on their Sea Furies. I had bought this prop before I stumbled across the VarioProp but had never flown with it. It works really nicely, and makes a little more noise than the VarioProp when you load it up. I would say the Vario is better though, as it has more thrust. The FSK blades are really soft, and they bend quite a bit under load. On the positive side, they are hard to break.

After flying with it for a few minutes, the prop shaft collet gave loose and the prop flew off with the plane about 40' over my head It was already a little tail heavy as the plane was balanced for the heavier VarioProp, and now with no prop at all it was definately not gliding well. I circled once and dropped the gear, then lined it up over the big asphalt parking lot and mushed it down to a hard 3 point landing. No damage I must say, I have been very impressed with the retractable gear that E-Flite includes with this model. Very sturdy!
fly time is offline Find More Posts by fly time
Reply With Quote
Sign up now
to remove ads between posts
Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Balsacraft Sea Fury and 05 Astro brushless and superbox Joe Elston Electric Plane Talk 11 Feb 09, 2009 06:42 PM
Video Thunder Tiger Sea Fury with 5-bladed prop! JetMang Electric Plane Talk 10 Sep 20, 2008 02:55 PM
Five blade prop-i.e. Sea Fury peterpont Electric Plane Talk 0 Dec 05, 2003 10:55 PM
Sea Fury 5 blade prop peterpont Scale Fuel Planes 0 Dec 05, 2003 10:43 PM
Sea Fury Dihedral Gordon Scale Kit/Scratch Built 2 May 10, 2001 12:33 AM