SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Jan 05, 2014, 02:27 PM
Common Sense Support Crew
Rensselaer, IN USA
Joined May 2006
169 Posts
Discussion
Cleveland Models Kit 77.25" ws B-17G 1/16 scale

A friend of my son's and I are starting work on a Cleveland Models B-17G kit. Wingspan 77.25" all up weight without motors/electronics/servos/batteries should be around 6# when sheeted. Was designed for 4 .19's so thinking we need to go with around 1100-1400 watts total power turning 9050 three bladed props (CW/CCW) and running 1 battery for 2 motors and separate battery for servos/receiver. Plan on controls for: Rudder, Elevator, Flaps, Ailerons, Retracts and if I can figure out how to do it Bomb-bay doors. Input on power requirements welcomed as we have only built things that have been designed for electric and nothing this big.

Randy
reblacklaf is offline Find More Posts by reblacklaf
Reply With Quote
Sign up now
to remove ads between posts
Old Jan 14, 2014, 12:34 AM
Registered User
E-Challenged's Avatar
United States, CA, Garden Grove
Joined Oct 2000
11,882 Posts
This kit was probably intended for control line flying or display. Adding weight of RC stuff, retracts, etc., plus sheeting to cover stringers, etc., may make the model too heavy and stall- prone to fly in a slow bomber-like manner. Take a look at Pat Tritle's B-17 and some of the similar size foamy B-17's from Hobby King, etc. You may want to build light for flyability vs heavier for scale appearance
E-Challenged is offline Find More Posts by E-Challenged
Reply With Quote
Old Jan 15, 2014, 09:44 AM
Registered User
Doug Bartley's Avatar
Canada, ON, Owen Sound
Joined Oct 2008
2,780 Posts
Most motors designated as 480 size with a kv around 900 would spin the 3 blader you mentioned and make 250-300 watts each on 3s.
I'd use 40a esc's just to have a good safety margin. 4000/3s/30c batteries should deliver the amps required. If you have room, 5000mah wouldn't hurt.
I highly recommend Turnigy Plush esc's with their programming card. I also like the new SK motor series. fwiw Doug B
Doug Bartley is offline Find More Posts by Doug Bartley
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Sold Dynaflite 1/4 scale "Fly Baby" 84" ws (kit) OriginalBilly Aircraft - Fuel - Airplanes (FS/W) 0 Dec 01, 2013 10:40 PM
Sold NIB T&J Models 1/8th Scale 45" WACO YMF-5 Short Kit, including Flying Models Plans ClipperBill Aircraft - Electric - Airplanes (FS/W) 2 Nov 15, 2013 03:11 PM
Sold Big 1/5 Scale Pica P-40 Kit Box is Still Sealed and 1/5 scale cockpit kit CADILLAC200 Aircraft - Fuel - Airplanes (FS/W) 1 Oct 06, 2013 09:29 PM
Sold Static Kit: Sopwith Camel 1:16 Scale Motel by the Model Airways Company wfortney99 Aircraft - Fuel - Airplanes (FS/W) 4 Oct 05, 2011 08:18 AM
Yippee! Bit My bit Minnow 16"ws, 17g AUW jonathan8388 Scratchbuilt Indoor and Micro Models 26 Sep 17, 2005 10:07 AM