SMALL - espritmodel.com SMALL - Telemetry SMALL - Radio
Reply
Thread Tools
Old Feb 13, 2013, 09:46 PM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
My mb-1 was running better under esc setting's for a inrunner motor than a out runner. Today I reprogrammed the cc100 for outrunner for the mb-1 on the sabre.
On 4s got 800 watts which is less than I got several years back. And on 5s , it put out 350 watts... Im
capt soap is offline Find More Posts by capt soap
Reply With Quote
Sign up now
to remove ads between posts
Old Feb 13, 2013, 11:42 PM
Registered User
Jetnfast's Avatar
United States, MO, Warrensburg
Joined Feb 2008
2,256 Posts
Yeah agree, that seems Low. I am running the same in my saber, MB-1, last time I checked it was right around 900-1000w on 4s if I remember correctly. I haven't tried 5s, but figure you should see 1200-1400w, maybe more....350w is way off. Maybe try resetting the ice back to factory defaults.
Jetnfast is offline Find More Posts by Jetnfast
Reply With Quote
Old Feb 13, 2013, 11:50 PM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
I just set the pwm to 12. and on 5s got about 1450 watts. thats strange on a outrunner. Any idea whats up? Have not tested on 4s. the wife is home im hearing,
" honey, coulded you have done that all day today, it's too loud!!.
capt soap is offline Find More Posts by capt soap
Reply With Quote
Old Feb 14, 2013, 09:29 PM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
I bought this mb-1 used. maybe it's life is in the final part. So maybe just go with what Im getting. If it dies I can go with a better motor. Het, arc, mega, honda.
capt soap is offline Find More Posts by capt soap
Reply With Quote
Old Feb 14, 2013, 11:12 PM
Registered User
Jetnfast's Avatar
United States, MO, Warrensburg
Joined Feb 2008
2,256 Posts
1450w should be plenty for the sabre on 5s. What size 5s pack are you able to squeeze under the canopy?
Jetnfast is offline Find More Posts by Jetnfast
Reply With Quote
Old Feb 14, 2013, 11:17 PM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
I only have 2, 5s packs. A 2700 & a 2200. I have 2, 4s 3000 mh packs.
capt soap is offline Find More Posts by capt soap
Reply With Quote
Old Feb 15, 2013, 01:13 AM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
Might have burnt a new digital elevator servo during programing tonight.... bugs!!!!!!!!
capt soap is offline Find More Posts by capt soap
Reply With Quote
Old Feb 15, 2013, 07:55 AM
Sponsored by Team de la Peņa
bdelapen's Avatar
United States, FL, Pembroke Pines
Joined Aug 2008
2,606 Posts
Quote:
Originally Posted by capt soap View Post
I only have 2, 5s packs. A 2700 & a 2200. I have 2, 4s 3000 mh packs.
So 1450W sounds about right with good batteries on the SAPAC Fan and MB-1 motor. With a little throttle management and reasonable cooling (see the L-39 thread for pictures of cutting cooling openings into the housing) that setup will last all day. Current should be in the 90A - 100A range and with good voltage holding (say 3.4V - 3.5V per cell) you will easily reach that number. I like to say that you should see 800W - 900W on 4S and 1400W - 1500W on 5S.

Your batteries on the other had may not be up to the task. We absolutely killed a TP 3250 5S 45C with that setup and after 2 1/2 minutes we turned what was in essence a brick into something resembling a sausage.

- Birger
bdelapen is online now Find More Posts by bdelapen
RCG Plus Member
Old Feb 15, 2013, 10:02 AM
Registered User
Jetnfast's Avatar
United States, MO, Warrensburg
Joined Feb 2008
2,256 Posts
Sounds like a 60-120C pack is the only way to go. I still have my ice 75 in mine, so I am stuck with 4s for now.
Jetnfast is offline Find More Posts by Jetnfast
Reply With Quote
Old Feb 15, 2013, 10:43 AM
Sponsored by Team de la Peņa
bdelapen's Avatar
United States, FL, Pembroke Pines
Joined Aug 2008
2,606 Posts
Quote:
Originally Posted by Jetnfast View Post
Sounds like a 60-120C pack is the only way to go. I still have my ice 75 in mine, so I am stuck with 4s for now.
That's the thing thought. Those TP packs were 45C - 90C, there were only a few WOT runs and in all theory they should be able to take 130A continuous but I feel that once you get into those really high C ratings things aren't always what they seem.

Plus, the flight times at those super high C ratings are very short so unless you are running very low throttle or flying something like a glider where you only use the throttle for 5s - 8s bursts they will only take you so far. Remember, 30C = 2 minutes of flight time, 60C = 1 minute of flight time.

- Birger
bdelapen is online now Find More Posts by bdelapen
RCG Plus Member
Old Feb 15, 2013, 11:47 PM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
Saber is down since last night!!!!!!!!!:censo red:
While setting control throws, all controls moved a little has though a reciever battery was dying, but im on bec/esc. All died!!! esc gave 5 beeps,( loss of radio conection). Radio charged/ lipo charged. Jet dead!!. spent 3-4 hours today messing with it. This is what I do know. 1. elevator high power digital servo is dead. 2. All other servo's work. 3. esc bec miight be burnt out???? If this was in the air.... it would have been a another totalled jet..... maybe this is what brought down my habu2. Same esc???
capt soap is offline Find More Posts by capt soap
Reply With Quote
Old Feb 15, 2013, 11:49 PM
Registered User
capt soap's Avatar
dallas tx
Joined Jun 2003
2,899 Posts
Saber is down since last night!!!!!!!!!:censo red:
While setting control throws, all controls moved a little as though a reciever battery was dying, but im on bec/esc. All died!!! esc gave 5 beeps,( loss of radio conection). Radio charged/ lipo charged. Jet dead!!. spent 3-4 hours today messing with it. This is what I do know. 1. elevator high power digital servo is dead. 2. All other servo's work. 3. esc bec miight be burnt out???? If this was in the air.... it would have been a another totalled jet..... maybe this is what brought down my habu2. Same esc???
capt soap is offline Find More Posts by capt soap
Reply With Quote
Old Feb 16, 2013, 02:56 AM
Aka: Tom Jenkins
ApexAero's Avatar
Palm Beach County, Fl.
Joined Aug 2008
4,490 Posts
Lee I feel for you, fortunate it happened when it did. I had a similar experience on a heli once. Coulda been worse!
Wanted to say the sweetest fan combo I've used in one of these was a Het / JS1400 on 5s. Smooth and quiet, flew with authority. I have a reinforced elevator to go with the fuse for you. (lube the push rods)
ApexAero is online now Find More Posts by ApexAero
Reply With Quote
Old Feb 16, 2013, 09:57 AM
Registered User
Jetnfast's Avatar
United States, MO, Warrensburg
Joined Feb 2008
2,256 Posts
Lee - I would recommend trying to isolate the problem with some other gear. Try using a spare ESC and see if it is indeed the BEC. If its a castle, just send it back and they should be able to swap it out for you. ICE 100 right?
Jetnfast is offline Find More Posts by Jetnfast
Reply With Quote
Old Feb 16, 2013, 02:10 PM
chuck
santa barbara, CA
Joined May 2009
4,182 Posts
ya . i would check the bec output under load with the same battery.
chas650r is offline Find More Posts by chas650r
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion E-flite F-16 400 DF ARF - Extension Wires (and other various headaches). HansAuf Foamy EDFs 10 Jan 08, 2010 05:08 PM
Discussion E-flite F-16 400 DF ARF /JR 9303 tigerbug Foamy EDFs 0 Dec 13, 2009 08:59 AM
For Sale Skymaster F-86 Saber Orion Pax Aircraft - Fuel - Jets (FS/W) 0 Sep 23, 2009 07:38 PM
Sold Bvm F-86 Saber guysrc Aircraft - Fuel - Jets (FS/W) 4 Sep 15, 2009 01:48 PM
Sold BAe Hawk 15 DF ARF by E-flite brand new in box never opened java8297 Aircraft - Electric - Jets (FS/W) 3 Sep 07, 2009 07:33 PM