HobbyKing.com New Products Flash Sale
Closed Thread
Thread Tools
Old Jan 06, 2008, 10:42 PM
DJI SUPPORT / TESTING
blade strike's Avatar
United States, CA, Big Bear
Joined Jan 2006
9,394 Posts
Cool
The Official Blade 400 Thread - Questions - Support - all you need to know!

Well Since we have alot of people starting new threads regarding the blade 400 I thought I would start a thread for all the question and comments on this heli.

I dont have one but for the price I might just add one to my fleet
blade strike is offline Find More Posts by blade strike
Site Sponsor
Last edited by blade strike; Jan 10, 2008 at 12:47 PM.
Sign up now
to remove ads between posts
Old Jan 06, 2008, 11:25 PM
Flying on Flux Capacitors
Flipper_118's Avatar
Edmonton, AB
Joined Apr 2005
1,422 Posts
Great idea...hope everyone takes to it (posting in this thread that is).

I picked one up a few days back. One of the best little beasts I have flown yet...very nice package for the price...now lets get a whole bunch in the air and start modifying em!

Curt
Flipper_118 is offline Find More Posts by Flipper_118
Old Jan 06, 2008, 11:43 PM
DJI SUPPORT / TESTING
blade strike's Avatar
United States, CA, Big Bear
Joined Jan 2006
9,394 Posts
yeah it would be cool if they do, maybe we can even make it a sticky
blade strike is offline Find More Posts by blade strike
Site Sponsor
Old Jan 07, 2008, 12:28 AM
RH Guy
RHash's Avatar
Oahu, Hawaii
Joined Dec 2007
417 Posts
Well, I have (finally) managed to crash my b400 into mother earth. this is my 1st heli -- 3rd flight out all was going well, until I decided to try & circle around myself. BIG MISTAKE! -- I guess I was not ready for this move -- heli got far away from me real quick, in my haste to return, overcorrected tail, then misorientation (partly due to sun glare), before I knew it heli is going straight down nosefirst from about 20 feet up, and maybe 150 feet away. BAM! Now i gotta go shopping for parts, which includes:

main rotor blades
spindle shaft
main shaft
shaft bearing
landing gear skid
canopy and canopy mount rod (the crash shattered the stock canopy)
servo gears (2 servos?)
various screws/hardware

Amazingly, the head assembly seems to have escaped unscathed for the most part -- only the spindle and main shaft (and blades of course) appears to have been damaged in the head.

Question: How can you tell if a servo gear set needs replacing? I know for sure one of my aileron servo gears is stripped -- after the crash, one of the aileron servos didn't stop its motor after full travel in one direction. The other aileron servo moves OK with the radio, but when I move the servo horn by hand, I can feel it "skipping" periodically. Should I just replace all the servo gears?

One good thing about this crash is it now forces me to disassemble part of the heli (and hopefully learn more about how things work) -- when I first got the 400 I was sort of nervous about touching anything on it. Now its like -- give me that screwdriver! I guess sort of like after getting your first ding on a new car.
RHash is offline Find More Posts by RHash
Old Jan 07, 2008, 01:10 AM
Flying on Flux Capacitors
Flipper_118's Avatar
Edmonton, AB
Joined Apr 2005
1,422 Posts
Quote:
Originally Posted by RHash

Question: How can you tell if a servo gear set needs replacing? I know for sure one of my aileron servo gears is stripped -- after the crash, one of the aileron servos didn't stop its motor after full travel in one direction. The other aileron servo moves OK with the radio, but when I move the servo horn by hand, I can feel it "skipping" periodically. Should I just replace all the servo gears?
Sorry to hear about the crash...least you know your limits now. I have crashed my previous helis a few times by thinking I can fly better then actuality. If you can feel it skipping replace it. Servos gears dont cost all that much and a faulty servo can put a very bad end to a very nice heli flight.

Curt
Flipper_118 is offline Find More Posts by Flipper_118
Old Jan 07, 2008, 02:12 AM
Registered User
Joined Aug 2007
370 Posts
Question: What's the best you can do with the stock gyro and tail servo? How best to tweak it, what kind of performance can be expected?

Question: If you replace only the stock tail servo with one capable of handling the gyro in digital mode, is that a good improvement? Is it worth doing that before buying a replacement gyro, to see if it's "enough?"

Question: How do the economics work out versus buying a T-Rex, if you factor in the upgrade price of a new gyro & tail servo?

Question: Considering the plastic head & other parts of the B400, compared to the aluminum & CF in the T-Rex SE V2, is the B400 going to be cheaper to repair, on a crash-by-crash basis?

Question: Once the DX6i becomes readily available with good pricing, and maybe a few start hitting the market when DX7 owners buy B400's, how does it stack up to DX7?

For instance: suppose I'm sure I don't need 7 channels or more than 10 models. Is the DX6i as good right there? And is the roller control a (big) relative feature improvement over the DX7?
trickybit is offline Find More Posts by trickybit
Old Jan 07, 2008, 09:27 AM
Too dumb to upload an avatar.
chrise2's Avatar
On the LIRR somewhere
Joined Jan 2007
2,405 Posts
Quote:
Originally Posted by RHash
Well, I have (finally) managed to crash my b400 into mother earth. this is my 1st heli -- 3rd flight out all was going well, until I decided to try & circle around myself. BIG MISTAKE! -- I guess I was not ready for this move -- heli got far away from me real quick, in my haste to return, overcorrected tail, then misorientation (partly due to sun glare), before I knew it heli is going straight down nosefirst from about 20 feet up, and maybe 150 feet away. BAM! Now i gotta go shopping for parts, which includes:

main rotor blades
spindle shaft
main shaft
shaft bearing
landing gear skid
canopy and canopy mount rod (the crash shattered the stock canopy)
servo gears (2 servos?)
various screws/hardware

Amazingly, the head assembly seems to have escaped unscathed for the most part -- only the spindle and main shaft (and blades of course) appears to have been damaged in the head.

Question: How can you tell if a servo gear set needs replacing? I know for sure one of my aileron servo gears is stripped -- after the crash, one of the aileron servos didn't stop its motor after full travel in one direction. The other aileron servo moves OK with the radio, but when I move the servo horn by hand, I can feel it "skipping" periodically. Should I just replace all the servo gears?

One good thing about this crash is it now forces me to disassemble part of the heli (and hopefully learn more about how things work) -- when I first got the 400 I was sort of nervous about touching anything on it. Now its like -- give me that screwdriver! I guess sort of like after getting your first ding on a new car.
You need to take the servo apart and check the gears. Its not hard. Some servos are screwed together, others snap or have tape holding them together. Just remember how the gears go. There will be like 4 or 5 gears that need to go back on. Can you even get replacement gears for those servos yet?
chrise2 is offline Find More Posts by chrise2
Old Jan 07, 2008, 09:29 AM
Fly a LiL' Lower Will Ya!
mrm1's Avatar
North Central Florida
Joined Sep 2004
4,811 Posts
Could I replace the STock Gyro with a Telebee Zoom or Zoom Sub-Micro HH Gyro and still use the Stock Tail Servo?

Which Gyro would be better, the Zoom or Zoom Sub-Micro?
mrm1 is offline Find More Posts by mrm1
Old Jan 07, 2008, 09:32 AM
Registered User
USA, CA, San Diego
Joined Jun 2007
692 Posts
Quote:
Originally Posted by mrm1
Could I replace the STock Gyro with a Telebee...
Which Gyro would be better, the Zoom or Zoom Sub-Micro?
Most likely, but I doubt the Telebee would perform much better, if any better, than the stock gyro.

AFAIK, there's no difference between the two Telebees other than the weight.
ccdengr is offline Find More Posts by ccdengr
Old Jan 07, 2008, 09:32 AM
Registered User
Wallyfingers's Avatar
Grain Valley, MO
Joined Aug 2007
170 Posts
I've seen a few of 400's flown by Newbies. Two hovered good and two had issues and were hard to keep up with, they where all over the place. It looked like bad servos, but turned out to be very tight ball links that would not let the servos get back to neutral on it's own. After re-sizing the links, hovering was good.
It sounds like Factory Test Flown means, if it got off the ground and back down without breaking it, ship-it!!!


Wally
Wallyfingers is offline Find More Posts by Wallyfingers
Old Jan 07, 2008, 09:43 AM
Fly a LiL' Lower Will Ya!
mrm1's Avatar
North Central Florida
Joined Sep 2004
4,811 Posts
Quote:
Originally Posted by ccdengr
Most likely, but I doubt the Telebee would perform much better, if any better, than the stock gyro.

AFAIK, there's no difference between the two Telebees other than the weight.
I may give it a go as I have read Raves about the Telebees, but with the Stock E-Flight .... Ah ... Not so much.
mrm1 is offline Find More Posts by mrm1
Old Jan 07, 2008, 09:52 AM
ModemMisuser
Lafayette, IN
Joined Dec 2007
1,095 Posts
Quote:
Originally Posted by Wallyfingers
I've seen a few of 400's flown by Newbies.
When you say "newbies", how new are you talking? I'm a little scared of even spinning up my 400 until I master the HBFP I bought as a "trainer", but heck, if true newbs are having success with the 400... Maybe I should give it a spin.
Jon Craig is offline Find More Posts by Jon Craig
Old Jan 07, 2008, 10:01 AM
Registered User
Wallyfingers's Avatar
Grain Valley, MO
Joined Aug 2007
170 Posts
My definition of Newbies: Someone that can hover a Honeybee FP without crashing and wants to move up, THAT'S ME.
My plan, is to master the 400 and move up to the 500, skipping the 450 altogether.


Wally
Wallyfingers is offline Find More Posts by Wallyfingers
Old Jan 07, 2008, 10:03 AM
Too dumb to upload an avatar.
chrise2's Avatar
On the LIRR somewhere
Joined Jan 2007
2,405 Posts
There seem to be more than a few people where the Blade 400 is there first heli.
chrise2 is offline Find More Posts by chrise2
Old Jan 07, 2008, 10:05 AM
ModemMisuser
Lafayette, IN
Joined Dec 2007
1,095 Posts
Quote:
Originally Posted by Wallyfingers
My definition of Newbies: Someone that can hover a Honeybee FP without crashing and wants to move up
Ok. More of an "advanced n00b", than a pure virgin n00b. I shall wait.

I really don't want to have to repair the 400. Heh.
Jon Craig is offline Find More Posts by Jon Craig
Closed Thread


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
All you wanted to know about motors but was afraid to ask DanC Power Systems 1 Sep 11, 2001 08:41 AM