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LifeIsGood · 11-05-2008, 01:08 PM

I think Hacker B20-15L 3700 KV may work with 250. I'll give it a try later since I am not going to get my 250 until next spring. Hope some one can give it a try in between. B20 is an excellent motor if the setup is wright.

blahblah9 · 11-05-2008, 07:34 PM

anybody know how much the gyro will weigh?

Gutaaaooo · 11-05-2008, 09:59 PM

I've heard 9 grams

Primus · 11-06-2008, 04:15 AM

Quote:

anybody know how much the gyro will weigh?

GP700 has 10 grams, so I think it will be close...

blahblah9 · 11-06-2008, 09:31 AM

okay, thanks guys, anybody know what the difference will be from the gp 700 and the gp 750? besides maybe the weight?

Gutaaaooo · 11-06-2008, 12:23 PM

They have beefed up the ability to take vibration with a metal plate of some kind, and now there is a setting to chose between small heli(250, 240, etc) and larger heli(500 and up). I still haven't found anyone that compared the 2

steph280 · 11-06-2008, 04:12 PM

Details of gyro setup can be found here:
http://www.rcgroups.com/forums/showthread.php?t=948174

steph280 · 11-06-2008, 04:20 PM

Here is how I have the equipment mounted. All stock equipment with Futaba R617FS receiver. No wires were shortened.

Easiest way to install receiver and tuck in all the wires is to remove one of the lower side frame.

Gutaaaooo · 11-06-2008, 04:40 PM

I see you've taken the reciver out of it's case? i've wanted to do that before, but was afraid that in a crash it would be more prone be broken....

Do you have any experience with that?

Finless · 11-06-2008, 04:44 PM

I am sticking this thread for you guys.

Dang it Bert.... I DONT WANT ONE but your talk is making me have 2nd thoughts! Stop it please

Bob

ChrisH · 11-06-2008, 05:27 PM

Quote:

Originally Posted by Gutaaaooo

I see you've taken the reciver out of it's case? i've wanted to do that before, but was afraid that in a crash it would be more prone be broken....

Do you have any experience with that?

The receiver isn't out of the case, it's just clear plastic...

steph280 · 11-06-2008, 06:46 PM

Right. Futaba receivers have clear case.

RC_Feen · 11-06-2008, 09:19 PM

steph280....Any reason for mounting the gyro on the bottom of the mounting plate rather on the top or is it just personal preference? Great thread! Thanks for all the detail!

Beaver Rat · 11-06-2008, 11:00 PM

In a crash with the gyro on top, the flybar can chop it up.

J-Heli · 11-06-2008, 11:49 PM

Quote:

Originally Posted by Beaver Rat

In a crash with the gyro on top, the flybar can chop it up.

Not on top of the boom block, on top of the gyro tray.

RC_Feen · 11-07-2008, 05:57 AM

Quote:

Originally Posted by J-Heli

Not on top of the boom block, on top of the gyro tray.

Thanks J-Heli. That's what I'm taking about!

J-Heli · 11-07-2008, 08:14 AM

Quote:

Originally Posted by RC_Feen

Thanks J-Heli. That's what I'm taking about!

No problem.

steph280 · 11-07-2008, 10:24 AM

No particular reason other than I was able to pull the receiver in and out easier. This is how the gyro is mounted if you choose to use Futaba GY401 or JR 770. Either way will work, just have to take into account how you want your other stuff mounted.

Bert has his receiver mounted in front which is a great idea. Those Spektrum receivers are tiny and fits great anywhere.

RC_Feen · 11-07-2008, 07:20 PM

Bert....if you don't mind could you post some pictures of your 250 with the way you have the electronics installed using the Spektrum receiver? Would really appreciate it! If this has already been posted could you direct me to the thread?
Thanks!

sonofcar · 11-07-2008, 07:41 PM

Quote:

Originally Posted by RC_Feen

Bert....if you don't mind could you post some pictures of your 250 with the way you have the electronics installed using the Spektrum receiver? Would really appreciate it! If this has already been posted could you direct me to the thread?
Thanks!

check out his website http://www.bertrc.com/ he has pic's on there.

11-05-2008, 09:59 PM	#63 (permalink)
Gutaaaooo Registered Users My HF Map location Join Date: Jul 2007	I've heard 9 grams __________________ T-Rex 250 super combo T-Rex 450 PRO - I love this little guy! T-Rex 450 SE V2 - Sk360 in Airwolf fuselage T-Rex 500 Blinged to the extreme - Sk360 - Gy401/S9257 - 5045MGs T-Rex 600 LE - KDE everything, waiting on RL53 Raptor 50 eCCPM 140- QuickUk everything - G7703D/S9254 - S9252s - RedLine53

11-06-2008, 12:23 PM	#66 (permalink)
Gutaaaooo Registered Users My HF Map location Join Date: Jul 2007	They have beefed up the ability to take vibration with a metal plate of some kind, and now there is a setting to chose between small heli(250, 240, etc) and larger heli(500 and up). I still haven't found anyone that compared the 2 __________________ T-Rex 250 super combo T-Rex 450 PRO - I love this little guy! T-Rex 450 SE V2 - Sk360 in Airwolf fuselage T-Rex 500 Blinged to the extreme - Sk360 - Gy401/S9257 - 5045MGs T-Rex 600 LE - KDE everything, waiting on RL53 Raptor 50 eCCPM 140- QuickUk everything - G7703D/S9254 - S9252s - RedLine53

11-06-2008, 04:20 PM	#68 (permalink)
steph280 Registered Users Thread Starter My HF Map location Join Date: Oct 2004	Here is how I have the equipment mounted. All stock equipment with Futaba R617FS receiver. No wires were shortened. Easiest way to install receiver and tuck in all the wires is to remove one of the lower side frame. Attached Thumbnails

11-06-2008, 04:40 PM	#69 (permalink)
Gutaaaooo Registered Users My HF Map location Join Date: Jul 2007	I see you've taken the reciver out of it's case? i've wanted to do that before, but was afraid that in a crash it would be more prone be broken.... Do you have any experience with that? __________________ T-Rex 250 super combo T-Rex 450 PRO - I love this little guy! T-Rex 450 SE V2 - Sk360 in Airwolf fuselage T-Rex 500 Blinged to the extreme - Sk360 - Gy401/S9257 - 5045MGs T-Rex 600 LE - KDE everything, waiting on RL53 Raptor 50 eCCPM 140- QuickUk everything - G7703D/S9254 - S9252s - RedLine53

11-06-2008, 04:44 PM	#70 (permalink)
Finless Team Taco VP My HF Map location Join Date: Nov 2005	I am sticking this thread for you guys. Dang it Bert.... I DONT WANT ONE but your talk is making me have 2nd thoughts! Stop it please Bob __________________ "Don't Taco My Pack Dude!" NEW Video Link -> Safety Video #1 Video Link -> CAUTION using powerful tools! Video Link -> How to CRASH TWICE in one flight! Video Link -> Don't Taco!

11-05-2008, 01:08 PM	#61 (permalink)
LifeIsGood Registered Users Join Date: Feb 2008	I think Hacker B20-15L 3700 KV may work with 250. I'll give it a try later since I am not going to get my 250 until next spring. Hope some one can give it a try in between. B20 is an excellent motor if the setup is wright.

11-05-2008, 07:34 PM	#62 (permalink)
blahblah9 Registered Users Join Date: Mar 2008	anybody know how much the gyro will weigh?

11-06-2008, 09:31 AM	#65 (permalink)
blahblah9 Registered Users Join Date: Mar 2008	okay, thanks guys, anybody know what the difference will be from the gp 700 and the gp 750? besides maybe the weight?

11-06-2008, 04:12 PM	#67 (permalink)
steph280 Registered Users Thread Starter My HF Map location Join Date: Oct 2004	Details of gyro setup can be found here: http://www.rcgroups.com/forums/showthread.php?t=948174

11-06-2008, 06:46 PM	#72 (permalink)
steph280 Registered Users Thread Starter My HF Map location Join Date: Oct 2004	Right. Futaba receivers have clear case.

11-06-2008, 09:19 PM	#73 (permalink)
RC_Feen Registered Users Join Date: Apr 2008	Mounting the gyro? steph280....Any reason for mounting the gyro on the bottom of the mounting plate rather on the top or is it just personal preference? Great thread! Thanks for all the detail!

11-06-2008, 11:00 PM	#74 (permalink)
Beaver Rat Registered Users My HF Map location Join Date: Nov 2007	In a crash with the gyro on top, the flybar can chop it up.

11-07-2008, 10:24 AM	#78 (permalink)
steph280 Registered Users Thread Starter My HF Map location Join Date: Oct 2004	No particular reason other than I was able to pull the receiver in and out easier. This is how the gyro is mounted if you choose to use Futaba GY401 or JR 770. Either way will work, just have to take into account how you want your other stuff mounted. Bert has his receiver mounted in front which is a great idea. Those Spektrum receivers are tiny and fits great anywhere.

11-07-2008, 07:20 PM	#79 (permalink)
RC_Feen Registered Users Join Date: Apr 2008	Bert's T-Rex 250 electronics layout Bert....if you don't mind could you post some pictures of your 250 with the way you have the electronics installed using the Spektrum receiver? Would really appreciate it! If this has already been posted could you direct me to the thread? Thanks!

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