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Old Nov 02, 2011, 09:33 PM
I always find software bugs!
United States, AZ
Joined Nov 2010
65 Posts
Hi guys,

Does anyone out there have the foam 'plugs' that go in the landing gear bays (the ones that fill the bays if you weren't going to use the gear at all) left over?

Thanks,

J
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Old Nov 02, 2011, 09:34 PM
Build'm,Fly'm,Crash'm
redlite's Avatar
Sacramento CA
Joined Oct 2009
629 Posts
The stock gear is pretty tough when the final weight is at the factory specs, which is about 35 ounces or so. We are 10 ounces (46 total) over that and the gear is able to handle only minor rough landings. At your 55 ounces, well, even normal landings pose risks for the stock gear, just not designed to carry that weight. That said, the plane itself can carry the extra weight and probably even more. Landing speeds go up as the weight does, so the loads follow suit. Good thing is, lots of LG out there to choose from.

Joe
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Old Nov 03, 2011, 07:47 AM
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powder springs georgia
Joined Nov 2003
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Quote:
Originally Posted by Kennamer View Post
Hi Sanman,

I checked out the link for the landing gear and am all for buying them when they come in stock... but... what exactly is the problem that these gear fix? I guess I should have asked that earlier. Does the base of the retract break upon landing? Looking over my gear, it seems the area by the hinge pin might be a little weak. Is that the problem?

Thanks,

J
Its the weight of the bird...I had a perfect landing and the gear held up fine but I ran off into the grass and ALL 3 gear broke off at the base..The landing gear I suggested is for the f-35 and su-34.. I used the su-34 gear off my bird ,that bird weighed 65 oz..and had many rough and bounce landings..
My bird now weighs 55 oz...thats weigh over the 32 oz. stock... as Joe said there are many choices out there...I was going to try and use my motor retracts I used on my cesna 310 but they wiere too big to fit...the fit is the problem ,, length-width-height and it happens that the ones I suggested are almost perfect...they are a little wider but all you do is open the opening a little with a dremil .. a tool must for mods.
If you land like I do sometimes nothing will hold up
And on this bird,because of the weight, she comes in very hot, thats why I am putting on a parachute

I am having trouble stearing this bird...it is so lite on the front end that when it gets up to speed it bounces the front and makes stearing almost impossible.I might just have some linkage or servo problems cause the first 2 flights steared straight...am working on this...
I also push down elevator to get the nose more traction ..I put the parachute on a switch that deploys and also gives full down on the elevator..
Are others having this problem??
On my last flight I landed and went off into the grass again but the gear held up just fine...
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Last edited by sanman55; Nov 03, 2011 at 07:59 AM.
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Old Nov 03, 2011, 06:44 PM
I always find software bugs!
United States, AZ
Joined Nov 2010
65 Posts
Hi all,

I'm not sure if there is a technical reason preventing this (if there is, I assume it would be due to the high RPMs of a ducted fan motor), but it would be cool if you could use two car ESCs w/ reverse enabled to provide thrust reversing at the low end of the throttle stick's travel. Of course the fans aren't aerodynamically optimized to run backwards, but they would provide some reverse thrust and braking force. Would be pretty neat to hit the runway hot, then kick in the 'reversers'.

Anyway, just a quick survey question... How are you guys mounting your wing servos? Hot glue? Tape? CA? Epoxy? All of the above? So far I am leaning towards wrapping the servo in masking tape then using CA.

Thanks,

J
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Old Nov 04, 2011, 07:05 AM
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powder springs georgia
Joined Nov 2003
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Quote:
Originally Posted by Kennamer View Post
Hi all,

I'm not sure if there is a technical reason preventing this (if there is, I assume it would be due to the high RPMs of a ducted fan motor), but it would be cool if you could use two car ESCs w/ reverse enabled to provide thrust reversing at the low end of the throttle stick's travel. Of course the fans aren't aerodynamically optimized to run backwards, but they would provide some reverse thrust and braking force. Would be pretty neat to hit the runway hot, then kick in the 'reversers'.

Anyway, just a quick survey question... How are you guys mounting your wing servos? Hot glue? Tape? CA? Epoxy? All of the above? So far I am leaning towards wrapping the servo in masking tape then using CA.

Thanks,

J
Interesting idea on the fans.....never thought of that..anyone else have any ideas on that???

I wrap my servo's in electrical tape and hot glue in....
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Old Nov 04, 2011, 07:11 AM
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United States, FL, Sebring
Joined Feb 2006
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In order to do that you would need a different type of transmitter. the throttle stick would have to start at center position being "0". Also would need car ESCs that can accept a signal to go in reverse.
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Old Nov 04, 2011, 11:51 PM
I always find software bugs!
United States, AZ
Joined Nov 2010
65 Posts
After some careful measuring, I decided on these retracts:

http://www.hobbyking.com/hobbyking/s...dProduct=12955

They should be strong enough to allow me to ride around on the back of the plane while taxiing around! ;-)

I'll post pictures during the installation.

J
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Old Nov 05, 2011, 07:50 AM
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powder springs georgia
Joined Nov 2003
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Seems like a good choice...did you do the slow shipping or the 4 day one??
I did not even think about hobby king...I am going to bookmark that...and with the 3mm shaft hole all you have to do is just transfer them over to the new set...and 2 sets WOW.. I am real curious on how they look..all metal??
Keep us informed..
The only other suggestion is to pull on the wood strips that hold them in...mine were not very well attached on the nose gear...with the length on the front gear it takes a lot of side stress in turns when you are doing those fast landings....ask me how I know I put mine back in with expoxy...
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Old Nov 06, 2011, 09:01 PM
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Sacramento
Joined Apr 2005
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Just got back from 3 more successful flights! The afterburners look FANTASTIC! Especially as it got darker tonight! The updated tires on the retracts worked perfect, the landing lights and rotating beacons really added to the scale look! Flight speeds were 78 - 81 - 84 MPH! SO EXCITED TO HAVE HER UP AGAIN!!!
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Old Nov 07, 2011, 12:14 AM
Shameful Warbirdaholic.
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Maple Valley, WA
Joined Apr 2006
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AWESOME bighead!!

I've said it several times before and I will always say it again...There is NOTHING that looks as cool as the SR-71 Blackbird at the flying field! Now when you add Joe's awesome afterburner kit?! Nothing beats it!
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Old Nov 07, 2011, 06:21 AM
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United States, FL, Sebring
Joined Feb 2006
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Must.... have..... video.......




Congrats on the flight and glad the afterburnerz are working as they should!

seriously guys, gotta get some vids to show off your work.
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Old Nov 07, 2011, 08:06 AM
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powder springs georgia
Joined Nov 2003
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http://www.rc-lights.com/
I found this place when looking for nav lites for the sr..
This place looks amazing and good prices too...I ordered just the 3 piece set,5300-- red and green and one strobe lite..
The selections and combo are amazing...
Just thought it was a good site and another option...Horizon hobby sells them too a little cheaper but the home site explains things better...
I am hopeing that this will also help in my orientation issues....
Think I got the parachute working, will try and get vid later..still working on my loose stearing....
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Old Nov 07, 2011, 08:08 AM
On the Edge of Space
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Exit 4, South Jersey, USA
Joined Dec 2007
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Quote:
Originally Posted by bighead93 View Post
Just got back from 3 more successful flights! The afterburners look FANTASTIC! Especially as it got darker tonight! The updated tires on the retracts worked perfect, the landing lights and rotating beacons really added to the scale look! Flight speeds were 78 - 81 - 84 MPH! SO EXCITED TO HAVE HER UP AGAIN!!!
You da man! Congrats. Sounds like it's still thrills galore with this bird.
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Old Nov 07, 2011, 08:09 AM
On the Edge of Space
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Exit 4, South Jersey, USA
Joined Dec 2007
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Quote:
Originally Posted by sanman55 View Post
http://www.rc-lights.com/
I found this place when looking for nav lites for the sr..
This place looks amazing and good prices too...I ordered just the 3 piece set,5300-- red and green and one strobe lite..
The selections and combo are amazing...
Just thought it was a good site and another option...Horizon hobby sells them too a little cheaper but the home site explains things better...

Think I got the parachute working, will try and get vid later..still working on my loose stearing....
Whoa, a chute! Awesome!
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Old Nov 07, 2011, 08:38 AM
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powder springs georgia
Joined Nov 2003
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sr- parachute.MOV (0 min 24 sec)

Just a taste of how this SHOULD work...I added the down elevators to help keep the nose down...The door is just one piece with a servo ejecting the door..its held on with maganets and will just seperate from the plane... Its hard to see the door in the angle I took...just cut the foam back about
Will try and get it in action soon.

Just love to tinker...
Just hope I don't hit the wrong switch while its flying
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Last edited by sanman55; Nov 07, 2011 at 08:50 AM.
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