Go Back  RCU Forums > RC Airplanes > RC Jets
Reload this Page >

Sukhoi SU-37 "Terminator"

Notices
RC Jets Discuss RC jets in this forum plus rc turbines and ducted fan power systems

Sukhoi SU-37 "Terminator"

Old 01-13-2017, 02:46 PM
  #51  
Kevin_W
My Feedback: (1)
 
Join Date: Mar 2002
Location: Carrollton, TX
Posts: 1,264
Likes: 0
Received 7 Likes on 5 Posts
Default

Originally Posted by DelGatoGrande
Kevin , the product on the link says shore hardness 80! It is not very hard for tyre?
I didn't want to go too hard and have poor traction. The finished tires actually felt much harder than BVM tires, and I think they would have performed very well. We will never know though since I crashed my ME262 on the second flight (my own fault). I did do a number of taxi tests, 2 takeoffs, and one landing on them though, and they the wear on the threads was minimal. I would suspect a higher shore hardness would be necessary with microballoons added though.
Old 01-24-2017, 08:06 AM
  #52  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Originally Posted by spaceman 01
DrScoles, I have an AD -27 for sale in here check the classifieds. George, I was the pilot in the video that you posted earlier and it didn't crash, it was a safe landing.
thank you,
Nick

Hello Nick! I didnt know it was you!
In anyway loosing one of the main tyres can cause loss of control and crash
thats why i had to make mine.

Last edited by DelGatoGrande; 01-24-2017 at 08:32 AM.
Old 01-24-2017, 08:32 AM
  #53  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Originally Posted by Kevin_W
I didn't want to go too hard and have poor traction. The finished tires actually felt much harder than BVM tires, and I think they would have performed very well. We will never know though since I crashed my ME262 on the second flight (my own fault). I did do a number of taxi tests, 2 takeoffs, and one landing on them though, and they the wear on the threads was minimal. I would suspect a higher shore hardness would be necessary with microballoons added though.

Hello Kevin,
sorry to learn about the crash. The tires i make are ca. 40shore .Just like BVM . They are very strong and light.
The guys who have got some from me,they have logged in more than 30 flights with no thread wear already!
Old 01-24-2017, 12:06 PM
  #54  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Now back to the gear..
i want it to look scale and some parts i didnt like at all

Like the frond "box look" part of the leg ...

Old 01-24-2017, 12:29 PM
  #55  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

so i had to ...cast this parts my self
but before continue..


DISCLAIMER:

Casting is VERY DANGEROUS .
I have NO responsibility if you try to do what i did and you set your self ..or you town on fire.No experience , no training ,no safety gear will put you in big trouble. Not even fuel fire can be compared with metal fire.
Plus that the wrong choice of metal can cause explosion .




Last edited by DelGatoGrande; 01-24-2017 at 12:37 PM.
Old 01-24-2017, 12:32 PM
  #56  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

First was designing the parts..Here is the bottom frond part for example

https://www.youtube.com/watch?v=0OafhSlTMEQ
Old 01-24-2017, 12:36 PM
  #57  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

and useful to have friend with router

...cutting the plugs ... aluminium but also wood can be used!



https://www.youtube.com/watch?v=eLzXq5Gja7E
Old 01-24-2017, 01:39 PM
  #58  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

some aluminium for melting ..maybe next time you will think twice before throwing away that old glow or gas engine...special them OS ...good quality aluminium.
...dont worry removing screws ..there melting point is way lower than aluminium so they will just stay at the bottom.

Old 01-24-2017, 01:43 PM
  #59  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

dont roll your $ is not what you think LOL 0,25% - 0,5% of drossing flux to separate any rust and clean the aluminium

Old 01-24-2017, 01:49 PM
  #60  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

And fire..... with the help of a ... hair dryer (in cold mode) you have an oxygen booster that will boost the temp in levels more than enough to melt the aluminium!

Old 01-24-2017, 02:06 PM
  #61  
SECRET AGENT
My Feedback: (18)
 
SECRET AGENT's Avatar
 
Join Date: Mar 2002
Location: Bush, LA
Posts: 1,260
Likes: 0
Received 1 Like on 1 Post
Default

Attached Thumbnails Click image for larger version

Name:	I_Tried_It_at_Home_vi_6e7fb.jpg
Views:	756
Size:	26.4 KB
ID:	2198053  
Old 01-24-2017, 02:47 PM
  #62  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

lol
Old 01-24-2017, 02:51 PM
  #63  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

the melted aluminium and the magic sand ...

i must wait to cool first
i must wait to cool first
i must wait to cool first
i must wait to cool first
i must wait to cool first

....ye right.. i opened it



Last edited by DelGatoGrande; 01-24-2017 at 03:02 PM.
Old 01-24-2017, 02:58 PM
  #64  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

the final part in primer ... more scale

LINK with more photos of the casting procedure here ! >>>>>>>> http://www.petame.gr/forumv/showthread.php?t=9515





Old 01-26-2017, 12:31 AM
  #65  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

The gear/engines mounts bonding with hysol and G10




Old 01-26-2017, 04:41 AM
  #66  
FalconWings
My Feedback: (57)
 
FalconWings's Avatar
 
Join Date: Mar 2002
Location: Fort Worth, TX
Posts: 6,995
Received 15 Likes on 13 Posts
Default

George,

I sure hope that lower gear strut is just for decorative purposes. Aluminum casting is extremely brittle and has a very low UTS. Looks beautiful but I question durability. Keep an eye on it. Should be ok if you do smooth landings all the time. (Note machined Aluminum can be significantly stronger if the right alloy is chosen).

BTW, OS engines are made of a type of Calamine, which is a very light but very soft Aluminum. What sets OS apart is their high quality cylinder liner and their tight tolerances during build, which results in excellent performance. Otherwise their Aluminum is not great for landing gear applications. Plus, when you melt it and regenerate it without the proper cooling recipe, it could be useless.

David
Old 01-26-2017, 12:01 PM
  #67  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Hi there David, yes a machined is always stronger ! But mine its not for decorative purposes i have many flights on it already
Before using it , i casted and tested many. There is no problem. One strange thing i discover with the Sukhoi is the forces involved of the frond gear. They are very little.
Because of the main wheels pivot point is very close to the CG the frond leg is handles less weight. I even changed the frond spring to one of the softest ones i could find.
Thanx for the heads up anyway ....i guess i could spend an hour casting 30 of this and changed them at the end of each flying day lol

..regarding cooling...you reminded my first time in castings .Total failure because of the dimentions of the plugs !
So i learned the hard way in casting you need to make plugs enlarged because after cooling the actual final part gets smaller LOL

Last edited by DelGatoGrande; 01-26-2017 at 12:40 PM.
Old 01-26-2017, 12:12 PM
  #68  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

The main fuel tanks. They make them symmetrical to save making molds for left and right.But i can use this empty space for more fuel..


Old 01-26-2017, 12:14 PM
  #69  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default




Old 01-26-2017, 12:18 PM
  #70  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Vacuum the corner "plug" to create the new wall with kevlar and hysol it .
..thats more like it!

(gain more than half a litter per tank!)


Last edited by DelGatoGrande; 01-26-2017 at 12:24 PM.
Old 01-27-2017, 12:47 PM
  #71  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Continuing with elevons Mass balancing .Lead +Hysol !
Now the servos will not fight the weight of the elevons .Only the air forces.



Last edited by DelGatoGrande; 01-27-2017 at 12:55 PM.
Old 01-27-2017, 06:36 PM
  #72  
Zeeb
My Feedback: (41)
 
Zeeb's Avatar
 
Join Date: Nov 2004
Location: St George, Utah UT
Posts: 5,684
Received 65 Likes on 52 Posts
Default

Hmmm..... all this thrust vectoring stuff the Russians have been doing for quite some time, and more recently other countries including the USA, is interesting and as noted makes a great airshow.

What I don't understand is how the low speed maneuverability is of any advantage unless we're taking on helicopters?????
Old 01-28-2017, 01:39 AM
  #73  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

Originally Posted by Zeeb
Hmmm..... all this thrust vectoring stuff the Russians have been doing for quite some time, and more recently other countries including the USA, is interesting and as noted makes a great airshow.

What I don't understand is how the low speed maneuverability is of any advantage unless we're taking on helicopters?????

Here is a video example from worlds best for you to understand .From the Greek Air Force. No Hollywood movie sht here.Real life worlds best.


VIDEO 3:12 the defended slows down changing the situation to close combat where missiles are useless and only guns can be used.
Guns point where aircraft is pointing.So the one who chase try to turn as tight as he can to take the kill.
With vector thrust he can turn tighter with out loosing cotrol and take the kill.
Canards are ok but they do need airflow.Something that vector thrust dont care about and offers superior manoeuvrability


https://www.youtube.com/watch?v=HVLtj4-1CwM 

Last edited by DelGatoGrande; 01-28-2017 at 01:51 AM.
Old 01-28-2017, 01:51 AM
  #74  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

And before anyone will come in waiving his big AimX again here is some info about "Greek Air Force worlds best"

Performance report of HAF (Hellenic/Greek AirForce) at AFB Nellis Nevada in the famus RedFlag exercise:



Greek pilots have achieved in total 18 "kills" against USAF Aggressors while suffering only 3 losses in air-to-air combats-
during a mission of protecting a HVAA target with 4 HAF aircraft against 12 USAF Aggressors fighters.


The first day of the drill scoring was11-0 to Greek pilots and to the last mission,mentioned above,
they have managed 7 "kills" against Aggresors fighters while loosing only 3 in exchange.


...simply astonishing ...not!
Astonishing was the unofficial info member of the mission told me that they manage a "close" on a F-22 .
They didnt got the "lock" for the kill, only the "close".
Because of the head of Iris-T could not "lock" even with the use of JHMCS.
But thats not a problem as HAF has available "Image IR/ Fire and Forget" heads .


..the sad part of all this "...not only they stoped shake our hands..they stoped even talking to us..."






As said thats not Hollywood sht. RedFlag is real life:
https://www.youtube.com/watch?v=rcKg6YGmZ80

Last edited by DelGatoGrande; 01-28-2017 at 03:04 AM.
Old 01-28-2017, 02:25 AM
  #75  
DelGatoGrande
Thread Starter
My Feedback: (23)
 
DelGatoGrande's Avatar
 
Join Date: Mar 2004
Location: ATHENS, , GREECE
Posts: 3,001
Likes: 0
Received 17 Likes on 11 Posts
Default

back to the elevons..i decided to add "shear webbing" in them for extra strength..
I do rolling harrier and hover giant aerobatics so i am going to try cobras and dont want them elevons to fly away lol

hysol and ply






carbon added inside the elevons where horn will be glued






extra holes to the thick carbon horns for better bond with the hysol




elevon servos,.Perfectly matched true PowerBox to deliver 50kg or torque on each elevon.Nice and overkill




The geometry has been set with the suggested travel..an little more "up"
So no"end point" reduction ! Meaning full possible resolution feeling on the sticks



Last edited by DelGatoGrande; 01-28-2017 at 02:34 AM.

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.