Thunder Tiger ready mk3 / OS55ax build

Started by flying truck, March 23, 2012, 03:29:46 AM

Previous topic - Next topic

0 Members and 1 Guest are viewing this topic.

flying truck

With this thread i hope to document my first nitro plane build, unfortunately i haven't taken many pictures till now, i'll put up stuff from the current stage

Parts that i chose for this build,

Airframe
Thunder Tiger Ready mk3 (This is an ABS ARF and not a typical balsa ARF)

Engine
OS 55ax

Radio
Airtronics SD-6G
Airtronics RX600

Servos
Hextronik/Towerpro 5010


Build tools and misc stuff
30 or 15 min epoxy
CA glue
PVC Solvent

Hex screw drivers
Pliers
Files
Sand paper (200 and 400 grit)
Drill

Thunder Tiger 11x7.7
Master Airscrew 11.5x7.5 Formula One Prop (needs to be reamed to fit the os engine shaft)

Fuel Filter
Silicone tubing



Here a video of me testing the servos to see if they work in the first place




flying truck

The picture of the engine. The mount had to be sanded down to make the OS55AX fit

flying truck

#2
Fuel tank mounted, the yellow stuff is pvc solvant


Servo Tray and bulk head all glued with CA (super glue)


Elevator and rudder installed I didn't take pics of how the elevator is put together, it comes as two pieces and is glued together with the help of a balsa wood spar



allthatido

All the best for your build flying truck. Where did you get the ARF from ?

flying truck


divay99

a few things to watch out for ....

1. OS 55AX is an overkill for this plane ... an OS46AX would have been perfect ... check the CG ... also make sure you have good throttle control while landing .....

2. its great to use CA but I would also suggest a dash of 30 min epoxy on important parts such as the servo tray....
Divay Puri
+91-98-119-63278
https://www.facebook.com/#!/groups/NOIDAAEROCLUB/
http://www.amai.in/noida.php
FUTABA T6EX|FUTABA 8FG|SEAGULL 40|SEAGULL FAIRCHILD -PT19|PIPER CUB - 90"|EDGE 540 EP TMPRO|YAK 54 .60| Mustang P51 .40|AXN FLOATER JET|HK Bixler|REACTOR 3D EP|U CAN DO 3D| Blitz SkySurfer|EDF Jet T-45 Goshawk|HK-450 GT PRO|Seagull PC-9 .91|Edge 540 20cc|Reactor 50cc|PC-9 30cc|SU 26 30cc|HK 450 GT|Hirobo Evo .50|MXSR 50cc|Tarot

saikat

Good plane - lands fast - need a lot of space for approach

asinghatiya

+1 to Saikat. Its weight is almost double than a normal balsa model hence double landing speed....:salute:
:-)

flying truck

Ya i will epoxy the tray for extra strength then.

Its not double the weight compared to other 40 size balsa trainers, asinghatiya. But mine will be slightly heavier because the engine i used weighs more than the recommended TT engine.

praveen

with this setup i would suggest to go with branded servos ,instead of hextronik or towerpro!
To increase thrust you need more  money! But to reduce weight you  need nothing!

Ahmad

I agree with Divya, as he has mentioned that the OS 55AX is a over power engine for this model. And someone else has mentioned to use better servo which is a very good idea, you could use digital 5 kg torque servos, as I am not sure if you are putting single servo or dual servo in the wing, whereas the dual servo setup is a good idea. Also use 30 mins epoxy on the servo tray and also on the engine mount from inside. Make sure that your CG is as per the manual. While landing make sure to land in a pitch up attitude so that you slow the airplane as much as you can.
Happy landing

roopeshkrishna

Truck..me and my Colleagues tried this TT REA, with various powerplants.. proved sucsessful.. its a great ARF.. with only some minor modifications it flies like a carpet.. with a woooommmm punching noise.. sheer exciting.. add an additional piece of reinforcement, from repair kit, to nose wheel adaptor.. have some nice flights..
Phoenix.........

roopeshkrishna

and were using servos from D Y S, is proven value for money still working after an year, after taking a good training  load.. !!
Phoenix.........

flying truck

Well i really don't want to pull the engine out right now. And has anyone had problems with the hextronik 5010? I read that its was the towerpro metal geared servos that are bad. I will ofcourse check the CG and lateral balance once everything is done.

More pics





roopeshkrishna

Hextronix is also a best option.. was using a lots on crafts..  :thumbsup:
Phoenix.........

flying truck

Ya i took them apart they seem well built, the control board is supported and no frayed wires.

flying truck

Got the prop balanced



And the assembly is complete, pending paint



The plane is definitely a bit nose heavy even with the battery pack real close to the bulk head so will have to add a bit of lead to the tail. Haven't checked lateral balance as yet.

roopeshkrishna

Phoenix.........

flying truck

Broke in the engine today. Glow fuel looks like caramel vodka  ;D

Followed this procedure instead of the OS recommended one
http://www.rcuniverse.com/forum/Tapered-Bore_Engine_Break-in_-_Upgraded/m_1850473/tm.htm

flying truck

Picked up some stick on weights today from my local tire shop to balance the plane


Ahmad

First try to shift your battery pack to get the CG correct and then use weight. Lighter the airplane, it will fly better.

flying truck

i wish i could Ahmad. But i got the pack as close to the central bulk head as possible. I need to shift it behind the servo tray to get the CG right but that doesn't seem like a good idea as it interferes with the control lines. I need 40 grams of weight at the tail to balance it. but then the engine i chose is 175 grams heavier than the recommended TT GP-42 so i guess this is expected.