Thunder Tiger 120 Pro RPM numbers
 

I run this engine with a APC 16x6 and a Bisson pitts muffler and get 9700 with 10% PowerMaster. Anyone else ?;)

RE: Thunder Tiger 120 Pro RPM numbers
 

Good Day Gungadin,

The best prop I found running this engine was a 16 x 8 APC 10% fuel and turning 9400 peaked and about 88-89 to fly. This worked very well.. I would go with the APC 17 x 6 (At the time they were not out yet.) I would say a 16 x 6 is a bit light for this one..

Hope that helps.. alot of people don't like the TT engines.. I flew 250-300 flight with one I had and sold it and the fellow that bought it put another 200 plus flights on it.. He has since changed the bearings and reringed it.. and it's running strong again.. :D

All the best

Riverdancer

RE: Thunder Tiger 120 Pro RPM numbers
 

Riverdancer---I hear what you are saying about some people not liking Tunder Tigers. Some years ago I ran their 46 and 60 quite a lot and liked them both. This 120 has over 12 gal. of fuel thru it now and I am very pleased with it's performance. I tried a 17x6 apc also and my airplane prefers the 16x6. I set it for 9200-9300 on the ground which is 3 or 4 hundred off of max rpm and it gives me great vertical on my little IMAC airplane. Also gives me 1600 rpm idle very consistently. Can't beat that with a stick !!!:)

RE: Thunder Tiger 120 Pro RPM numbers
 

Hey there Gungadin..

Sorry I didn't reply sooner.. I usually check the notify box, must have missed it.

Glad to hear it works well for you.. I had great success with the one I had. You are probably right about a 16 x 6 being good for IMAC.. I was pretty limited at what I would do when I ran that engine.. I suspect you have a nice constant pull with that prop.

What level of IMAC do you fly..?

All the best.

Riverdancer

RE: Thunder Tiger 120 Pro RPM numbers
 

Riverdancer--I'm new this year in IMAC and flying Basic. Made it to 4 contests so far this year and it never fails that someone comes over after I fly a round and asks me what kind of engine I have in my plane. Most guess it is an OS 160. It does a nice job on the vertical up lines.:)

RE: Thunder Tiger 120 Pro RPM numbers
 

Hello Gungadin..

Very nice.. Glad to hear you re getting into IMAC I have a contest this week end.. I an starting in Sportsman, This will be my first official contest. We will see how it goes.:D

All the best and good luck.

Riverdancer

RE: Thunder Tiger 120 Pro RPM numbers
 

9300RPM peaked
10% nitro
14x12 APC
80 deg F
70% humidity

RE: Thunder Tiger 120 Pro RPM numbers
 

Happy--What kind of muffler are you running ?

RE: Thunder Tiger 120 Pro RPM numbers
 

Running the production muffler. New prop and fuel now though.
Prop - 13x13APC
Fuel - 15% Cool Power
Temp - 72F
Sea level
9560RPM

RE: Thunder Tiger 120 Pro RPM numbers
 

TT120 RP on 5% nitro
16*8 APC prop
home made pipe
9700-9800 rpm depending on weather conditions (prefers colder air)

RE: Thunder Tiger 120 Pro RPM numbers
 

All,
TT 120 Pro side exhaust
93 degree
Hum - Dry
10% Ritches Brew 11-11 (22% Oil)
APC 16x7
Versane (Perry) Regulated pump
9300 (Fat)
2100 idle with smooth and quick transition
Hovers a WH Baby Edge 540 9.75 lbs at 1/2 throttle
Bisson Side Pitts muffler
179-180 Head Temp
Merlin Long Glow plug

Starts easy one bump backwards and she is running
jds

RE: Thunder Tiger 120 Pro RPM numbers
 

TT 120 Pro side exhaust
87 degree
Hum - high
5% Cool Power synthetic
APC 16x6
OS No. 8

Peak at 10,500 RPM

Just prime her, she will start with a back flip of the prop!

RE: Thunder Tiger 120 Pro RPM numbers
 

10,500 rpm on a apc 16x6 sounds high. What muffler ?

RE: Thunder Tiger 120 Pro RPM numbers
 

Hi Can anyone recommend me a place to buy spares for these engines? thanks!