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Search: Posts Made By: Larry Legg
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Forum: RC Jets
08-20-2007, 07:46 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

I got a leaf blower at a yard sale for $10.00. I direct the air flow on the pipe and the engine head. I have been able to tune the engine with a pusher prop and not overheat.
Forum: RC Jets
06-21-2007, 07:38 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

I have a set of spring air 305's that I am going to mount in a retract ready Bobcat 50. The main gear will fit fine. However, the nose gear will need some mods to work properly. The rail is set for...
06-15-2007, 06:16 AM
Replies: 14
Views: 2,194
Posted By Larry Legg

RE: Jet pusher landing main gear

I have a set of spring air 305's that I am going to mount in a retract ready Bobcat 50. The main gear will fit fine. However, the nose gear will need some mods to work properly. The rail is set for...
Forum: RC Jets
06-09-2007, 07:48 AM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

I am wondering if variations in the manufacturing process of the ARF is leading to a different angle of incidence of the stab and wing. Does anyone that is achieving great flight performance have a...
Forum: RC Jets
06-02-2007, 07:31 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

I finally got mine finished. I will need to wait until I get my trailer fixed to maiden it--it won't fit in my car. Hopefully the weather will be good next weekend.
Forum: RC Jets
04-01-2007, 08:50 AM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

Can this be achieved by adding downward thrust to the engine?
Forum: Glow Engines
03-06-2007, 06:27 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

I just got around to tuning this engine on a 10cc pipe. Following Clarence Lee and K&B method of tuning I was able to get 15,800 out of the engine. That is with a 10 x 7 prop. I will be flying a 10 x...
Forum: RC Jets
03-06-2007, 06:22 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

The guy from Mac Products said he is working on a "candy cane" that would turn the exhaust 180 to the back of the plane. He should have it ready in 3-4 weeks for about $30-$40.
02-17-2007, 06:57 PM
Replies: 21
Views: 3,013
Posted By Larry Legg

RE: Best engine for a Bobcat 50

I took a friends advice and went to the source (Clarence Lee) about the Modified K&B .61 ringed engine I bought from him.
I got a response back from Clarence Lee about the K&B .61 he sold in a...
Forum: Glow Engines
02-17-2007, 06:53 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

I took a friends advice and went to the source (Clarence Lee) about the Modified K&B .61 ringed engine I bought from him.
I got a response back from Clarence Lee about the K&B .61 he sold in a...
Forum: RC Jets
01-13-2007, 06:26 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

Angus,

Great craftmanship!

Please continue to post more pictures of your build. I want to learn from a master.
Forum: RC Jets
01-13-2007, 03:51 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

Would it make scense to position the tank right at the CG? That way full or empty the CG remains consistant...or am I missing something.
Forum: Glow Engines
01-11-2007, 05:04 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

I also saw in the K&B parts list a counter-rotating crank. Is changing the crank to a counter-rotating crank all that is needed for the engine to run backwards? The Bobcat is a pusher plane and the...
Forum: Glow Engines
01-11-2007, 01:52 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

Thanks Mike,

Good information that I was looking for! I want to use this for speed so I will look into replacing the crank and rod. What pipe and prop would you suggest?
01-09-2007, 10:15 PM
Replies: 21
Views: 3,013
Posted By Larry Legg

RE: Best engine for a Bobcat 50

Thanks for all the info. I think before I go out and purchase a tower .75 I will try a pipe on the K&B .61 and see what RPM's I get. If I can get 13,000 to 14,000 out of the engine--I might stick...
Forum: RC Jets
01-09-2007, 09:59 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

Has anyone tried to install mechnical retracts on the Bobcat?
Forum: Glow Engines
01-09-2007, 09:54 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

Thanks for all the info. I think before I go out and purchase a tower .75 I will try a pipe on the K&B .61 and see what RPM's I get. If I can get 13,500 to 14,500 out of the engine--I might stick...
Forum: RC Jets
01-08-2007, 07:30 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

I just got an email back from the guys at Performance Specialties about the use of an exhaust deflector to avoid the pressure problem from the exhaust facing forward. They suggested using a copper...
Forum: RC Jets
01-07-2007, 07:49 PM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

AGR413

Great review on the Bobcat 50.

I have a question.

My brother saw you and asked a few question at the January 1st fun fly (I grew up in Mesa, Az). You said you were having...
Forum: Glow Engines
01-07-2007, 03:43 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

Would putting a pipe on the Tower .75 be worth trying...or would I not gain that much power? I know that some engines can't handle the stress it puts on them.
Forum: Glow Engines
01-07-2007, 03:11 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

I am still doing R&D to find out what works best so please give details on any coments and responses.

These two posts are why I am leaning toward the .91:

...
Forum: Glow Engines
01-07-2007, 12:42 PM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

I think I have been sold on either a Tower .75 or (if I can afford it) an OS .91. The .91 is $100.00 more but I am hearing that it will scream. I think it is not that much heavier than the Tower .75.
01-07-2007, 12:39 PM
Replies: 21
Views: 3,013
Posted By Larry Legg

RE: Best engine for a Bobcat 50

I have been sold on either a Tower .75 or (if I can afford it) an OS .91. The .91 is $100.00 more but the post I am seeing say it will scream. It is not that much heavier than the Tower .75.
Forum: Glow Engines
01-06-2007, 09:32 AM
Replies: 66
Views: 17,531
Posted By Larry Legg

RE: Clarence Lee Modified K&B .61 engine

Sorry about the multiple post...I was just trying to get an opinion about the tower .75 engine in relation to the K&B .61. I should have just continued that in this thread.

My mistake
Forum: RC Jets
01-06-2007, 07:05 AM
Replies: 4,015
Views: 629,490
Posted By Larry Legg

RE: Nitro models pusher Bobcat?

Which engine gives the best bang for the $$$?

I have a Clarence Lee Modified K&B 6550 .61 engines which should get me about 12,000 RPM with a 11.5x7 prop ($135.00). A tuned pipe could raise the...
Showing results 1 to 25 of 53
 


 
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