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Search: Posts Made By: HNPower
Showing results 1 to 25 of 53
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Forum: Giant Scale Aircraft - 3D & Aerobatic
11-13-2006, 10:52 AM
Replies: 799
Views: 74,647
Posted By HNPower

RE: New BME Aircraft 30% Extra330L

I used the slimline wrap around muffler for maiden flight, couldn't wait. I'll find the correct header later. May be I'll get the KS header from DA like the one Ken used.
Forum: Giant Scale Aircraft - 3D & Aerobatic
11-13-2006, 10:35 AM
Replies: 799
Views: 74,647
Posted By HNPower

RE: New BME Aircraft 30% Extra330L

Test flew my Extra last weekend with the slimline wraparound muffler. Wow, this airplane is great 3D performer. Really like it, hovering and torque roll is really easy. In fact, it is easier than my...
Forum: Giant Scale Aircraft - 3D & Aerobatic
11-12-2006, 09:49 PM
Replies: 799
Views: 74,647
Posted By HNPower

RE: New BME Aircraft 30% Extra330L

Strange, I have a 25mm drop flex header and the MTW75 canister and I couldn't get the header to fit. It seems that the 25mm drop is too much. I measured the drop required for the MTW canister is...
Forum: Giant Scale Aircraft - 3D & Aerobatic
11-11-2006, 09:25 PM
Replies: 799
Views: 74,647
Posted By HNPower

RE: New BME Aircraft 30% Extra330L

xtraflyr, I have a MTW canister and a 25mm drop header. The header didn't fit. What header did you use, no drop with flex ? Anyone ?
Forum: Giant Scale Aircraft - 3D & Aerobatic
11-10-2006, 10:37 AM
Replies: 799
Views: 74,647
Posted By HNPower

RE: New BME Aircraft 30% Extra330L

Xtraflyr could you post picture of your engine and canister setup. Thanks
Forum: Gas Engines
10-12-2006, 05:59 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

Initially, I said "because when the prop is approaching supersonic speed, the air infront of it becomes so thin that it is barely going through the prop."
You know, I should have said that when the...
Forum: Gas Engines
10-12-2006, 03:51 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

With that huge of a prop, I bet the airplane can hover and do vertical takeoff. Looks like a F86 with turbine and they stick a prop up the nose for experiment. How fast was the top speed.
Forum: Gas Engines
10-12-2006, 03:30 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

Also, this explain why the tip of the prop has less pitch than the middle and at the root. It has a lot to do with the velocity.
Forum: Gas Engines
10-12-2006, 02:48 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

exactly, because when the prop is approaching supersonic speed, the air infront of it becomes so thin that it is barely going through the prop. Therefore, the airplane looses speed and eventually...
Forum: Gas Engines
10-12-2006, 01:31 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

It just occured to me that you misunderstood what I am trying to say. I said the prop going supersonic, not the airplane. If the airplane going supersonic, then it has to do a lot with airflow....
Forum: Gas Engines
10-12-2006, 01:24 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

The formula calculates the super sonic rpm at a specific radius of the prop. It has nothing to do with airflow. Just put in your radius for the prop you are using, the formula will approx the rpm...
Forum: Gas Engines
10-11-2006, 08:41 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

I came up with a formula to approximate the RPM when the prop reach speed of sound. Assuming the speed of sound is 346m/s at 75 degree temperature. RPM(supersonic)=3304/radius of prop in meter.
So,...
Forum: Gas Engines
10-11-2006, 12:12 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

I belived with the bme 27x10 prop and is about 6500rpm (will tach again to make sure). The prop noise is loud but I don't think that the prop is in supersonic. It is still pulling normal. No loss in...
Forum: Gas Engines
10-11-2006, 10:41 AM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

you can also get the PK prop from brison aircraft or Fox manufacturing. I forgot exactly who. But that's the prop I have on my 110. I'm thinking about what silversurfer said about let the engine rev...
Forum: Gas Engines
10-10-2006, 09:31 AM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

I used the BME 27x10 and it is turning at around 6200 rpm. This number seems to be in line with everybody else. In the air, it is sounded like the prop is ripping up really hard. I was wondering,...
Forum: Gas Engines
10-09-2006, 02:35 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

Thanks Danny, I'm making a copy of this PM for reference.
Forum: Gas Engines
10-09-2006, 08:58 AM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

I am resting my case at this point. I know I let things out of hands when I should just stopped awhile ago. Peoples have their own opinion. I should have just raised the issue to alert other user...
Forum: Gas Engines
10-07-2006, 04:25 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

the brison 3.2 engine uses sachs cylinder and has only 7 big fins. One can easily sees it from brisonaircraft.com. The DA50 cylinder has 14 big fins. My zdz 120 has 18 big fins on each cylinder. The...
Forum: Gas Engines
10-07-2006, 04:15 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

I'm not demand anything on here. It is a stupid way of demanding anything by raising a legid issue. If I want anything, don't you think I should disscuss it with BME. I just simply trying to raise an...
Forum: Gas Engines
10-06-2006, 08:18 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

Here it is again.
initially, I thought that you are just a bme rep that's why you are so quickly jumped to the defense and bashed anyone who posted the engine problem. Now I understand why....
Forum: Gas Engines
10-06-2006, 08:15 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

Here it is again.
initially, I thought that you are just a bme rep that's why you are so quickly jumped to the defense and bashed anyone who posted the engine problem. Now I understand why....
Forum: Gas Engines
10-06-2006, 07:44 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

at least i'm not affraid to admit when I'm wrong. Not like some spy for bme. At first, I thought you are just a rep. Now I know you are worst, either a kiss ass or spy.
"Understanding the owner of...
Forum: Gas Engines
10-06-2006, 06:42 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

I stand corrected, tungsten is used in other part of the engine. Not cylinder. Sorry.
Forum: Gas Engines
10-06-2006, 02:45 PM
Replies: 177
Views: 19,809
Posted By HNPower

RE: BME 110 Xtreme first impressions

you said use different oil other than amsoil - i said - I'll try that.
you said allow the engine to rev up - I'll do that too.
you said adjust the engine rich - I said i'm not touching the needle...
Showing results 1 to 25 of 53
 
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