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Search: Posts Made By: 1976kjell
Showing results 1 to 25 of 30
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Forum: Aerodynamics
04-22-2011, 10:53 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Yes, the cub flew better. Im quit sure that all the changes i did got an effect to the performance. I did land the cub without using the flaperons, and it landed slower anyway.

I trained with the...
Forum: Aerodynamics
04-18-2011, 04:21 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Yes, he keeps the nose down too long, but thats maybe typical a Goldberg Cub, it may be difficult to land it other ways. Maybe Im wrong.

I just got my cub ready to fly, after doing different...
Forum: Aerodynamics
04-17-2011, 03:03 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Well, it could be many reasons, but my vision is like this:

The Cub behaves as it behaves; oftenI plan to land in the start of the airstrip, but the plane almost lands on the end of the strip. The...
Forum: Aerodynamics
04-09-2011, 02:12 AM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Testing the plane in high altitude when trying flaperons isobvious :)
Forum: Aerodynamics
04-08-2011, 11:21 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Often a tailheavy plane is worse than a noseheavy plane, a plane which is slightly nose heavy is often more stable than a plane which has the tail down.
The old rule is that a plane should have the...
Forum: Aerodynamics
04-08-2011, 02:01 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Off course its possible to learn the slip, but if it can be done an easier way, thats better ;)

Yes, my radio (as most of the todays radios) can be programmed to use the spoileron (or flaperon),...
Forum: Aerodynamics
04-08-2011, 12:38 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Slowing the plane down is just what Im trying to do, doing som modifications in the set up

Two reasons why its going to fast can be to high pitch on the prop and maybe a bit too much weight in the...
Forum: Aerodynamics
04-08-2011, 09:50 AM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

30% from leading edge may include some more weight in the tail compared to the balance which the plane have now</p>
Forum: Aerodynamics
04-08-2011, 08:46 AM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

Just picked up propellers with large diameter and low pitch.

In addition to try flaperons, It could be an idea to give the cub a bit more weigth in the tail, to increase AOA (angel of attack I...
Forum: Aerodynamics
04-08-2011, 03:04 AM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

I havent written that the The OS 91 FX  will get it easier to land, but  in reality its a bored 61 engine, and its lighter. Using a low pitch prop will reduce the speed. The power when these engines...
Forum: Aerodynamics
04-07-2011, 04:07 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

RE: Flaps or flaperons?

The plane had an OS 61 SF earllier, but soon Im gonna mount an OS 91 FX, and yes of course, Im gonna use a prop withextra lentgh and low pitch, as already planned

Actual props may be APC 13x6,...
Forum: Aerodynamics
04-07-2011, 01:38 PM
Replies: 50
Views: 7,071
Posted By 1976kjell

Flaps or flaperons?

I have a really old goldberg cub with standard ailerons. Ive experienced that is a bit hard to land, often the plane passes the airstrip in speeds thats to fast for landing.

Im may gonna make one...
Forum: Glow Engines
02-27-2011, 11:27 AM
Replies: 3
Views: 773
Posted By 1976kjell

RE: A new Super tigre 3250

Look forward to use it, hope it works well. Im gonna do the break in with the engine mounted on an engine stand and the first plane the engine will be used in is a 1/4 scale great planes giles 202.
Forum: Glow Engines
02-25-2011, 12:49 AM
Replies: 3
Views: 773
Posted By 1976kjell

A new Super tigre 3250

I just got a new super tigre 3250 engine, hope it will run as it should :)

The drive washer which a prop or spinner bacplate is tightened against when a prop is mounted has 2 spikes. Its to hold a...
Forum: Glow Engines
02-24-2011, 04:49 PM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

Just got the replacement needle valve and the bracket indirectly from Tower Hobbies. Now its just to find time to assemble it and try to run the engine :)
Forum: Glow Engines
01-10-2011, 11:26 AM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

Off course, I will try to get the engine run well without a pump first, I hope and guess that will be easy with the new needle valve assembly.

But I will also buy a perry pump and have it as a...
Forum: Glow Engines
01-09-2011, 01:18 PM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

Maybe a perry pump also will help :)

Never used a pump in my planes, but that will maybe be a nice solution, not in just my case, butin many other casesif an engine isnt running as it should.
...
Forum: Glow Engines
01-09-2011, 12:07 PM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

I worked with the tank and fuel lines many times, so a hole like that, I should have disappeared :)

Anyway, the plane is crashed and gone, so its impossible to check</p>
Forum: Glow Engines
01-09-2011, 11:00 AM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

Ive been searching this forum and other forums for problems with OS 91 FX, the reasonis probablyheat transfer or air leak. If I order a new needle valve assembly, that will solve both...
Forum: Glow Engines
01-09-2011, 06:49 AM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

I saw the "canadian style"-video, cool!
Forum: Glow Engines
01-09-2011, 05:34 AM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

The flying season hasnt begun yet, so Ill wait :)

Here in Norway, its winther with snow and cold weather.

I have begun to do my planes ready for the flying season now, so a bit waiting for the...
Forum: Glow Engines
01-09-2011, 05:12 AM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

Ive thought that thishex bolt may be a possible reason many times

I unscrewed it now, and it wasnt any "O-ring" there.

Im gonna order new needle valve assembly anyway :)
Forum: Glow Engines
01-08-2011, 07:05 PM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

An email is sent to tower hobbies, but I dont think this will help

They dont sell the engine anymore and it is bought in Norway

But it is worth a little try :)


I found this :...
Forum: Glow Engines
01-08-2011, 01:42 PM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

I have a 7D carb, but I guess the 60F, the original carb,will work good if I find the fault, probably by cutting of the needle valve assambly :)
Forum: Glow Engines
01-08-2011, 01:15 PM
Replies: 41
Views: 6,779
Posted By 1976kjell

RE: OS 91 FX problem

The low speed needle valve has been adjusted many times, which didnt solve the problem
Showing results 1 to 25 of 30
 
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