anders.stenhammar84@gmail.

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About anders.stenhammar84@gmail.

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anders.stenhammar84@gmail.'s Activity

  1. anders.stenhammar84@gmail. added a post in a topic Hatrack Avid Flyer   

    Done some improvements today. Getting ready for a cross country trip next weekend.
     


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  2. anders.stenhammar84@gmail. added a post in a topic Hatrack Avid Flyer   

    Ok I will do some W&B and aim for 18" CG. I have noticed that it lands better when I have weight in the cargo. 
    I remodeled the hat rack today to get more space. I removed the plates and made a sling shelf that goes down just above the flaperon mixer. My dog is much happier with the bigger headroom. Now I need to unhook the ailerons when folding the wings. But with castle nut and a key ring, that's just fine.

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  3. anders.stenhammar84@gmail. added a post in a topic Hatrack Avid Flyer   

    What about the C/G when loading a bunch so far back in the fuselage? What max weight did you fly with in your B model? I have a C model and I am Always goping ower max gross when having passenger and full tank and some cargo. I fly carefully then and not pulling any G and baking not more than 30 degrees in level flight. But it would be nice to hear what others have survived , LoL.
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  4. anders.stenhammar84@gmail. added a post in a topic Upgrades to my Mk4 Speedwing   

    Nice work! Like the strut fairings, I am also planning to do them. You said 120moph, thats awsome. I am working on a pair of aerobat wings for my Mod C STOL fuselage and exited to know what I will expect in performance. At what weight do you get 120mph? Is it a Rotax 582 and what max rpm do you get at climb? 
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  5. anders.stenhammar84@gmail. added a post in a topic Hatrack Avid Flyer   

    Made a shelf for our dog Molly,she  didn't like the sloping hat rack. I just taped together two lexan plates that folds out and fits on to the hat rack line a shelf. Molly loves to fly and always wear a safety belt and ear muffs. 

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  6. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    Finished painting my cowling now, happy with the result. It's a quick fix so it's ok. I will try to tape if the two holes under the prop and get a spinner also, guessing that will do some drag reduction also.  

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  7. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    Now I have removed the side mount in stainless steel parts and the side radiator cowling to loose more weight and drag. Doing some flight tests and haven't noticed any big difference but I am still happy to loose the weight and the ugly cowling.
    Now it's time to sand the fiberglass sheet and paint it. Some day I might do a proper job instead of the riveting. 
    I also bought a GSC 3 blade 66" prop and are wery happy with it, even though it was a pain to adjust the pitch. I had to use my smartphone with an leveling app that that 0.1 degrees resolution. 0.1 degrees at 24" out from the hub gave me about 200rpm. I set it on 6100 max static rpm and that gave me 6500rpm at climbing. Spark plugs got a light chocolate brown colour.
     

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  8. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    So great success! The belly radiator performed really good! Today's flight test had ambient temp at 16C/60F. climbing 1200fpm at 50mph and still only 75C/167F water temp! But, at cruise the temp went down to 60C/140F. I think that the next step would be to install a thermostat. 
    I am very happy about this. I managed to reduce the empty weight more than 5kg/11lb of radiators, hoses and water. I also got the CG further back. 
    I noticed a higher cruise and more efficient elevator and lower stall speed! This forum is great!
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  9. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    So now I have installed the belly radiator and removed the side radiator. I will test it this weekend. The right hose from the engine top has a T connection for the expansion bottle that also has a pressure filler cap on it. If this is not enough cooling I will mount  the rotax912 oil cooler parallel with the belly radiator. Hopefully that's not needed. 

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  10. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    Very nice information. I actually have one of those radiators on the shelf from an other aircraft. I will mount it and see how it goes. Just need to buy some hoses. But does the hoses go straight up to the engine or is there any filler neck cap on the way?
     
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  11. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    So now I have removed the small radiator and the WT is up at 80C at 20C ambient. 2kg lighter at the nose and a better flying aircraft. At climb I reached 90C. I guess next step would be to replace the side radiator with a belly radiator.
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  12. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    My ambient temperatures are around 20C 68F. I think that the dual nose radiators would work fine if they had proper duct to lead the airflow and make use of the ram air pressure drop and consequently cooling effect. I have seen the old single mod C radiator work fine tighter with proper ducting. I will try to block the front radiator of after testing my water temp sensor in boiling water. My Kane was build in Italy and it's hotter there, so I guess the dual system as needed there.
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  13. anders.stenhammar84@gmail. added a post in a topic Dual radiator?   

    Yes, to primarily save weight but also to get the CG further back. I only get about 60C /140F in water temp. When I cover up the front radiator it doesn't get any hotter, so the water pump is pumping around a lot of unnecessary water. 
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  14. anders.stenhammar84@gmail. added a post in a topic New float plane needs a 670   

    How did your Rotax Rick 670 work out for you? I think I will need one also when my 582 has done it's time.
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  15. anders.stenhammar84@gmail. added a topic in Avid Model C   

    Dual radiator?
    Hi all. My Avid 582 mod C has two radiators under the cowling. One smaller in front of the cylinders and one bigger at right side (extra cowling on the outside). This system is quite heavy and I would like to reduce it. I know about the mod about mounting a new radiator under the belly I front of the landing gear, but this is to big if a mod for now and I also don't want to loose the cabin heat system from the side mounted radiator. 
    I was thinking about removing the front radiator, has anyone else done that? Does anyone else even have two radiators? On my T-bird2 I only had one radiator and that was enough. On the other hand, the side mounted radiator isn't that efficient as a front mounted one... I guess I just try to remove the front one and see what happens to the water temp.
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