ossie

Just logged 200 flights on my Magnum.
For anyone interested in speed planes I can recommend the Magnum, a rock solid flyer, and boy, does that West 50 sing a mean tune...........
As you can see in the pic I recovered her in bright orange Profilm with black trim, much easier to see. The original covering lasted around 30 flights.
Cheers
Ken

ossie

Here's a couple of other projects I'm working on
The ES will have its maiden in a couple of weeks, hopefully around Oct for the L39.
Cheers
Ken

Dave03B

I took your advice on making my magnum dolly steerable. i'll take a pic later and post it here.

cheers
Dave

ossie

Dave,
Another tip........ Instead of using dowls on the front, I used 1/8th steel rods covered with clear tube and bent them inwards onto the fuse acting like a clamp (only softly though). If you have a bumpy strip you may want to consider this option also. The first couple of lanuches I had the Magnum bounced off the dolly prior to VR speed. This method has worked perfectly for me for last 12 months. Can post some more pics of the dolly if you want.
Got another 6 flts in today............
Cheers
Ken

Dave03B

yes, please post more!!

although SJN will tell me i dont need a dolly!

ossie

Yep will do.
Hand launching.....thats for park flyers............

Dave03B

heres mine

ossie

Nice Job Dave, here's some more pics
Cheers
Ken

Dave03B

[sm=thumbup.gif]

SJN

hehe, the dolly is a great idea.

I have experience in launching tons of electric planes, and am comfortable with launching the magnum by hand.

ossie

Just bought myself one of these..ALFA Models MIG15..to fly in the paddock down the end of my street. Its my first electric model in 35years of aeromodelling.....
So I guess I'll get plenty of hand launching practice soon.
Cheers
Ken

Dave03B

what sort of AoA is your magnum sat at on the dolly?

ossie

Not quite sure I didn't measure the AoA. At a guess, its around +5deg.
Looking at your pics the AoA looks about the same on both dollies.

Dave03B

yep, thats what i thought....well, i can adjust it, just give the u/c a little bend

CFII1974

My Feedback: (5)

congrats on 200!

Dave03B

does anyone have any good quality magnum inflight shots????????

Douglashimself

My Feedback: (1)

I am interested in buying a Magnum but can't seem to find a web site. Could anyone post one.

Thanks

DH

Isaac F

Hey guys, I was thinking on doing the dolly with steering but just the servo on the dolly and with the servo wire conector conected by a servo extension to the same receiver inside the Magnum and when the airplane get airbone the wire get disconected..............I think I need to use some type of servo extension that disconected quickly without to much force
What you thing of this idea...............Any sugestion???

Dave03B

I've seen this done on a DF plane the bloke hooked the "dolly servo" up to a jack plug on the dolly, which the the jet sat on which completed the "wire" and allowed the signal to pass to the servo from the same rx. when the plane lifted, the jack plug came away from the jet and stayed on the dolly. looked pretty neat. i would not know totally how to do this, but other may know what i'm babbling on about

Dave03B

http://www.modellbau-usa.com/Magnum.htm
on back order though over. Is it worth/possible to order from the uk? theres plenty floating about in shops over here[8D]

ossie

G'day Isaac
Yep, that will work with a little modification to the fuse. You don't want the lead/plug hanging of the fuse when landing.
Cheers
Ken

Dave03B

so just have the extension lead method?

ossie

Personally........No I wouldn't do it that way, for 2 reasons.....
1. Too much work
2. I get a lot of oil around the rear of the fuse including the bottom. Having a hole in the fuse increases the risk of ripping the covering (on landing) and eventually you'll soak the rear with oil.
Cheers
Ken

Dave03B

so our way is ok

jlindqui

So I just ordered my Magnum and plan on using a YS45 I've got laying around the house. Does anyone have a prop recommendation? I have not yet tuned the pipe on the 45, so this is still up for grabs. The motor is rated to 18,000 RPM, and I was thinking of the APC Pylon 8.75x8.75 or 8.75x9 since I can't get the RPM as high as the West. Also, I've noticed that APC makes a wide and a narrow prop, so any recommendations on this? Lastly, I'm a bit nervous about landing this puppy. Any techniques / tips?

Thanks!