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Old Nov 06, 2005, 09:33 PM
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turbonut's Avatar
upland CA
Joined Dec 2004
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As I read it the highest speeds for each are approx.
mark 1 fan just under 70 mph
mark 2 fan 80 mph
4s2p 4200 90 mph
I wonder just how much the big dog can push this airframe.
I still love the looks of the huck.But maybe we need a mig for utmate high speed Alfa jets
Scott
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Old Nov 06, 2005, 09:38 PM
SoCal, Year Round Flying!
bmiller's Avatar
Newport Beach, CA
Joined May 2002
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Maybe I should move my MiG to the top of the building queue!
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Old Nov 06, 2005, 10:46 PM
Watts your motivation
roccobro's Avatar
San Bernardino, CA
Joined Aug 2003
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Scott- It was just a 4s1p 1320 pack, (2) 2s packs plugged into the ultra adapter. I don't think the heavier 4s1p PQ pack would be of any better performance, but 4s2p PQ pack would be needed for the 16/7/3 on 4s run! (11 oz's vs 4.2) The next step should be the lighter 16/7/4 on the same 4s to realize almost an ounce less motor weight.

Bruce- Let me know when your ready.

Justin
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Old Nov 06, 2005, 11:17 PM
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upland CA
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O yea !! I think we need to add up the weight with the big packs. I wonder about the wing loading? and will they fit under the canopy?
S
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Old Nov 07, 2005, 12:45 AM
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Newport Beach, CA
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So you guys test the 4s2p 16/7/3
and I'll test the 4s1p 2025/5300
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!sweet !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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Old Nov 07, 2005, 02:30 AM
MORE POWER IS THE KEY
Paul DF jet man's Avatar
South Australia
Joined Jun 2004
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wing loading wont be a problem i have a mate that flew his alfa mig 15 on 3s 4000 mlh lipos weighing 400 grams alone RTF weigh must have been about 800 grams.

he isnt a very light builder.
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Old Nov 07, 2005, 12:32 PM
Watts your motivation
roccobro's Avatar
San Bernardino, CA
Joined Aug 2003
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I don't think the canopy will like it. It is taller than the 4s 1320's we used. THe PQ1800's are 5.5oz/pack and the smaller 4s 1320's are 4.2oz. I'd love to get a couple more 2s 1320's to make the 4s2p fit better and save us 3 oz's!! Haven't made it to the blood bank yet though....

Justin
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Old Nov 07, 2005, 12:34 PM
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Tumbler's Avatar
New Jersey
Joined Feb 2003
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any place yo can buy the rotors seperate for the alpha fas dons. Also i see you guys do a GWS mod? what is that?

Thanks,

Brian
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Old Nov 07, 2005, 12:37 PM
Watts your motivation
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San Bernardino, CA
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Brian- Euromodels is where I buy mine. Shipping is $10aAUS though even on just a $16 rotor. The GWS mod is a a trimmed down EDF-64 rotor with every other blade removed.

Justin
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Old Nov 07, 2005, 12:50 PM
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New Jersey
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Quote:
Originally Posted by bmiller
So you guys test the 4s2p 16/7/3
and I'll test the 4s1p 2025/5300
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!sweet !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
my buddy and i tried the 4s on the 5300....motor didn't last long.
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Old Nov 07, 2005, 12:51 PM
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New Jersey
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Quote:
Originally Posted by roccobro
Brian- Euromodels is where I buy mine. Shipping is $10aAUS though even on just a $16 rotor. The GWS mod is a a trimmed down EDF-64 rotor with every other blade removed.

Justin
thanks Justin.....is it a major power difference?

Thanks

Brian
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Old Nov 07, 2005, 01:13 PM
Watts your motivation
roccobro's Avatar
San Bernardino, CA
Joined Aug 2003
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I have not tested it so cannot comment. The user with the original idea was getting 20+ oz's of thrust istalled. I'd like to verify that as it is a very easy, light and cheap mod (comes with a setscrew hub too!).

Did the 5300 on 4s have a heatsink? I got my maxprod EDF HS trimmed enough to fit all the way into the motor tube. Should help alot. But I gues when your pushing TWICE the max current something might give.

Second one down:
http://www.maxxprod.com/mpi/mpi-29b.html

My Sink:


Justin
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Old Nov 07, 2005, 01:22 PM
SoCal, Year Round Flying!
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Newport Beach, CA
Joined May 2002
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Quote:
Originally Posted by Tumbler
my buddy and i tried the 4s on the 5300....motor didn't last long.
Yeah, but was it fast!
I have a heatsink on mine w/cooling holes drilled at the front corners of the fan motor mount and no rear motor cover piece. It really screams on 3S
(rpms sounded as high as the 4200 on 4S)
Do you think it will last 1 flight?
Anybody know the ampdraw of the 2025/5300 on 4S?
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Old Nov 07, 2005, 01:30 PM
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New Jersey
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Quote:
Originally Posted by bmiller
Yeah, but was it fast!
I have a heatsink on mine w/cooling holes drilled at the front corners of the fan motor mount and no rear motor cover piece. It really screams on 3S
(rpms sounded as high as the 4200 on 4S)
Do you think it will last 1 flight?
Anybody know the ampdraw of the 2025/5300 on 4S?
Justin,

no didn't have a heatsink.

couldn't tell if it was fast because if was after my buddy crashed his mig and just chucked it to see if it ould fly with no nose, like half a wing, tail crooked, etc. battery was just taped on the front with it hnaging all the way out haha. It was screaming i know that. i bet you would do 100mph or a little more. Only ran it for a little while, not even a whole flight and my buddy said the motor didn't seem right after that.

not the best test, so for $50 i say its worth a shot. go for it if you can fit it!

brian
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Old Nov 07, 2005, 01:42 PM
SoCal, Year Round Flying!
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Newport Beach, CA
Joined May 2002
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ROTFLOL,
I wish you had video of that flight!!!!
I'm going for it!
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