Engine for a small pattern plane....
11-14-2007, 09:40 AM
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Engine for a small pattern plane....
Hi guys, i have this Magnum 25 PRO ABC, and i wonder if it will be a nice engine for a small pattern plane, like a Curare .20, a small tiger tail or another hot plane?. Also i have a 20 size tuned pipe for it...
thanks for the advice
thanks for the advice
11-14-2007, 11:12 AM
#2
RE: Engine for a small pattern plane....
stg61abc,
It should work VERY well. The .25/.28 was the ticket before the .32's hit the market. I still have my OS .25F abc from the 80's. It pulled my Sun-Fli 4-20 around very well with just a muffler. The pipe should be even better.
turbo
It should work VERY well. The .25/.28 was the ticket before the .32's hit the market. I still have my OS .25F abc from the 80's. It pulled my Sun-Fli 4-20 around very well with just a muffler. The pipe should be even better.
turbo
11-14-2007, 02:34 PM
#4
RE: Engine for a small pattern plane....
stg61abc,
I used 8x8, 9x5, or 9x6 props on my 25. I used 10% nitro and stock muffler and liked the 9 x 5 the best. I later found a muffler that had slightly more volume and allowed 900 rpm increase using the same fuel as above. I liked the 9 x 6 after that. The 8 x 8 was for speed applications. It (8x8)would take a little longer to get off the runway, but was noticeable faster in flight and very quiet. I hope you enjoy the 25 as much as I did/do..
turbo
correction( edit)
I used 8x8, 9x5, or 9x6 props on my 25. I used 10% nitro and stock muffler and liked the 9 x 5 the best. I later found a muffler that had slightly more volume and allowed 900 rpm increase using the same fuel as above. I liked the 9 x 6 after that. The 8 x 8 was for speed applications. It (8x8)would take a little longer to get off the runway, but was noticeable faster in flight and very quiet. I hope you enjoy the 25 as much as I did/do..
turbo
correction( edit)
11-15-2007, 12:40 AM
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RE: Engine for a small pattern plane....
ORIGINAL: stg61abc
Hi guys, i have this Magnum 25 PRO ABC, and i wonder if it will be a nice engine for a small pattern plane, like a Curare .20, a small tiger tail or another hot plane?. Also i have a 20 size tuned pipe for it...
thanks for the advice
Hi guys, i have this Magnum 25 PRO ABC, and i wonder if it will be a nice engine for a small pattern plane, like a Curare .20, a small tiger tail or another hot plane?. Also i have a 20 size tuned pipe for it...
thanks for the advice
DM
11-15-2007, 06:39 PM
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RE: Engine for a small pattern plane....
I recently scored a MVVS 25 redhead configured for rear exhaust, pipe included. Am going to run him in a Sunfly 4-20 whenever I get around to him.
11-15-2007, 11:57 PM
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RE: Engine for a small pattern plane....
Dave
A 20 size Tipo would be Killer! [X(] Have you ever done any work to scale that down. It seems that anyone can think it, you have plans for it somewhere.
And how do you organize/locate all of them??
DM
A 20 size Tipo would be Killer! [X(] Have you ever done any work to scale that down. It seems that anyone can think it, you have plans for it somewhere.
And how do you organize/locate all of them??DM
11-16-2007, 11:39 AM
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RE: Engine for a small pattern plane....
Hello,
I used to have two OS .25RC's . They always ran great with 9 x 4 and 9 x 6. I used one of them about two to three days /week, during 4-5 years, while the FSR's were more powerfull, but had more weight as well.
Steven
I used to have two OS .25RC's . They always ran great with 9 x 4 and 9 x 6. I used one of them about two to three days /week, during 4-5 years, while the FSR's were more powerfull, but had more weight as well.
Steven
