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02-27-2010, 09:53 PM | #11 |
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Re: TF P-51d Mustang power plant
I've had a couple mustangs on Saito 100's. To me, its the best choice because with a 3 blade prop you get excellent landing capability due to the extra torque along with awesome performance that isn't over the unrealistic barrier. Both the TF and the Hanger 9 versions I have had were excellent with the Saito. You won't be sorry.
Dale
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03-01-2010, 09:19 AM | #12 |
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Re: TF P-51d Mustang power plant
65 LA is probably the weakest engine you could use to fly that plane. Still, if you have no other options, you can use it provided you build very light with no additional weight of retracts/flaps etc.
Remember, the LA is bushed and does not develop the same power of an equivalent sized bearinged engine. You can offset this (a little) by using higher nitro fuel- 15% or 20% will make an improvement. Flying with the LA, You would be on the low end of the flight envelope and would probably have long take-off runs. Once airborne you should be OK. Be careful on landing approaches, you might not want to go all the way to idle, but instead fly it in at at 1/4 or 1/3 throttle. If you have the $$ an can afford a new engine, for 2 strokes the 75AX would be an ideal choice, or 90 if you wanted it to scream along. For 4stroke, consider an OS91 (but they are a bit pricey) or there are some other 91 four strokes that are less expensive that will also do the job. Good luck with your build! |
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03-03-2010, 06:18 PM | #13 |
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Re: TF P-51d Mustang power plant
The plane is the Top Flight Gold Edition ARF which comes with the mechanical retracts, and I never got to build it from the ground up (obviously), so I'm not sure how heavy, too heavy is. Again this is my first large scale plane. I'm used to flying 40-60 size aircraft.
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03-03-2010, 08:01 PM | #14 |
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Re: TF P-51d Mustang power plant
If your flying a 60 size plane, you will have no regrets of putting a 90 2stk on it. You will be thankfull you have the extra power. As you become comfortable with the plane...again you will be happy you have more power.
Better to have more power and not need it than to have too litle power and wish you had more, as the plane is brought to a dead stop in a 10k head wind. That 60 you have wont work well at all!! in a 60 size warbird. Keep it though, and put it on a 40 size plane. Getting the idea 40=60 60=90 90=120 excetera excetera etc Trev Last edited by Guest; 03-03-2010 at 08:05 PM. |
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03-04-2010, 07:42 AM | #15 | |
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Re: TF P-51d Mustang power plant
Quote:
That clears things up a bit. I am curious to know what you plan on doing in the end. While the plane CAN probably fly OK with the LA, an engine with a little more power would be beneficial. If you aren't able to afford a new motor, you don't have much choice I guess. Show us some pictures when you get things sorted out. Cheers! |
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03-04-2010, 08:11 AM | #16 |
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Re: TF P-51d Mustang power plant
I have a Saito 125 in mine and it really is more power than needed. You have to be carefull on takeoff to advance the power slowly or it will jump off the ground in 5'.
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03-04-2010, 08:40 AM | #17 |
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Re: TF P-51d Mustang power plant
The 65LA will be a little light on power as mentioned earlier. The OS .75AX would fit the bill but is a little high priced for a .75.
Another option for a 2 stroke, would be the GMS .76.... contrary to what some people will tell you, they are fantastic performing engines and quite a bit cheaper than OS also. Another 4 stroke option,(which I believe a warbird deserves) would be the TT .91 4st... I am running one of these on my Phaeton 90 Bipe and it works great. There is a new one for sale here on RCC right now at a super price... may be worth a look https://www.rccanada.ca/rccforum/showthread.php?t=101529 Cheers Curt
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03-04-2010, 10:58 AM | #18 |
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Re: TF P-51d Mustang power plant
Bottom line is NO! The 65LA does not have enough power to fly that plane. I fly warbirds! Not trainers. If you put that engine in your plane you will also be looking for a new plane aswell as more powerfull engine. Chuebner has made some good recomendations. You might concider that route.
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03-04-2010, 11:09 AM | #19 |
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Re: TF P-51d Mustang power plant
I'm looking at planes like a 182 Cessna, but they all seem to have power ratings from 60-90 or 40-50. Is it safe to ram the 65la into a 40? I've always stayed within the power ratings on planes and heli's cause I don't want to overpower them and break them mid air. I'll take a look at the TT .91 but I think I may end up with a Saito 1.20. Not sure yet.
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03-04-2010, 05:24 PM | #20 |
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Re: TF P-51d Mustang power plant
My Buddy just maidened his 40 size Mustang from Will Hobbies, with an OS65 on it. He flew it today for the first time and said it was great. I used to have the H9 PTS Mustang with an OS 55 on it and it was a fantasic plane.(my first) There's nothing wrong with having more power so long as the waight of the engine doesnt become a problem with the CG of the plane. For intance if you have to add waight to the tail to counter a Heavy engine...then youve gone to big. If your going to go with the Cessna type of AC, A 65LA on a Cessna would probley fly ok. But on a Warbird it would be very very weak.
Do you know how to fly Now? How much flying experience do you have. What is the wing Span of the mustang. Trev |
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