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Old Aug 16, 2014, 04:26 PM
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electriceddie's Avatar
Joined Feb 2013
33 Posts
Help!
ESM - P-51B Mustang -"Bald Eagle"?

Hi Guys,


I just wanted to get some opinions about using an OS Max 1.20AX engine in the ESM - P-51B Mustang -"Bald Eagle"?

I am also thinking of the DLE 30 Gas engine as an alternate engine. I have anew OS Max 1.20AX engine with about 8-10 runs on it. I would like to use this engine and not have to lay out another $300.00 if possible, it seems like such a nice engine & very powerful. I had it in a "U-CAN DO 3D -60" & it had unlimited vertical performance. However I don’t want the engine to be marginal.


************************************************** ****************

ESM - P-51B Mustang -"Bald Eagle"

Manufacture Specs:
Wing Span: Approx. 71”
Fuse Length: 62.3”
Wing Area: 6.11sq. ft
Wing Loading: 33 oz/sq. ft
Weight Approx.: 13.5lbs.
Engine: 1.08 2 cycle -1.20-1.50 4-cycle or 26CC gas
Prop Recommendation: (For OS 1.20) 16x8 or 15x10

************************************************** ******************



Would this OS Max 1.20AX engine with a - "J'TEC"-Radiowave In-Cowlmuffler, set up inverted, be a good choice? I don't want it to be marginal in where I need to run the engine at 75% to 100% full power just to keep the plane flying.

As per the specs, it says that the total airplane weight should come in at around 13.5 lbs. This is debatable...... I weighed out all the pieces of mine and mine came out to 15.4lbs. From what I have read in other threads this is in the same ball park as other ESM -P-51B planes.

Also if I go with the OS Max 1.20AX, I also need a recommendation for Prop sizes for this particular Warbird / Engine 1.20 OS Max setup. (If I choose to go this way)?

I have checked with OS, and OS Max recommends 16X8, 15X10. But I was looking for someone who may have a similar set up and which Prop Size, Brand & Type that worked well for them.


So what would you recommend? Go with the OS Max 1.20AX engine with a - "J'TEC"-Radiowave In-Cowl muffler? Or buy a new DLE30 size Gas engine; however keep in mind I do not want to sacrifice the plane but if the OS Max will fly it well, then Great…..


Thanks Guys
Ed
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Old Aug 16, 2014, 06:18 PM
Fox 1
RocketRobin's Avatar
Canada, AB, Calgary
Joined Jan 2013
479 Posts
Quote:
Originally Posted by electriceddie View Post
Hi Guys,


I just wanted to get some opinions about using an OS Max 1.20AX engine in the ESM - P-51B Mustang -"Bald Eagle"?

I am also thinking of the DLE 30 Gas engine as an alternate engine. I have anew OS Max 1.20AX engine with about 8-10 runs on it. I would like to use this engine and not have to lay out another $300.00 if possible, it seems like such a nice engine & very powerful. I had it in a "U-CAN DO 3D -60" & it had unlimited vertical performance. However I don’t want the engine to be marginal.


************************************************** ****************

ESM - P-51B Mustang -"Bald Eagle"

Manufacture Specs:
Wing Span: Approx. 71”
Fuse Length: 62.3”
Wing Area: 6.11sq. ft
Wing Loading: 33 oz/sq. ft
Weight Approx.: 13.5lbs.
Engine: 1.08 2 cycle -1.20-1.50 4-cycle or 26CC gas
Prop Recommendation: (For OS 1.20) 16x8 or 15x10

************************************************** ******************



Would this OS Max 1.20AX engine with a - "J'TEC"-Radiowave In-Cowlmuffler, set up inverted, be a good choice? I don't want it to be marginal in where I need to run the engine at 75% to 100% full power just to keep the plane flying.

As per the specs, it says that the total airplane weight should come in at around 13.5 lbs. This is debatable...... I weighed out all the pieces of mine and mine came out to 15.4lbs. From what I have read in other threads this is in the same ball park as other ESM -P-51B planes.

Also if I go with the OS Max 1.20AX, I also need a recommendation for Prop sizes for this particular Warbird / Engine 1.20 OS Max setup. (If I choose to go this way)?

I have checked with OS, and OS Max recommends 16X8, 15X10. But I was looking for someone who may have a similar set up and which Prop Size, Brand & Type that worked well for them.


So what would you recommend? Go with the OS Max 1.20AX engine with a - "J'TEC"-Radiowave In-Cowl muffler? Or buy a new DLE30 size Gas engine; however keep in mind I do not want to sacrifice the plane but if the OS Max will fly it well, then Great…..


Thanks Guys
Ed
Hi Ed,

Since this is the "electric" bit of the forum I'm going to suggest you use a Rimfire 1.20.

Cheers!
Rocket
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