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GP Christen Eagle engine

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GP Christen Eagle engine

Old 11-03-2003, 09:21 AM
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GoldenEagle
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Default GP Christen Eagle engine

I'm shopping for an appropriate engine for the Eagle and am wavering between the DA 50 and the ZDZ 60. Perhaps biplane / ZDZ guru Dick Hansen could offer some advice. Is the ZDZ60 too much engine for this A/C? I feel sure that the plane will come in at the higher listed weight of 18# with a smoke system and a 50 - 60cc engine. The DA50 is lighter and would surely fly the Eagle well but this seems to be a lot of airplane for that motor if you really want it to perform. Opinions before I order something this week?

Thanks,
Chris
Old 11-03-2003, 11:33 AM
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deputydog
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Default RE: GP Christen Eagle engine

I had no problems with performance of the DA-50 in my 19# 31% Edge. And it was still in the breakin preiod. Considering what GP shows for engine installation, I guestimate that my CE w/DA-50 will be about 17#. The 60 may be a bit much. A DA or BME is perfect! Good luck whichever way you decide.
Old 11-03-2003, 02:22 PM
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John_RedSox
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Default RE: GP Christen Eagle engine

I was going to put the DA50 in my Christian Eagle but noise resrictions at my field would not allow for it. I put the new Fuji 50 SB in the plane and flys awesome. It also balances perfectly and I save a bunch of dough. You may want to upgrade the flying wired because one broke on me this weekend.
Old 11-03-2003, 03:36 PM
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Flyfalcons
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Default RE: GP Christen Eagle engine

John, how does the Eagle fly? Any pics?

I am putting an FPE 3.2 in mine. Should fly the plane well. Just waiting on radio gear to come in, then I can continue construction.
Old 11-03-2003, 07:09 PM
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Default RE: GP Christen Eagle engine

Ryan-

The plane flys like a true acrobatic airplane. Will do anything you want it to. Solid! I put my batteries, i ran two 1,100 mah packs on two switches which is what my hobby shop recommended, tword the back for balance. Landing is exaclty how it is done on fullscale. Dive down for landing and then up with a little elevator. Don't float it in. It's not a floater. When you come in on approach you can see the plane sink a little faster than most other planes and you will need some power. I believe GP even had intructions how to land the beast. I ran a 20 x 10 prop.
Old 11-03-2003, 07:46 PM
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BobH
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Default RE: GP Christen Eagle engine

I posted this Info in another thread so it may be worth posting here. We have 3 GP Pitts flying at our club, all with different engines. One a G-62, one a ZDZ 50 and the last with an OS 4 cylinder, 4 cycle engine. They all fly pretty well with the G-62 powered one flying a little heavier than the other two.. All things considered though, they do fly pretty much all the same.. Regards BobH.
Old 11-03-2003, 08:43 PM
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Default RE: GP Christen Eagle engine

I was looking at putting a Webra Bully Glow in mine. I'm thinking of the weight issue hoping to be in that 16 lb range. The Bully on glow is a very strong engine for the size and only weighs 48 oz with muffler. My next choice was a DA 50, BME 50 or even a 3W-48 Twin. Not sure how much the twin weighs?

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Old 11-03-2003, 10:13 PM
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JLB
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Default RE: GP Christen Eagle engine

I've got a Sachs 3.2 in my GP Pitts and I'm right at 18#. You're not going to see 16# with any
of the 50cc class gas engines.
Old 11-03-2003, 10:29 PM
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Default RE: GP Christen Eagle engine

My former Pitts was powered by my zdz 60 and it was a perfect match, manage the throtle and you'll have a winner.

Mine was 17lbs.

epc.
Old 11-04-2003, 07:33 AM
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Default RE: GP Christen Eagle engine

Here's my GP Eagle, just about ready to go. Using a Fuji 50 and basically standard size radio stuff, weight is 18.25 pounds with 2 ounces of tail weight needed to balance. Test flights next week.
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Old 11-04-2003, 07:39 AM
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Default RE: GP Christen Eagle engine

My beast weight just over 20 pounds. All digital servos with two battery packs and switches. Most likely that is where all my weight is at. No lead in the tail. Have fun flying her.

John
Old 11-04-2003, 05:24 PM
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serge1
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Default RE: GP Christen Eagle engine

ORIGINAL: John_RedSox

My beast weight just over 20 pounds. All digital servos with two battery packs and switches. Most likely that is where all my weight is at. No lead in the tail. Have fun flying her.

John


Dick


Your eagle is gorgeous!! Can't wait to finish mine!

Serge
Old 11-05-2003, 07:16 AM
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Default RE: GP Christen Eagle engine

Serge, YOUR Eagle will look just as good, as long as you don't spill a bucket of paint over it!

It's just an ARF. They ALL look good ... (to begin with, that is!)

Maybe mine would look even better if one of your "friends" would come over for a photo shoot.
Old 11-05-2003, 10:45 AM
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Default RE: GP Christen Eagle engine

For Pettit -- Does the Fuji 50 use the prop extension that is with the motor or did you have to buy a different size?

Thanks
Old 11-05-2003, 11:10 AM
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Default RE: GP Christen Eagle engine

you need to buy the short prop flange for the fuji.
Old 11-05-2003, 01:41 PM
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Default RE: GP Christen Eagle engine

Dick,

Do you have a part number for the Fuji "short prop flange"?

And how soon before your Eagle II is on the cover of RC Report??lol
Old 11-05-2003, 02:59 PM
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Default RE: GP Christen Eagle engine

Click on the link below. It's backordered till mid Dec.


http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXAPV0
Old 11-05-2003, 03:40 PM
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Default RE: GP Christen Eagle engine

Anyone try a BGX 3500 or Moki?
Old 11-05-2003, 11:17 PM
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Default RE: GP Christen Eagle engine

The prop-hub for the 64 fits the 50. It's a tab shorter 2.050mm vs. 2.071mm. The 64 hub also needs the 64 prop bolt. I used this on my 50 in a Pitts before they started making a short hub for the 50. Worked just fine on the Pitts. Fit the cowling perfectly. This is an option if you don't want to wait for the short hub for the 50.
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Old 11-06-2003, 12:47 AM
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Default RE: GP Christen Eagle engine

Putting an RCS 44 twin in mine. Ran it today for the first time with a 20x6-10 for a couple of minutes. I will run it again tomorrow with a Pro Zinger 20 x 10. I'll post pictures soon of the install. If I can recommend an engine for anyone, stick to a single cylinder!!!! A lot of work otherwise.
Paul
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Old 11-06-2003, 09:09 AM
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Default RE: GP Christen Eagle engine

Jaws:
I remember looking at the cool little RCS44 twin about a year ago - RCS offered it at a great price. They no longer list it on their website, however. Let us know about the installation and how it performs.
Old 11-07-2003, 04:06 PM
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Default RE: GP <span class=

I have one coming and it will be my winter project, going to go the Fuji 50 as much as I would like to put a DA 50 on it, I'll save a bunch of money. Has anyone added smoke? How does she fly? Any stall tendency on landings? Any info is appreciated.

Thanks,
Old 11-07-2003, 06:16 PM
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Default RE: GP <span class=

.
Old 11-07-2003, 10:26 PM
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Default RE: GP <span class=

I have a 3W-75 in mine with a 22-10 3-blade.

Wight is a little over 18lbs, throttle mgmt is a must!

I have over 100 flights with mo problems!

Don
www.rnlinc.com
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Old 11-08-2003, 06:14 PM
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Default RE: GP <span class=

don perry sounds like a sweet combo!!!!

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