Kraydune

Hello,
I am getting back into the hobby and I am looking to build a sig astro hog for the winter. I am looking at putting an Asp 4 stroke on it and I am not sure how they stack up against O.S. as far as power goes. I am looking at the .91 and the 1.20 I wan to have plenty of power when needed. I was looking at the kit and it is showing 7 to 7.5 lbs which is close to the 4 star 60 I had with an O.S. .91 on it and at times I wanted a little more power on it.

carlgrover

I had a K&B .65 in mine and always had plenty of power.


carl

mscic-RCU

My Feedback: (6)

fly mine electric

Zor

Have a look _ _ _

http://www.rcuniverse.com/forum/kit-...endations.html

Zor

Kraydune

I have looked at electric, but the only experience I have with electric is a park zone t-28 (which has failed to impress me) I am building a sig 4 star 20 ep. I may wait and see how it does and look into making the hog electric also.

JCOKEEFE

My Feedback: (2)

A 70 four stroke would be plenty of power. I flew this aircraft with that size/type engine and there is plenty of reserve power. A 91 or 120 would be much more engine power than needed.
I know nothing about Asp engines, have always used OS engines.

mscic-RCU

My Feedback: (6)

Powered with Tacon 60, 80 amp ESC, 6 cell pack

John Sohm

My Feedback: (9)

I got an older Sig Astro Hog from a friend who moved to South Carolina a couple years ago. It had a KB .61 2 stroke in it. I converted to an O.S. 70 Surpass. If I were using a Magnum, or ASP in some places, 4 stroke, I would have no problem using their .70 4 stroke as it is basically identical to the O. S. engine. If you wanted a bit more power, then go with the .91 4 stroke but putting the 1.20 on a 7 - 8 pound plane with as much wing area as the Astro Hog has would be major over power.

Kraydune

Thanks for all the replies, I will probably go with the asp .91 4 stroke as I like the sound of the four strokes.

Bob Paris

My Feedback: (13)

Hay Kraydune,
I installed a K&B .61 and it flew my model just fine. Lots of power for the airframe and a very reliable engine for me. I do fly at sea level and I do not over power my models...but fly them on a wing. Its a great flying model, relaxing and forgiving in the air.
Soft Landings Always,
Bobby of Maui

funnotcrazy

I have an astro hog for 20 years with a Saito 91. P
save yourself some frustration and do not mount landing gear in wings. after too many nose overs, I mounted gear on fuse just in front of wings, problem solved.

TomCrump

I had one in my Kadet Sport, and really enjoyed it.

The engine really started to come into it's own, after 1.5 gallons of fuel.

The ASP/Magnum .91 four stroke would be my choice to power an Astro Hog.

Zor

TomCrump,

You may have noticed that I do not disagree with you.
However you remind me of the early days when the Astro Hog was powered with a K&B 45 and the radios were using reed relays receivers with audio tones modulation.

I do not know if you might remember that.

Zor

TomCrump

That's right. You don't know what I remember.

John Sohm

My Feedback: (9)

I like that finish! Bet it shows up great. My first plane was an Andrews H-Ray that I finished like that but with the cocarde markings (blue circle, white star with red center circle) on the wing. Liked it so much, when I got back into it after time in the Air Force, I did that finish on my second plane, a Goldberg Falcon 56. Nice job.