Powering the Skymaster 1:4 3/4 Hawk
10-18-2017, 10:16 AM
#1
Powering the Skymaster 1:4 3/4 Hawk
For those of you flying or who have flown the 1:4 3/4 Skymaster Hawk, which power choice would you suggest. I have both a P140rx and P180rx sitting on the bench. I'll also be flying with belly tank and wing tanks. Thanks in advance for your input.
bill
bill
10-18-2017, 01:03 PM
#4
I had a 140RX in my Hawk, and after a couple takeoffs from grass, I quickly dropped in a 180RX. The 140 would not get the Hawk out of the grass cleanly. And I did not have any external tank or ordinance on mine. Go with the 180 and tune it back if you must, but no lower then a 160 power.
10-18-2017, 05:31 PM
#6
I have one with a Rhino 160. I fly it with wing tanks and the Rhino handles it quite well. It not a speed beast but I like it that way. I would choose the 180, the 140 would be marginal power especially if take off is from grass.
Eduardo
Eduardo
10-18-2017, 06:23 PM
#8
Your p140 would fly the smaller extreme hawk. But nothing bigger.
I flew my SM Extreme Hawk with a Jetcat P80SE, and it was a wonderful combination. Very scale, and plenty of power for big, full-scale like aerobatics.
Never had any trouble with it performance wise. I put on 68 flights with that P80SE, before an air-bubble induced flame-out in a bad spot claimed its life.
I'm flying my 36lb DerJet Hunter (probably around 42lb fully fuelled) with a Merlin 140 (31lb thrust) - again a fantastic scale combination with more than enough power.
You don't need anything close to a 1:1 thrust/weight ratio for scale flying.
Now, if you want to be a hooligan, thrust is a must. I also have an Ultra Flash with a Merlin 140 in it - that fills my need for something over-powered
Paul
Last edited by JSF-TC; 10-18-2017 at 06:26 PM.
