View Full Version : PA 18A-150 Cruise performance
11-05-2003, 07:00 PM
What would a typical cruise CAS/IAS and fuel consumption for a PA 18A-150 be?
Thanks in advance,
11-05-2003, 08:05 PM
I cruise at just under 120 mph. Its a stock 94 PA-18. Not Ag.
Fuel burn down low is 9 plus at 2500
up high 7-8 at 8000.
I cruise at just under 120 mph. .
Wow what do you have in that thing???? I can't get 120 in a steep dive!!!!!
I think ol' 94 has 8x6 tires on it. 197T would go 120mph when I bought it with 8x6's. Then I put on VG's, Big Tires, Big Gear, safety cables, took the gear fabric covering off, and now it is a 90mph airplane.
11-06-2003, 05:13 PM
'Cruise performance' is an oxymoron in a PA18-150. I have a stock 150 with a climb prop which will just about manage 95mph at 2450rpm.
11-06-2003, 05:16 PM
:) My 1989 did about 115 mph @ 2450 as built. :o Now 8241 prop, uncovered long gear, safety cables, 31" tires--80 mph now. :roll: A few more mods and cruise, best angle of climb, best rate of climb will probably all be the same.
11-06-2003, 05:22 PM
We have a fairly stock 150 here on 8:50's (no cables) that drives the Husky guys into a blue funk when they try and catch up.
11-06-2003, 05:24 PM
When I first was making the shopping list I had all the goodies in mind but because I cruise long distances to have fun and haven't really needed a borer climb prop, big tires and so on, I will have to say that I'm not quite as motivated to slow it down with the mods. Not to say that the 12 I'm considering building won't have a blown 360 with an MT constant speed, tundra tires, VG's and what ever else I can weight it down with and don't need.Oh but what fun! Don't you just love SUPERCUB.ORG.
11-06-2003, 06:04 PM
[quote="94SUPER18"]I cruise at just under 120 mph.
When is the last time you had the A/S indicator checked?
11-07-2003, 11:34 AM
I agree with checking your airspeed, compare with GPS.
I have never had a stock cub go 120 mph. I am on my 22nd cub project and in the last 30 years have had all types of configurations.
Typically with a factory stock cub with the old 800/4 tires and 74/56 pitch prop you could figure on 100 to 105 mph TAS, depending on how much gas you want to burn.
The only cub I've had go 120 was with a 180 hp and a cruse prop.
You probably have to have rebuilt 25 cubs before you qualify as an expert.... 8) (a joke of course! WOW!).
11-07-2003, 01:48 PM
Well guys, I don't have experience with a lot of cubs. Mine's pretty strait forward. I built it with the idea of keeping it light but put a pretty full panel in it and the Airtex interior. I have a 150hp with a cruise prop, 8.50s and safety cables. I regularly see 100kts on my GPS with no wind. Maybe my GPS is wrong or it's the satellites.
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