lear31A

My Feedback: (123)

I dont know if it will be a speed plane or not, but I am having built an AK-Models su-27. It will have an OS91FX with retracts. Nothing special just havent heard of a flight report on it yet. Custonbuiltmodels.com is doing the building. They send me progress pics every week. It is almost ready. It is a great looking airplane in the videos on their websight.(AK-Models.com) Anyway, here is a pic of just the fuselage, I have more of wings, gear etc. if interested.

lear31A

My Feedback: (123)

OK, I couple more

dmartian

My Feedback: (1)

I am just about finished with mine, I has been a challenge to build, I just have to finish the ailerons up and I am going to glue the wings on and glass the whole thing. Just got the engine the other day putting a Jett 90 in mine.

Razor-RCU

My Feedback: (50)

Please keep us posted- I have been looking at that SU-27! The Jett-90 or OS-91VRDF would be the ticket!

lear31A

My Feedback: (123)

I will do that. It should be ready by the end of the month. Hope it flies nice~!

lear31A

My Feedback: (123)

Here it is complete and ready for covering and cockpit details. The missile rails lock in after the covering. It will have a pitts muffler as well. Came out very nice! Should be finished covering this week and ready for maiden next weekend

wsmalley

My Feedback: (6)

I bought an AK MIG 29 to build and learn on while I work on my other 2 'jets' One an F4D Skyray with DF and a twin turbine (JPX's) SU-27. I got a good deal on the 29 but would have prefered the 27. I'll be interested also in how she flys and the powerplant's performance. I wasn't going to go to a .90 as I was more interested in handling techniques than all out speed. Keep us posted!

lear31A

My Feedback: (123)

Ill will let you know how it flies~

lear31A

My Feedback: (123)

Finally finished! I will post a flying report within a couple of weeks.

lear31A

My Feedback: (123)

couple more!

xxspeed

My Feedback: (5)

Im interested in SU-27 projest and how is it going for you, i have just received the same plane and have a Jett 90 and spring air retracts for it, so keep us posted and good luck with the 27. dave

bob27s

My Feedback: (19)

looks outstanding.....cant wait to hear the flight report

THEGRINCMAN

My Feedback: (41)

I am waiting also. Mine is being built right now.

JohnVH

My Feedback: (38)

Hey, thats pretty cool! Any updates?

lear31A

My Feedback: (123)

Thanks for all the compliments! I wish I could take all the credit but custombuiltmodels.com has really done a superb job. It is promised to be on a Greyhound today! I will give an update when it arrives on thurs.

lear31A

My Feedback: (123)

I have it in hand now, just waiting on our new runway to be built next week or so. I tried it once on our grass strip and it wouldn't lift off. Not enough prop and elevator throw. Also, the grass is very tough on the gear. So far, it lucks to be an outstanding airplane. Just an update since I pomised an update/flight report.

Razor-RCU

My Feedback: (50)

Looks great- Lose the MA prop and try an APC

It may help to add a little incidence to the nose-gear... just a couple of degrees-

AirGar

My Feedback: (7)

First pic is APC, second is MA, James. ??

Hey Lear, was there anything in the manual about setting these up with some positive (up) elevator when in the neutrel position? It seems, we had a an F-4 a few years back that we had to set up that way. (I realize this is not the same plane, however, it's similiar)

My current "delta" plane requires 1/8" positive throw on elevator, ailerons at 0.

Gary

lear31A

My Feedback: (123)

That would not be a bad idea to have some up in the elevator at the neutral position. The manual calls for 2.5" up and 2.5" down! Thats alot of throw! I can tell that it definately needs it to get off grass. When I have a long concrete strip it wont be necessary. Yes, I tried an APC and a MA the day of the pics (very observant!)

lear31A

My Feedback: (123)

Just to let you know, the maiden flight went very well. I just cannot seem to get enough throw in those elevators. Upon touchdown, I have full up elevator and it is HOT! I have flaperons mixed in but I cannot seem to get both ailerons/flaps to move the same distance down. One moves more than the other. It is not that critical for aileron operation, but with flaps it's very critical as you well know. Once I get the flaps working right and more throw in the elevators, it should slow way down for landing. It looks so cool coming in really nose high with power on for landing. Landing it at idle power doesnt give enough airflow over the elevators. Anyway, I am still experimenting with all the little quirks about it and trying to figure out what makes the airplane happy. During level flight with the gear retracted, it rolls effortlessly and beautiful. It does tend to loose speed in turns like a ducted fan, but with all the propwash, controls are still very effective. Coming out of a half loop/split S manuever it was probably 110-140 mph. JUST A GUESS! Alot faster than anything else I have flown. Full throttle-level flight-gear up is PROBABLY in the neighborhood 100mph-110mph. ANOTHER GUESS! Either way, this airplane is very stable, plenty of power, very responsive and looks cool in the air. The only part that makes me nervous is slowing down. It is unpredictable at slow speeds b/c I have not played around with slowflight/stalls yet. I can not say yet if it stalls sloppy,violent or gentle. WHAT A BLAST!



Ken




Change your options to hide images within all messages.






Move to folder:

Rudeboy

Lear,

How did you end up with the all up dry weight? They advertise it as 8.25 lbs... did you (or the people who built it) get it at the advertised weight?

By the way, this question is just out of curiousity... it won't have a lot to do with the take off behaviour.

You might try moving the CG a bit more AFT... that might clean up the take off and stall behaviour a little... but be carefull though... check if it is as in the manual first...
How are the main wheels placed in relation to the CG (see plan)? If they are far behind the CG you will always need speed to pull it off the runway...

lear31A

My Feedback: (123)

I have not weighed it yet. The CG is directly over the main gear which is good. I intentionally had it a little nose heavy for the first flight. You are right, it should handle better once moved back a little.

lear31A

My Feedback: (123)

I got bored, a couple of cans of ultracote paint and some newspaper~ A camo job! Looks good from afar, just dont get too close!