That’s a tough one… orthographic drawings for the CRJ are just not common nor of high quality on the open internet. You’d just have to use lots and lots of reference images to make out the shape, unfortunately. There’s usually more info on the 7/9/1000.

@DARZAVIATIONOFICIAL

@BaconAircraft ok, thank you very much for the suggestions, I would like to do all those details but my device only holds 200 parts xd, also do you know any page to download blueprints in high quality? it's hard to find a good blueprint

T(Post It Man:D)

Very nice mobile friendly regional pencil of the canada variety.
.
Just some feedback. (Of course with mobile friendly low parts approach in mind)

The Good:

• Wing shape is representative.
• The -100/-200 doesn't have slats, it didn't fool you!
• The stubby tail is stubby, the shape is pretty representative.

Slight Inaccuracies:

• The windshield is a bit too big. The drawing you used appeared to be scanned using a radish so I cant blame you. On the actual (-100 through -1000), a window sill exists between the skin and the glass, which is mistakenly depicted as glass in the reference.
• The wing-fuselage fairing is misshaped. The top of the fairing sits flush-ish with the fuselage. You may achieve that using Hard for the top 2 corners. In addition, the front of the fairing "blends" into the wing smoothly (for all AC -100 through -1000), while the rear "half" protrudes from the wing and the slight bump-out houses the gear (zoom in). The "halves" are only visible from underneath, and appear to be smooth and as one from other angles (especially the -1/200 due to lack of slats, approaches slightly nose-down vs. 7/9/1000).
• The engine nacelles are shorter and more rounded. Again the drawing referenced isn't clear, not your fault.
• The inboard spoiler is for lift dump, and pops automatically (if primed) when sufficient pressure is felt on the gear. The outboard spoilers are multi-functional.

Suggestions:

• For little additions to partcount (<30 ish) you could think about including these details.
• Aforementioned window sill, colour it metallic.
• Outline doors and covers, or simply show where they are with the metallic scuff plate.
• Little APU heat shield plate and hole on the side of the tail (2 parts).
• Metallic leading edge.
• Flat hinge fairings.
• Canadair/Bombardier/(Mitsubishi if you're a rebel) logo under the aftmost cockpit glass panel.

@DARZAVIATIONOFICIAL OK

@DARZAVIATIONOFICIAL lol, Thx 4 Pin

@MrCOPTY Xd ;)

@CR929thenewSPplayer Ok, but first I'll make a Boeing 307 ;)

Can you build a SOVIET aircraft? @DARZAVIATIONOFICIAL

Nice

T

Very nice!
T

@WinsWings Thank you very much friend ;)

very systematic, thanks for sharing