Small Aircraft; Low Wing; 1 Eng; Fixed Gear
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 20; Flight Crew Total 1500; Flight Crew Type 1200
Situational Awareness; Troubleshooting; Confusion; Communication Breakdown
ATC Issue All Types; Airspace Violation All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Took Evasive Action
Airspace Structure; Human Factors; Procedure
Nothing dangerous; just a suggestion from a pilot on departure protocol. Yesterday afternoon; I departed SDL westbound. I was cleared for westbound departure; runway 21. Just to the west of SDL's Class D is Deer Valley's Class D; top at 3;999 Feet. So; a climb was planned to overfly Deer Valley at 4;500 Feet.  After I departed; the Tower Controller restricted me to 2;500 Feet; just as I was nearing leaving SDL Class D; and within just a few miles of Deer Valley.  I notified the Tower Controller; and her response was something like 'it's your responsibility to change frequencies.' So; basically; to comply; I had to maintain 2;500 Feet while in SDL Class D; and then; within approximately 20-30 seconds; reach Deer Valley Tower to obtain Class D clearance. With traffic on Deer Valley frequency; this was not possible; which then required a sharp deviation to the north. My suggestion is for tower controllers to consider the position in which they place pilots when they restrict westbound departures to 2;500 Feet; just east of Deer Valley Class D (which extends to 3;999 Feet.)
Pilot reports of being under flight following with SDL Tower and then being dropped with very limited airspace to maneuver and avoid DVT Class Delta airspace.